question_answer 1)
What is sarcomere?
A)
Part between two H-lines done
clear
B)
Part between two A-band done
clear
C)
Part between two I-bands done
clear
D)
Part between two Z-lines done
clear
View Solution play_arrow
question_answer 2)
Which one of the following is a skull bone?
A)
Atlas done
clear
B)
Coracoid done
clear
C)
Arytenoid done
clear
D)
Pterygoid done
clear
View Solution play_arrow
question_answer 3)
During muscle contraction:
A)
ATP is broken down done
clear
B)
ATP is formed done
clear
C)
GTP is broken down done
clear
D)
None of the above done
clear
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question_answer 4)
Which is a part of pectoral girdle?
A)
Glenoid cavity done
clear
B)
Sternum done
clear
C)
Ilium done
clear
D)
Acetabulum done
clear
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question_answer 5)
Which of the following is striped muscle but not voluntary in action?
A)
Cardiac muscle done
clear
B)
Abdominal done
clear
C)
Shank done
clear
D)
Wrist muscles done
clear
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question_answer 6)
Which of the following are involved in muscle contraction?
A)
\[C{{a}^{2+}}andM{{g}^{2+}}\] done
clear
B)
\[C{{a}^{2+}}andN{{a}^{+}}\] done
clear
C)
\[N{{a}^{+}}and{{K}^{+}}\] done
clear
D)
\[M{{g}^{2+}}and{{K}^{+}}\] done
clear
View Solution play_arrow
question_answer 7)
Part of the body having a single pair of bones is:
A)
Pelvic girdle done
clear
B)
External ear done
clear
C)
Wrist done
clear
D)
Lower jaw done
clear
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question_answer 8)
Cardiac muscles are different from that of skeletal muscles as the former are:
A)
Striated but involuntary. done
clear
B)
Non-striated and involuntary. done
clear
C)
Smooth or unstriated. done
clear
D)
Voluntary in action. done
clear
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question_answer 9)
Which of the following joint is found between sternum and the ribs in humans?
A)
Angular joint done
clear
B)
Fibrous joint done
clear
C)
Cartilaginous joint done
clear
D)
Gliding joint done
clear
View Solution play_arrow
question_answer 10)
Which of the following sets of antagonistic muscles is incorrect?
A)
Flexor - Relaxor done
clear
B)
Abductor - Adductor done
clear
C)
Pronator - Supinator done
clear
D)
Levator - Depressor done
clear
View Solution play_arrow
question_answer 11)
Which one yields ATP, required for muscle contraction?
A)
Myoglobin done
clear
B)
Creatine phosphate done
clear
C)
Creatinine phosphate done
clear
D)
Myosin done
clear
View Solution play_arrow
question_answer 12)
Ankle joint is:
A)
Pivot joint done
clear
B)
Ball and socket joint done
clear
C)
Hinge joint done
clear
D)
Gliding joint done
clear
View Solution play_arrow
question_answer 13)
Which of the following is not exclusively supplied with involuntary muscles?
A)
Muscles of iris done
clear
B)
Muscles of the ducts of gland done
clear
C)
Muscles of urethra done
clear
D)
Muscular coats of blood vessel done
clear
View Solution play_arrow
question_answer 14)
ATPase activity is found in:
A)
Myosin filament done
clear
B)
Actin filament done
clear
C)
Both [a] and [b] done
clear
D)
None of these done
clear
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question_answer 15)
Biceps are attached with:
A)
Radius done
clear
B)
Ulna done
clear
C)
Femur done
clear
D)
Humerus done
clear
View Solution play_arrow
question_answer 16)
Example of an imperfect joint is:
A)
Suture done
clear
B)
Pubic symphysis done
clear
C)
Elbow joint done
clear
D)
Ball and socket joint done
clear
View Solution play_arrow
question_answer 17)
Elbow joint is:
A)
Ball and socket joint done
clear
B)
Hinge joint done
clear
C)
Suture joint done
clear
D)
Gliding joint done
clear
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question_answer 18)
Which set clearly identify striated muscles?
