-
question_answer1)
The plants growing in dark show yellowing in leaves and elongated internodes, this condition is called as [BHU 1999]
A)
Etiolation done
clear
B)
Chlorosis done
clear
C)
Dechlorosis done
clear
D)
Dark effect done
clear
View Solution play_arrow
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question_answer2)
The shade loving plants are called
A)
Heliophytes done
clear
B)
Sciophytes done
clear
C)
Chasmophytes done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer3)
The example of sun-drassers are
A)
Mango done
clear
B)
Saraca indica done
clear
C)
Ferns done
clear
D)
Palm done
clear
View Solution play_arrow
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question_answer4)
Ribulose phosphate is a
A)
Aldose sugar done
clear
B)
Ketose sugar done
clear
C)
Disaccharide done
clear
D)
Trisaccharide done
clear
View Solution play_arrow
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question_answer5)
Which of the following has been used in photosynthetic researches
A)
Scenedesmus done
clear
B)
Chlorella done
clear
C)
Both [a] and [b] done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer6)
A granum is made up of
A)
Single thylakoid done
clear
B)
Two thylakoids done
clear
C)
Many thylakoids arranged one above the other done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer7)
Solar energy is converted into ATP in [CPMT 1990]
A)
Mitochondria done
clear
B)
Chloroplasts done
clear
C)
Ribosomes done
clear
D)
Peroxisomes done
clear
View Solution play_arrow
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question_answer8)
Osmophilic granules are present in
A)
Plasma membrane done
clear
B)
Cytoplasm done
clear
C)
Chloroplast done
clear
D)
Ribosomes done
clear
View Solution play_arrow
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question_answer9)
Which of the following equation can be more appropriate for photosynthesis [KCET 1994; Kerala PMT 2004]
A)
\[6C{{O}_{2}}+6{{H}_{2}}O\underset{\text{Chlorophyll}}{\mathop{\xrightarrow{\text{Light}}}}\,{{C}_{2}}{{H}_{12}}{{O}_{6}}+6{{O}_{2}}\] done
clear
B)
\[6C{{O}_{2}}+12{{H}_{2}}O\underset{\text{Chlorophyll}}{\mathop{\xrightarrow{\text{Light}}}}\,{{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{H}_{2}}O+6{{O}_{2}}\] done
clear
C)
\[12C{{O}_{2}}+6{{H}_{2}}O\underset{\text{Chlorophyll}}{\mathop{\xrightarrow{\text{Light}}}}\,2{{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{O}_{2}}\] done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer10)
How much percentage of absorbed water is used in photosynthesis
A)
1% done
clear
B)
5% done
clear
C)
10% done
clear
D)
90% done
clear
View Solution play_arrow
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question_answer11)
The starch is insoluble in water even than it is stored in potato in more quantity
A)
By microbes done
clear
B)
Because it is manufactured in tuber done
clear
C)
Because plants use it as food done
clear
D)
Because first it come to tuber as sugar solution then it is stored as starch done
clear
View Solution play_arrow
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question_answer12)
The plant Cuscuta shows maximum photosynthesis in
A)
Red light done
clear
B)
Blue light done
clear
C)
Green light done
clear
D)
No photosynthesis at all done
clear
View Solution play_arrow
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question_answer13)
Photosynthesis is a process of
A)
Oxidation of food done
clear
B)
Manufacture of food done
clear
C)
Both [a] and [b] done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer14)
Which of the following is anabolic process
A)
Synthesis of carbohydrate done
clear
B)
Synthesis of fat done
clear
C)
Synthesis of protein done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer15)
85-90% of all photosynthesis of the world is carried out by [CPMT 1972, 79; DPMT 1989]
A)
Shrubs done
clear
B)
Herbs done
clear
C)
Oceanic algae done
clear
D)
Trees with large branches done
clear
View Solution play_arrow
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question_answer16)
In presence of light, green plants convert carbon dioxide and water into food stuffs. Which of the following is likely to be the first substance that a green plant makes in photosynthesis
