question_answer1)
Which part of the brain controls posture and balance of the body?
question_answer2)
What is synapse?
question_answer3)
Name the sensory receptors found in the nose and on the
tongue.
question_answer5)
State the function of (a) gustatory receptors and (b)
olfactory receptors.
question_answer6)
Name two tissues which provide control and coordination in
animals.
question_answer7)
Name the two components of Central Nervous System (CNS) in
humans.
question_answer8)
Give some examples of involuntary actions.
question_answer9)
Name any two types of tropism.
question_answer10)
Why adrenaline is known as emergency hormone?
question_answer12)
Name one plant growth hormone, which retards growth during
extremely dry season.
question_answer13)
Name the plant hormone that inhibits growth and also helps
in wilting of leaves.
question_answer14)
What do we call the movement of shoot towards light?
question_answer15)
Name the plant hormone responsible for elongation of
cells.
question_answer16)
Which one is an emergency gland?
question_answer19)
What term is used for the movement of roots towards
gravity?
question_answer20)
Which receptor is absent in brain?
question_answer21)
Write the function of hormone thyroxin in our body.
question_answer27)
Differentiate between the movement in plants and animals.
(1+1)
question_answer29)
Explain in brief why hormonal responses are slower than
reflex actions?
question_answer30)
The hormones of pancreas are antagonistic in
nature. How?
question_answer34)
How does feedback mechanism regulate the hormone
secretion?
question_answer35)
Identify the labelled the parts (a), (b), (c) and (d).
question_answer37)
(a) What is reflex arc?
(b) How do muscle cells move?
question_answer39)
Brain is a very delicate organ. How does the body protect
such an organ?
question_answer43)
If iodine is insufficient in one's diet, what might be the
deficiency disease?
question_answer49)
'Plants also perform chemical coordination'.
Elaborate.
question_answer54)
Give an example of
a plant hormone that promotes growth.[NCERT, CBSE (AI) 2008C]
question_answer55)
Mention the receptors
for light and sound in animals.
question_answer56)
Which signals will
get disrupted in case of a spinal cord injury? [NCERT]
question_answer57)
Which hormone
regulates the concentration of sugar in the blood?
question_answer58)
Which part of the
brain maintains posture and equilibrium of the body? [NCERT]
question_answer59)
Define 'reflex
action.' [CBSE Delhi 2009]
question_answer60)
Name few
involuntary actions controlled by the hindbrain.
question_answer61)
How do we detect
the smell of an agarbatti (incense stick)?
[NCERT]
question_answer62)
What is an axon?
question_answer64)
What is the number
of cranial nerves and spinal nerves in human beings?
question_answer65)
Name the largest
cell present in the human body. [CBSE Delhi 2008]
question_answer66)
Which part of
central nervous system controls reflexes?
question_answer68)
Why is the use of iodized
salt advised to us?
question_answer69)
Which hormone controls
the metabolism of calcium and phosphorus in human beings?
question_answer72)
Which hormone helps
in lowering the level of blood glucose in human beings?
question_answer73)
What do you
understand by the sleep movement of plant organs?
question_answer74)
In the figure below
(i), (ii) and (Hi), which appears more accurate and why?
question_answer75)
State the main
function of abscisic acid in plants.
question_answer76)
What is the role of
the brain in reflex action?
question_answer78)
Define a synapse.
question_answer79)
What is the
difference between a reflex action and walking? [NCERT]
question_answer80)
What happens at the
synapse between two neurons? [NCERT]
question_answer81)
What is turgor movement?
question_answer82)
How do auxins promote the growth of a tendril around a
support? [NCERT]
question_answer83)
How does chemical coordination take place in animals? [NCERT]
question_answer84)
How do animal
muscles move?
question_answer85)
Mention the
functions of forebrain.
question_answer87)
How does our body
respond when adrenaline is secreted into the blood?
question_answer88)
[NCERT]
Why do tendrils
coil around hard rough objects?
question_answer89)
Why are some diabetes
patients treated by giving insulin injections? [NCERT]
question_answer90)
Why is pancreas
called a 'dual function' gland? Write the names of its hormones.
question_answer92)
How does chemical
coordination occur in plants? [NCERT]
question_answer93)
What is the need
for a system of control and coordination in an organism?
question_answer96)
[NCERT]
How is reflex arc
formed?
question_answer97)
What is feedback
mechanism?
question_answer105)
What is
cerebrospinal fluid? What is its function?
question_answer106)
How are the brain
and spinal cord protected?
question_answer109)
What is association
neuron?
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What inference you draw from the graph?