A)
Cylindrical, syncytial and unbranched done
clear
B)
Spindle, unbranched and uninucleated done
clear
C)
Cylindrical, striped and nucleated done
clear
D)
Cylindrical, striped and branched done
clear
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question_answer 19)
The joint between incus and stapes is;
A)
Hinge joint done
clear
B)
Gliding joint done
clear
C)
Pivot joint done
clear
D)
Ball and socket joint done
clear
View Solution play_arrow
question_answer 20)
Which is a high energy compound in muscles?
A)
Glucose done
clear
B)
Starch done
clear
C)
Glycogen done
clear
D)
Creatine phosphate done
clear
View Solution play_arrow
question_answer 21)
Muscles must have something rigid to pull against if they are to cause movement. In case of humans, the rigidity is supplied by ____; in the case of earthworms, the rigidity come from???.
A)
A hydrostatic skeleton; an endoskeleton. done
clear
B)
Opposing muscles; an exoskeleton. done
clear
C)
An exoskeleton; an endoskeleton; done
clear
D)
An endoskeleton; a hydrostatic skeleton. done
clear
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question_answer 22)
Sutures present between various bones of skull are:
A)
Cartilaginous joints done
clear
B)
Synovial joints done
clear
C)
Hinge joints done
clear
D)
Fibrous joints done
clear
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question_answer 23)
Astragalus and calcaneum are part of:
A)
Forelimb done
clear
B)
Hindlimb done
clear
C)
Scapula done
clear
D)
Clavicle done
clear
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question_answer 24)
The lactic acid generated during muscle contraction is converted to glycogen in:
A)
Muscle done
clear
B)
Kidney done
clear
C)
Pancreas done
clear
D)
Liver done
clear
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question_answer 25)
Hinge joints:
A)
Are synovial joints done
clear
B)
Permit movement in one direction done
clear
C)
Are found in knee done
clear
D)
All of the above done
clear
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question_answer 26)
In mammals, the number of cervical vertebrae is:
A)
7 done
clear
B)
9 done
clear
C)
1 done
clear
D)
12 done
clear
View Solution play_arrow
question_answer 27)
Joint between atlas and axis is:
A)
Pivot joint done
clear
B)
Saddle joint done
clear
C)
Angular joint done
clear
D)
Hinge joint done
clear
View Solution play_arrow
question_answer 28)
Muscles are arranged in pairs, ______.
A)
Enabling them to perform opposing movements. done
clear
B)
Doubling their strength. done
clear
C)
So they can take turns contracting and resting. done
clear
D)
So if one is injured, the other can take over. done
clear
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question_answer 29)
The strength of contraction of an entire skeletal muscle is dependent on the:
A)
Number of muscle fibres that contract simultaneously. done
clear
B)
Frequency of contraction of each muscle fibre done
clear
C)
Number of active cross bridges in each muscle fibre. done
clear
D)
All of the above done
clear
View Solution play_arrow
question_answer 30)
Part of the body having a single pair of bones is:
A)
Pelvic girdle, done
clear
B)
External ear done
clear
C)
Wrist done
clear
D)
Lower jaw done
clear
View Solution play_arrow
question_answer 31)
The functional unit of contractile system of a striated muscle is:
A)
Sarcomere done
clear
B)
Z-band done
clear
C)
Sarcosome done
clear
D)
Myofibril done
clear
View Solution play_arrow
question_answer 32)
During muscle contraction:
A)
Size of A-bands remains the same. done
clear
B)
Size of H-zone becomes smaller. done
clear
C)
Size of I-bands decreases. done
clear
D)
All of the above done
clear
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question_answer 33)
Quadriceps and gastrocnemius muscles lie in:
A)
Legs done
clear
B)
Hands done
clear
C)
Wrist done
clear
D)
Shoulder done
clear
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question_answer 34)
Pneumatic bones are .found in:
A)
House lizard done
clear
B)
Pigeon done
clear
C)
Flying fish done
clear
D)
Frog's tadpole done
clear
View Solution play_arrow
question_answer 35)
Intercostal muscles occur in:
A)
Abdomen done
clear
B)
Thigh done
clear
C)
Ribs done
clear
D)
Diaphragm done
clear
View Solution play_arrow
question_answer 36)
Which of the following would you not expect to find in both a skeletal muscle cell and a cardiac muscle cell?