A)
A simple sugar done
clear
B)
Starch done
clear
C)
Cellulose done
clear
D)
Fat done
clear
View Solution play_arrow
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question_answer17)
The balance between\[C{{O}_{2}}\]and\[{{O}_{2}}\]is brought about by [Bihar MDAT 1995]
A)
Transpiration done
clear
B)
Photosynthesis done
clear
C)
\[{{C}_{4}}\] pathway done
clear
D)
Photorespiration done
clear
View Solution play_arrow
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question_answer18)
The synthesis of ATP in photosynthesis and respiration is essentially an oxidation-reduction process involving removal of energy from [CBSE PMT 1992; CPMT 1988]
A)
Oxygen done
clear
B)
Phytochrome done
clear
C)
Cytochrome done
clear
D)
Electrons done
clear
View Solution play_arrow
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question_answer19)
All plastids have essentially same structure because [CBSE PMT 1992]
A)
They have to perform same function done
clear
B)
They are localized in aerial parts of plants done
clear
C)
All plastids store starch, lipid and proteins done
clear
D)
One type of plastid can be differentiated into another type of plastid depending on cell requirements done
clear
View Solution play_arrow
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question_answer20)
Wavelength of green light is [BHU 1982]
A)
\[400-500m\mu \] done
clear
B)
\[500-550m\mu \] done
clear
C)
\[660-720m\mu \] done
clear
D)
\[720-800m\mu \] done
clear
View Solution play_arrow
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question_answer21)
Chemosynthesis and photosynthesis are alike in that both [CPMT 1988]
A)
Are associated with heterotroph done
clear
B)
Require sunlight as an energy source done
clear
C)
Methods of autotrophic nutrition done
clear
D)
Occur in tracheaphytes done
clear
View Solution play_arrow
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question_answer22)
Ribulose diphosphate carboxylase oxygenase is located in [BHU 1989]
A)
Mitochondria done
clear
B)
Choloroplasts done
clear
C)
Peroxisomes done
clear
D)
Golgi bodies done
clear
View Solution play_arrow
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question_answer23)
The percentage of light energy utilized for photosynthesis by higher plants is [CPMT 1972, 91; BHU 1979; RPMT 1990]
A)
100% done
clear
B)
50 % done
clear
C)
10% done
clear
D)
1 to 2% done
clear
View Solution play_arrow
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question_answer24)
During photosynthesis [NCERT 1978; MP PMT 1990; CPMT 1998, 2003; Pb. PMT 2000, 03]
A)
Both\[C{{O}_{2}}\]and water get oxidized done
clear
B)
Both\[C{{O}_{2}}\]and water get reduced done
clear
C)
Water is reduced and\[C{{O}_{2}}\]is oxidized done
clear
D)
Carbon dioxide gets reduced and water get oxidised done
clear
View Solution play_arrow
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question_answer25)
Which of the following is the bye-product of photosynthesis
A)
Potential energy done
clear
B)
Energy done
clear
C)
Carbon dioxide done
clear
D)
Oxygen done
clear
View Solution play_arrow
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question_answer26)
Assimilatory power refers to [JIPMER 1990; BHU 1983; AFMC 1994]
A)
Generation of\[ATP\]and\[NADP{{H}_{2}}\] done
clear
B)
Reduction of\[C{{O}_{2}}\] done
clear
C)
Splitting of water done
clear
D)
Disintegration of plastids done
clear
View Solution play_arrow
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question_answer27)
Grana refers to [BHU 1984]
A)
Stacks of thylakoids in plastids of higher plants done
clear
B)
A constant in quantum equation done
clear
C)
Glycolysis of glucose done
clear
D)
Bye product of photosynthesis done
clear
View Solution play_arrow
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question_answer28)
Intact chloroplast from green leaves can be isolated by [AIIMS 1990]
A)
Acetone done
clear
B)
Ethanol done
clear
C)
Alcohol done
clear
D)
Sugar solution done
clear
View Solution play_arrow
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question_answer29)
Photosynthetic phosphorylation is
A)
Oxidative process done
clear