A)
Actin filaments done
clear
B)
Myosin binding sites done
clear
C)
Potassium channels that close slowly after an action potential. done
clear
D)
Large numbers of mitochondria done
clear
View Solution play_arrow
question_answer 37)
Striated muscle fibres are found in;
A)
Urinary bladder done
clear
B)
Lungs done
clear
C)
Gallbladder done
clear
D)
Leg muscles done
clear
View Solution play_arrow
question_answer 38)
Which of the following animal has no skeleton?
A)
Sponge done
clear
B)
Butterfly done
clear
C)
Jellyfish done
clear
D)
Starfish done
clear
View Solution play_arrow
question_answer 39)
Which of the following muscle bends a part over another?
A)
Flexor done
clear
B)
Extensor done
clear
C)
Abductor done
clear
D)
Adductor done
clear
View Solution play_arrow
question_answer 40)
Sliding filament theory of muscle contraction was given by:
A)
Amon and Hill done
clear
B)
Huxley and Pullman done
clear
C)
Huxley and Huxley done
clear
D)
None of these done
clear
View Solution play_arrow
question_answer 41)
A deltoid ridge occurs in:
A)
Radius done
clear
B)
Ulna done
clear
C)
Femur done
clear
D)
Humerus done
clear
View Solution play_arrow
question_answer 42)
Multi-unit smooth muscles are found in the wall of:
A)
Large blood vessels done
clear
B)
Intestine done
clear
C)
Stomach done
clear
D)
Urinary bladder done
clear
View Solution play_arrow
question_answer 43)
Phalangeal formula of hand of man is:
A)
1, 2, 2, 2, 2 done
clear
B)
2, 1, 1, 1, 1 done
clear
C)
2, 3, 3, 3, 3 done
clear
D)
2, 3, 3, 2, 2 done
clear
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question_answer 44)
Sprain is pulling of:
A)
Bone done
clear
B)
Ligament of muscles done
clear
C)
Cartilage done
clear
D)
All of these done
clear
View Solution play_arrow
question_answer 45)
Foramen magnum occurs on:
A)
Lateral side of skull done
clear
B)
Posterior side of skull done
clear
C)
Anterior side of skull done
clear
D)
Neural canal done
clear
View Solution play_arrow
question_answer 46)
Creatine phosphate is present in:
A)
Nervous tissue done
clear
B)
Connective tissue done
clear
C)
Muscles of vertebrates done
clear
D)
Muscles of invertebrates done
clear
View Solution play_arrow
question_answer 47)
Joint between bones of human skull is:
A)
Hinge joint done
clear
B)
Synovial joint done
clear
C)
Cartilaginous joint done
clear
D)
Fibrous joint done
clear
View Solution play_arrow
question_answer 48)
In the given figure of pelvic girdle of man, structure marked as 1, 2, 3, 4 and 5 represents:
A)
1-Pubis, 2-Acetabulum, 3-llium, 4-Ischium, 5-Pubic symphysis done
clear
B)
1-Ilium, 2-Acetabulum, 3-Pubis, 4-Ischium, 5-Pubic symphysis done
clear
C)
1-Ischium, 2-Acetabulum, 3-Pubis, 4-Ilium, 5-Pubic symphysis done
clear
D)
1-Ilium, 2-Pubis, 3-Acetabulum, 4-Pubic symphysis, 5-Ischium done
clear
View Solution play_arrow
question_answer 49)
Red muscle fibres are rich in:
A)
Golgi bodies done
clear
B)
Mitochondria done
clear
C)
Lysosomes done
clear
D)
Ribosomes done
clear
View Solution play_arrow
question_answer 50)
A person is suffering from an age related disorder "X". X is characterised by decreased bone mass and increased chances of fractures. Identify X and its common cause.
A)
Tetany, Increased levels of estrogen done
clear
B)
Osteoporosis, Decreased levels of estrogen done
clear
C)
Myasthenia gravis, Decreased levels of estrogen done
clear
D)
Muscular dystrophy, increased levels of Estrogen done
clear
View Solution play_arrow
question_answer 51)
In the given diagram of skull, what does "1" represent?
A)
Frontal bone done
clear
B)
Temporal bone done
clear
C)
Occipital bone done
clear
D)
Parietal bone done
clear
View Solution play_arrow
question_answer 52)
Long uninucleate muscles are found in:
A)
Diaphragm done
clear
B)
Alimentary canal done
clear
C)
Tongue done
clear
D)
Eye done
clear
View Solution play_arrow
question_answer 53)
Match the name of bone given in column-I with their numbers given in column-II. ______
column-I column-II B. Wrist bones II. 2 pairs C. False ribs III. 12 A. Thoracic I. 8 D. Metatarsal IV. 3 pairs E. Skull(cranial & facial) V. 26 VI. 5 VII. 22
A)
A-I; B-VI; C-II; D-V; E-III done
clear
B)
A-III; B-I; C-IV; D-VI; E-VII done
clear
C)
A-I; B-VII; C-III; D-V; E-II done
clear
D)
A-II; B-V; C-VII; D-I; E-IV done
clear
View Solution play_arrow
question_answer 54)
Obturator foramen occurs in:
A)
Pelvic girdle done
clear
B)
Pectoral girdle done
clear
C)
Cranium done
clear
D)
Vertebrae done
clear
View Solution play_arrow
question_answer 55)
Which of the following match is incorrect?
A)
8th, 9th and 10th pairs of ribs - Do not articulate directly with the sternum but join the sixth rib with the help of hyaline cartilage. done
clear
B)
Glenoid cavity - Articulates with the head of the humerus to form the shoulder joint. done
clear
C)
Fibrous joint - Flat skull bones which fuse end-to-end with the help of dense fibrous connective tissues in the form of sutures to form the cranium. done
clear
D)
Increase in \[C{{a}^{++}}\] level - Leads to the binding of calcium with a subunit of troponin on actin filaments and thereby remove the masking of active sites for myosin. done
clear
View Solution play_arrow
question_answer 56)
In the given diagram of right pectoral girdle and upper arm few structure marked as 1, 2, 3, 4, 5, 6 and 7. Identify the marked structures from the options given below.
A)
\[{{1.1}^{st}}\] Vertebra, 2-Scapula, 3-Humerus, 4-Radius, 5-Ulna, 6-Carpals, 7-Metacarpals done
clear
B)
1-Scapula, 2-Clavicle, 3-Humerus, 4-Radius, 5-Ulna, 6-Carpals, 7-Metacarpal done
clear
C)
1-Ilium, 2-Scapula, 3-Humerus, 4-Radius, 5-Ulna, 6-Carpals, 7-Metacarpals done
clear
D)
1-Clavicle, 2-Scapula, 3-Humerus, 4-Radius, 5-Ulna, 6-Carpals, 7-Metacarpals done
clear
View Solution play_arrow
question_answer 57)
Upon preventing acetylcholine from diffusing across a neuromuscular junction, which of the following will not occur?
A)
No action potential will be produced in the affected muscle fibres. done
clear
B)
The endoplasmic reticulum releases calcium ions (\[C{{a}^{2++}}\]) into the cytoplasm. done
clear
C)
Myosin will not bind to actin in the affected muscle fibre. done
clear
D)
The affected muscle fibre will fail to contract. done
clear
View Solution play_arrow
question_answer 58)
In human beings, the second cervical vertebra helps in rotatory movements of head through knob-like process called:
A)
Prezygapophysis done
clear
B)
Olecranon process done
clear
C)
Odontoid process done
clear
D)
Metaphysis done
clear
View Solution play_arrow
question_answer 59)
Latissimus dorsi muscles are:
A)
Muscles of fore arm done
clear
B)
Muscles of lower jaw done
clear
C)
Muscles of the chest done
clear
D)
Muscles of the shoulder done
clear
View Solution play_arrow
question_answer 60)
The condition in which a number of nuclei are present in a muscle fibre is called:
A)
Coenocytic done
clear
B)
Syncytial done
clear
C)
Polykaryon done
clear
D)
Endoduplication done
clear
View Solution play_arrow
question_answer 61)
A stronger muscle contraction occurs when the brain _______.
A)
Send signals to larger number of motor units to contract. done
clear
B)
Activates muscle cells more quickly. done
clear
C)
Activates the motor units of the muscle one at a time. done
clear
D)
Sends nerve impulses to the muscle one at a time instead of in bursts. done
clear
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question_answer 62)
The vertebral column is connected to the pelvic girdle in the:
A)
Coccygeal region done
clear
B)
Sacral region done
clear
C)
Lumbar region done
clear
D)
cervical region done
clear
View Solution play_arrow
question_answer 63)
Which pair does not possess corresponding bones?