B)
Photo process done
clear
C)
Both [a] and [b] done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer30)
Phenomenon which converts light energy into chemical energy is [AFMC 1985, 2005]
A)
Respiration done
clear
B)
Photosynthesis done
clear
C)
Transpiration done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer31)
Photosynthesis is a [JIPMER 1986; MHCET 2002]
A)
Exothermic process done
clear
B)
Exergonic process done
clear
C)
Anabolic process done
clear
D)
Catabolic process done
clear
View Solution play_arrow
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question_answer32)
Leaves appear green because they [NCERT 1982]
A)
Reflect green light done
clear
B)
Absorb green light done
clear
C)
Both reflect and absorb green light done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer33)
In photosynthesis, oxygen is liberated due to [DPMT 1983; MP PMT 1999]
A)
Reduction of carbon dioxide done
clear
B)
Hydrolysis of carbohydrate done
clear
C)
Photolysis of water done
clear
D)
Breakdown of chlorophyll done
clear
View Solution play_arrow
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question_answer34)
Chloroplast fixes [DPMT 1987]
A)
\[{{O}_{2}}\] done
clear
B)
\[{{H}_{2}}\] done
clear
C)
\[C{{O}_{2}}\] done
clear
D)
\[{{N}_{2}}\] done
clear
View Solution play_arrow
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question_answer35)
Quantasomes contain [CPMT 1982; MP PMT 1984]
A)
200 chlorophyll molecules done
clear
B)
230 chlorophyll molecules done
clear
C)
250 chlorophyll molecules done
clear
D)
300 chlorophyll molecules done
clear
View Solution play_arrow
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question_answer36)
Two chief functions of leaves are [NCERT 1985]
A)
Photosynthesis and respiration done
clear
B)
Photosynthesis and transpiration done
clear
C)
Transpiration and respiration done
clear
D)
Respiration and digestion done
clear
View Solution play_arrow
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question_answer37)
For photosynthesis (i.e. for the synthesis of organic matter), the green plants need only [AFMC 1987]
A)
Light done
clear
B)
Chlorophyll done
clear
C)
\[C{{O}_{2}}\]and water done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer38)
Besides water and light, which is more essential as a raw material for food formation [BHU 1979]
A)
\[{{O}_{2}}\] done
clear
B)
\[C{{O}_{2}}\] done
clear
C)
Mineral salts done
clear
D)
NAD done
clear
View Solution play_arrow
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question_answer39)
\[C{{O}_{2}}\]is formed in all of the following except [BHU 1977]
A)
Burning of sugar done
clear
B)
Respiration in plants done
clear
C)
Photosynthesis by plants done
clear
D)
On heating of limestone done
clear
View Solution play_arrow
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question_answer40)
The gas absorbed during photosynthesis is [CPMT 1986]
A)
Oxygen done
clear
B)
Nitrogen done
clear
C)
Ammonia done
clear
D)
Carbon dioxide done
clear
View Solution play_arrow
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question_answer41)
Which branch of Botany is concerned with the study of photosynthesis [AMU 1990]
A)
Ecology done
clear
B)
Psycology done
clear
C)
Plant physiology done
clear
D)
Embryology done
clear
View Solution play_arrow
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question_answer42)
Approximate amount of water on earth which split by photosynthesis once every 2 million years is
A)
10 million\[k{{m}^{3}}\] done
clear
B)
15 million\[k{{m}^{3}}\] done
clear
C)
20 million\[k{{m}^{3}}\] done
clear
D)
25 million\[k{{m}^{3}}\] done
clear
View Solution play_arrow
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question_answer43)
For the process of photosynthesis all except one of the following items are essential. Point out the exception [MP PMT 1986]
A)
Water, minerals done
clear
B)
Light, chlorophyll done
clear
C)
\[C{{O}_{2}}\], optimum temperature done
clear
D)
Oxygen, sucrose done
clear
View Solution play_arrow
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question_answer44)
In angiosperms, synthesis of chlorophyll occurs in presence of [CPMT 1984]
A)
Phytochrome done