A)
Carpals, and tarsals done
clear
B)
Atlas and coccyx done
clear
C)
Pectoral girdle and pelvic girdle done
clear
D)
Humerus and femur done
clear
View Solution play_arrow
question_answer 64)
The joint where synovial capsule and synovial fluid are lacking is:
A)
Carpals done
clear
B)
Pubic symphysis in females done
clear
C)
Finger' and toes in males done
clear
D)
Femur and pelvis in females done
clear
View Solution play_arrow
question_answer 65)
Which one of the following shortens when a muscle fibre- contracts?
A)
Thick filament done
clear
B)
Sarcomere done
clear
C)
Myosin molecule done
clear
D)
thin filament done
clear
View Solution play_arrow
question_answer 66)
The number of 'true ribs' in a man is:
A)
12 pair done
clear
B)
7 pair done
clear
C)
3 pair done
clear
D)
2 pair done
clear
View Solution play_arrow
question_answer 67)
Muscle contraction is triggered:
A)
When high levels of oxygen and sugar are released by the sarcolemma. done
clear
B)
When a surplus of ATP is released by a nerve motor unit. done
clear
C)
By release of a neurotransmitter at a synapse that directly causes actin and myosin to slide. done
clear
D)
By the nerve releasing a neurotransmitter, which triggers a flow of calcium that attaches to actin filaments and exposes the myosin binding sites. done
clear
View Solution play_arrow
question_answer 68)
A cricket player is chasing a fast ball in the field. Which one of the following groups of bones are directly contributing in this movement?
A)
Femur, malleus, tibia, metatarsals done
clear
B)
Pelvis, ulna, patella, tarsals done
clear
C)
Sternum, femur, tibia, fibula done
clear
D)
Tarsals, femur, metatarsals, tibia done
clear
View Solution play_arrow
question_answer 69)
Which of the following muscles draw the lower jaw, tongue and the head backward?
A)
Proctor done
clear
B)
Retractor done
clear
C)
Abductor done
clear
D)
All of these done
clear
View Solution play_arrow
question_answer 70)
An example of gliding j joint is:
A)
Humerus and glenoid cavity done
clear
B)
Femur and tibio-fibula done
clear
C)
Occipital condyle and odontoid process done
clear
D)
Zygapophyses of adjacent vertebrae done
clear
View Solution play_arrow
question_answer 71)
Which of the following human skeletal parts are correctly matched with their respective category?
Pairs of skeletal parts Category [A] Humerus and ulna Appendicular skeleton [B] Malleus and stapes Ear ossicles [C] Sternum and ribs Axial skeleton [D] Clavicle and glenoid cavity Pelvic girdle
A)
A and B only done
clear
B)
A, B and C only done
clear
C)
A, B, and D only done
clear
D)
All of these done
clear
View Solution play_arrow
question_answer 72)
A motor unit is best described as:
A)
all the nerve fibres and muscle fibres in a single muscle bundle. done
clear
B)
one muscle fibre and its single nerve fibre. done
clear
C)
a single motor neuron and all the muscle fibres that it innervates. done
clear
D)
the neuron that provides the CNS with information on the state of contraction of the muscle. done
clear
View Solution play_arrow
question_answer 73)
Children sing a song that goes 'head, shoulders, knees, and toes...' If they sang the names of the bones, it would be (in order)
A)
Hyoid, sternum, patella, and tarsals. done
clear
B)
Cranial, clavicle, tibia, and carpals. done
clear
C)
Cranial, scapula, patella, and phalanges. done
clear
D)
Clavicle, carpals, phalanges, and tarsals. done
clear
View Solution play_arrow
question_answer 74)
Synovial fluid is found in:
A)
Cranial cavity done
clear
B)
Spinal cavity done
clear
C)
Immovable joints done
clear
D)
Freely movable joints done
clear
View Solution play_arrow
question_answer 75)
The given diagram shows a human skeleton. Which of the following correctly identifies the bones marked as 1, 2, 3 & 4?
A)
B)
C)
D)
View Solution play_arrow
question_answer 76)
Which of the following is incorrect?
A)
Cardiac muscle is striated. done
clear
B)
Smooth muscle does not contain actin. done
clear
C)
Skeletal muscle is considered voluntary. done
clear
D)
Smooth muscle is found in the iris of the eye and the walls of the bladder. done
clear
View Solution play_arrow
question_answer 77)
Smallest bone in the human body is:
A)
Stapes done
clear
B)
Malleus done
clear
C)
Patella done
clear
D)
Navicular bone done
clear
View Solution play_arrow
question_answer 78)
Lower jaw of man is made up of:
A)
1 bone done
clear
B)
2 bones done
clear
C)
No bones, only muscles done
clear
D)
3 bones done
clear
View Solution play_arrow
question_answer 79)
The action potential that triggers a muscle contraction, travels deep within the muscle cell by means of:
A)
Sarcoplasmic reticulum done
clear
B)
Transverse tubules done
clear
C)
Synapse done
clear
D)
Motor end plates done
clear
View Solution play_arrow
question_answer 80)
Which of the following does not reveal in the detailed analysis of a cilium from the human respiratory tract?
A)
Tubulin done
clear
B)
Plasmagel done
clear
C)
Microtubules done
clear
D)
Axoneme done
clear
View Solution play_arrow
question_answer 81)
Spinal cord passes through:
A)
Foramen of Monro done
clear
B)
Foramen ovale done
clear
C)
Obturator foramen done
clear
D)
Foramen magnum done
clear
View Solution play_arrow
question_answer 82)
In mammals, the lower jaw is made of:
A)
Maxilla done
clear
B)
Dentary done
clear
C)
Mandible done
clear
D)
Ethmoid done
clear
View Solution play_arrow
question_answer 83)
Before stimulating the release of calcium ions that causes muscle contraction in skeletal muscle, an action potential must pass through the:
A)
Sarcoplasmic reticulum done
clear
B)
T-tubules and Sarcoplasmic reticulum done
clear
C)
Plasma membrane and T-tubules done
clear
D)
Plasma membrane, T-tubules and Sarcoplasmic reticulum done
clear
View Solution play_arrow
question_answer 84)
Which of the following statements about the molecular arrangement of actin and myosin in myofibrils is incorrect?
(i) Each actin (thin filament) is made of 2F (filamentous) actins. (ii) F-actin is the polymer of G (globular) actin. (iii) 2F-actins are twisted into a-helix. (iv) Two strands of tropomyosin (protein) lie in the grooves of F-actin. (v) Troponin molecules (complex proteins) are distributed at regular intervals on the tropomysin. (vi) Troponin forms the head of the myosin molecule. (vii) The myosin is a polymerised protein.
A)
(i), (iii), (vii) done
clear
B)
(ii), (iv) and (v) done
clear
C)
Only (vi) done
clear
D)
Only (iii) done
clear
View Solution play_arrow
question_answer 85)
Patella bone is derived from:
A)
Cartilage done
clear
B)
Areolar tissue done
clear
C)
Tendon done
clear
D)
Ligament done
clear
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question_answer 86)
In humans, coccyx is formed by the fusion of:
A)
3 vertebra done
clear
B)
4 vertebra done
clear
C)
5 vertebra done
clear
D)
6 vertebra done
clear
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question_answer 87)
The intercalated discs of__ muscle__.
A)
Smooth; provide strong mechanical adhesion and rapid electrical communication done
clear
B)
Skeletal; are the basis for all voluntary muscle action done
clear
C)
Skeletal; make possible both fast twitches and slow twitches. done
clear
D)
Cardiac; provide strong mechanical adhesion and rapid electrical communication. done
clear
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question_answer 88)
Choose the letter from the figure that most appropriately corresponds to the structure.
(i) A-band (ii) I-band (iii) Sarcomere (iv) H-zone (v) Myosin (vi) Actin, Troponin, Tropomyosin (vii) Z-line
A)
(i) - E, (ii) - D, (iii) - F, (iv) - G, (v) - B, (vi) -C, (vii)-A done
clear
B)
(i) - E, (ii) - D, (iii) - C, (iv) - G, (v) - B, (vi) -A, (vii)-F done
clear
C)
(i) - E, (ii) - D, (iii) - F, (iv) - G, (v) - C, (vi) -A, (vii)-B done
clear
D)
(i) - E, (ii) - D, (iii) - F, (iv) - A, (v) - B, (vi) -C, (vii)-G done
clear
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question_answer 89)
Sigmoid notch is found in:
A)
Tibio-fibula done
clear
B)
Femur done
clear
C)
Radio-ulna done
clear
D)
Humerus done
clear
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question_answer 90)
Which of the following statements about the striated muscles is incorrect?