clear
B)
Light done
clear
C)
Cytochrome done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer45)
The ultraviolet radiations from the sun cause reactions that produce [CPMT 1982]
A)
Carbon monoxide done
clear
B)
Carbon dioxide done
clear
C)
Ozone done
clear
D)
Fluorides done
clear
View Solution play_arrow
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question_answer46)
Which of the following is not required in the synthesis of carbohydrates [CPMT 1985]
A)
\[C{{O}_{2}}\] done
clear
B)
Chlorophyll done
clear
C)
Nitrogen done
clear
D)
Water done
clear
View Solution play_arrow
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question_answer47)
Which one of the following is due energy currency of the cell or The common immediate source of energy in cellular activity is [MP PMT 1986; CPMT 1977, 80, 89, 91]
A)
Phosphate done
clear
B)
ATP done
clear
C)
ADP done
clear
D)
AMP done
clear
View Solution play_arrow
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question_answer48)
The process of photosynthesis takes place in [CMC Vellore 1984]
A)
Roots only done
clear
B)
Shoot only done
clear
C)
All the cells of plant done
clear
D)
Chlorophyll containing cells only done
clear
View Solution play_arrow
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question_answer49)
Light energy is converted into chemical energy in the presence of [MP PMT 1994]
A)
Pyrenoids done
clear
B)
Chloroplasts done
clear
C)
Ribosomes done
clear
D)
Mesosomes done
clear
View Solution play_arrow
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question_answer50)
Intensity of light can be measured by
A)
Lux meter done
clear
B)
Wilmott's bubbler done
clear
C)
Ganong's potometer done
clear
D)
Farmer's photometer done
clear
View Solution play_arrow
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question_answer51)
Phylloclade, the modified photosynthetic organ is a
A)
Flattened leaf done
clear
B)
Flattened petiole done
clear
C)
Flattened stem done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer52)
Importance of photosynthesis is due to
A)
Synthesis of food done
clear
B)
Purification of atmosphere done
clear
C)
Provided vast resources of energy done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer53)
Algae float in the water during day time and sink during night time because
A)
They become buoyant due to consumption of food materials in respiration done
clear
B)
They lose weight at night done
clear
C)
They come up to enjoy sunshine done
clear
D)
They become buoyant in light due to accumulation of oxygen bubbles released in photosynthesis done
clear
View Solution play_arrow
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question_answer54)
Quantasomes are found in [RPMT 1995]
A)
Surface of cristae done
clear
B)
Surface of plasma membrane done
clear
C)
Surface of nuclear membrane done
clear
D)
Surface of thylakoids done
clear
View Solution play_arrow
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question_answer55)
Photosynthesis is a process in which [BHU 1995]
A)
\[C{{O}_{2}}\]is reduced to carbohydrate done
clear
B)
NADH is reduced to NAD done
clear
C)
ATP is generated done
clear
D)
Oxidative phosphorylation occurs done
clear
View Solution play_arrow
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question_answer56)
Aerobic atmosphere is maintained by
A)
Prokaryotes done
clear
B)
Protists done
clear
C)
Plants done
clear
D)
Fungi done
clear
View Solution play_arrow
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question_answer57)
What is the unique process which has supported life on this planet
A)
\[{{N}_{2}}-\]fixation done
clear
B)
Photosynthesis done
clear
C)
Protein synthesis done
clear
D)
Respiration done
clear
View Solution play_arrow
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question_answer58)
Total amount of the dry weight of photosynthate produced by all type of plants per annum is [AMU 1992]
A)
1.7 million tonnes done
clear
B)
17 million tonnes done
clear
C)
170 million tonnes done
clear
D)
1700 million tonnes done
clear
View Solution play_arrow
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question_answer59)