(i) In the centre of each I-band, is an elastic fibre (Z-line) which bisects it. (ii) Thin filaments are firmly attached to the Z-line. (iii) M-line is a fibrous membrane in the middle of A-bands. (iv) A sarcomere comprises one full A-bands and 2 half I-bands.
A)
All of these done
clear
B)
Only (iv) done
clear
C)
(i) and (ii) done
clear
D)
None of these done
clear
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question_answer 91)
In the given diagramatic representation of muscle contraction, identify the process marked as 1, 2, 3, 4 and 5.
A)
1-Cross bridge, 2-Cross bridge formation, 3-Breakmg of cross bridge, 4-Sliding (rotation), 5-ATP done
clear
B)
1-Cross bridge, 2-Cross bridge formation, 3-Sliding / rotation, 4-Breaking of cross bridge, 5-ATP done
clear
C)
1-Cross bridge, 2-Breaking of cross bridge, 3-Sliding/rotation, 4-Cross bridge formation, 5-AMP done
clear
D)
1-Cross bridge, 2-Cross bridge formation, 3-Sliding/rotation, 4-ADP, 5-Breaking of cross bridge. done
clear
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question_answer 92)
Zygomatic arch in Rabbit is formed by:
A)
Premaxilla, Maxilla and Palatine done
clear
B)
Maxilla, Jugal and Squamosal done
clear
C)
Periotic, Maxilla & Premaxilla done
clear
D)
All of the above done
clear
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question_answer 93)
Lower jaw in mammals articulates with a bone called:
A)
Jugal done
clear
B)
Alisphenoid done
clear
C)
Sqamosal done
clear
D)
Parietal done
clear
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question_answer 94)
The given figure shows the diagrammatic cross sectional view of a muscle with their parts marked as 1, 2, 3 and 4. Which part is held together by a common collagenous connective tissue layer?
A)
1 done
clear
B)
2 done
clear
C)
3 done
clear
D)
4 done
clear
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question_answer 95)
Put the following phrases in proper order to describe what occurs at the neuromuscular junction to trigger muscle contraction.
(i) Receptor sites on sarcolemma. (ii) Nerve impulse (iii) Release of \[C{{a}^{+2}}\] from sarcoplasmic reticulum. (iv) The neurotransmitter acetylcholine is released. (v) Sarcomere shorten. (vi) Synaptic cleft. (vii) Spread of impulses over sarcolemma on T-tubules.
A)
(ii), (iv), (i), (vi), (vii), (iii), (v) done
clear
B)
(ii), (iv), (vi), (i), (vii), (iii), (v) done
clear
C)
(i), (ii), (iii), (iv), (v), (vi), (vii) done
clear
D)
(vii), (vi), (v), (iv), (iii), (ii), (i) done
clear
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question_answer 96)
Just as, there are pseudopodia in Amoeba, there are:
A)
Teeth in rabbit done
clear
B)
Suckers upon scolex of tapeworm done
clear
C)
Legs in cockroach done
clear
D)
Spicules in Leucosolenia done
clear
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question_answer 97)
Which of the following statement is not the feature of red muscle fibres?
A)
They have plenty of mitochondria. done
clear
B)
They have high content of myoglobin. done
clear
C)
They have high amount of sarcoplasmic reticulum. done
clear
D)
They are called aerobic muscles. done
clear
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question_answer 98)
Consider the diagram given below and identify the parts labelled as 1,2,3,4, and 5 respectively.
A)
Femur, Ilium, Tibia, Pubis and Sacrum done
clear
B)
Pubis, Tibia, Femur, Ilium and Sacrum done
clear
C)
Ilium, Femur, Tibia, Pubis and Sacrum done
clear
D)
Pubis, Femur, Tibia, Ilium and Sacrum done
clear
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question_answer 99)
A student was given sample of two muscles marked as 1 and 2. When he compared the muscles he found that muscle 1 contains large amount of myoglobin and utilise large amount of stored oxygen for ATP production whereas muscle 2 contains few myoglobin, mitochondria and high sarcoplasmic reticulum. Identify the correct statement regarding the muscle 1 and 2 from the option given below.
A)
Both the muscles are called aerobic muscles. done
clear
B)
Both the muscles are called red fibres and depend on aerobic process for energy. done
clear
C)
Muscle 1 is called white fibres and whereas muscle 2 depends on aerobic process for energy. done
clear
D)
Muscle 1 is called red fibres and aerobic muscles whereas muscle 2 is called white fibres and depend on anaerobic process for energy. done
clear
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question_answer 100)
Locomotory organs in starfishes are:-
A)
Parapodia done
clear
B)
Pseudopodia done
clear
C)
Suckers done
clear
D)
Tubefeet done
clear
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question_answer 101)
Match the column-I with column-II and select the correct option.
Column-I Column-II A. Striated appearance of myofibril I. Distribution pattern of actin and myosin B. Store house of calcium ions II. Sarcoplasmic reticulum C. Energy released from ATP hydrolysis III. Helps myosin head to bind to exposed active sites on actin to form a cross bridge D. Globular head of meromyosin IV. Active AT Pase enzyme has binding sites for ATP and active sites for actin.
A)
A-I; B-II; C-III; D-IV done
clear
B)
A-III; B-I; C-IV; D-II done
clear
C)
A-II; B-I; C-III; D-IV done
clear
D)
A-III; B-IV; C-II; D-I done
clear
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question_answer 102)
The vertebra which bears the whole weight of the skull is:
A)
Atlas done
clear
B)
Axis done
clear
C)
Cervical done
clear
D)
Sacral done
clear
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question_answer 103)
Which of the following statement is incorrect?
A)
All movements lead to locomotion. done
clear
B)
Ciliary movement help in passage of ova through female reproductive tract. done
clear
C)
Microfilaments are involved in amoeboid movement. done
clear
D)
In Paramoecium, the cilia help in movement of food through cytopharynx and in locomotion as well. done
clear
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question_answer 104)
Match column-I with column-II and select the correct answer using the codes given below.
Column-I Column-II A. Cranium/Brainbx I. 29 B. Skull(cranial and facial bones) II. 8 C. Face III. 14 D. Hind limb IV. 12 pairs E. Ribs V. 30
A)
A-I; B-II; C-III; D-V; E-IV done
clear
B)
A-II; B-I; C-III; D-V; E-IV done
clear
C)
A-I; B-II; C-III; D-IV; E-V done
clear
D)
A-V; B-IV; C-III; D-II; A-I done
clear
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question_answer 105)
In the larynx of rabbit, which one of the following is the biggest cartilage?
A)
Arytenoid cartilage done
clear
B)
Cricoid cartilage done
clear
C)
Thyroid cartilage done
clear
D)
Tracheal cartilage done
clear
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question_answer 106)
Which of the following bones are not found in the human appendicular skeleton?
A)
Finger bones done
clear
B)
Upper arm bone done
clear
C)
Jaw bone done
clear
D)
Ankle bones done
clear
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question_answer 107)
Match column-I with column-II and select the correct answer using the codes given below.
Column-I Column-II A. Atlas and Axis I. Cartilaginous joint B. Two parietal bones II. Fibrous joint C. Two pubic bones III. Saddle joint D. First carpal and first metacarpal IV. Pivot joint
A)
A-II; B-I done
clear
B)
B-II; C-III done
clear
C)
C-II; D-III done
clear
D)
D-III; A-IV done
clear
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question_answer 108)
Match column-I with column-II and select the correct answer using the codes given below.
Column-I Column-II A. Ribs are attached to the sternum ventrally and to the vertebrae dorsally. I. True ribs B. Ribs are attached to sternum through coastal cartilage (hyaline) of 7th rib II. False ribs C. Ribs are not attached to sternum III. Floating ribs
A)
A-I; B-II; C-III done
clear
B)
A-I; B-III; C-II done
clear
C)
A-II; B-I; C-III done
clear
D)
A-III; B-II; C-I done
clear
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