How many molecules of water are needed by a green plant to produce one molecule of hexose/ reduce 6 molecules of CO2
A)
6 done
clear
B)
12 done
clear
C)
24 done
clear
D)
One only done
clear
View Solution play_arrow
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question_answer60)
What is the common value of PQ (photosynthetic quotient) of a leaf
A)
> 1 done
clear
B)
< 1 done
clear
C)
One done
clear
D)
Zero done
clear
View Solution play_arrow
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question_answer61)
Which group is not alike [EAMCET 1980]
A)
Enzyme and protein synthesis done
clear
B)
Osmosis and diffusion done
clear
C)
Photosynthesis and respiration done
clear
D)
Growth and movement done
clear
View Solution play_arrow
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question_answer62)
The detectable end product of photosynthesis is
A)
Glucose done
clear
B)
Fructose 1, 6 diphosphate done
clear
C)
Ribulose phosphate done
clear
D)
Starch done
clear
View Solution play_arrow
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question_answer63)
Sugar produced in photosynthesis is converted into starch in
A)
All plants done
clear
B)
Majority of plants done
clear
C)
Algae only done
clear
D)
Bacteria only done
clear
View Solution play_arrow
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question_answer64)
The gas released in photosynthesis is
A)
Pure\[C{{O}_{2}}\] done
clear
B)
Pure\[{{O}_{2}}\] done
clear
C)
Mainly\[C{{O}_{2}}\] done
clear
D)
Mainly\[{{O}_{2}}\] done
clear
View Solution play_arrow
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question_answer65)
The most vital process for the existence of life on earth is [KCET 1994]
A)
Communication in animals done
clear
B)
Photosynthesis by plants done
clear
C)
Reproduction in plants and animals done
clear
D)
Respiration in animals done
clear
View Solution play_arrow
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question_answer66)
Plants are known as purifiers of air due to process of [MP PMT 1996]
A)
Respiration done
clear
B)
Photosynthesis done
clear
C)
Transpiration done
clear
D)
Desiccation done
clear
View Solution play_arrow
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question_answer67)
The use of solar cooker by man is copying of which one by the following processes
A)
Photosynthesis done
clear
B)
Respiration done
clear
C)
Guttation done
clear
D)
Photorespiration done
clear
View Solution play_arrow
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question_answer68)
Which process is related with photosynthesis [CPMT 1998]
A)
Phosphorylation done
clear
B)
Translation done
clear
C)
Transcription done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer69)
The full expansion of NADP is [RPMT 1997]
A)
Nicotinamide adenine diphosphate done
clear
B)
Nicotinamide adenosine diphosphate done
clear
C)
Nicotinamide adenine dinucleotide phosphate done
clear
D)
Nicotinamide adenosine dinucleotide phosphate done
clear
View Solution play_arrow
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question_answer70)
Make suitable pair A. Emerson effect a. \[{{C}_{4}}\]cycle B. Hill reaction b. Photolysis C. Calvin's cycle c. \[{{C}_{3}}\]cycle D. Hatch and Slack cycle d. Photosystem-I and II [RPMT 1997]
A)
Aa, Bb, Cc, Dd done
clear
B)
Aa, Bc, Cd, Da done
clear
C)
Ac, Bd, Ca, Db done
clear
D)
Ad, Bb, Cc, Da done
clear
View Solution play_arrow
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question_answer71)
In photosynthesis, energy from light reaction to dark reaction is transferred in the form of [CBSE PMT 2002]
A)
ADP done
clear
B)
ATP done
clear
C)
RUDP done
clear
D)
Chlorophyll done
clear
View Solution play_arrow
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question_answer72)
Dimorphic chloroplasts are present in [MHCET 2002]
A)
Sugar cane done
clear
B)
Cotton done
clear
C)
Pea done
clear
D)
Mango done
clear
View Solution play_arrow
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question_answer73)
In photosynthesis, plants [CPMT 1988; AFMC 2003; MP PMT 2004]
A)
Absorb \[{{O}_{2}}\] and release \[C{{O}_{2}}\] done
clear
B)
Absorb \[C{{O}_{2}}\]and release \[{{O}_{2}}\] done
clear
C)
Absorb \[N{{H}_{3}}\]and release \[{{N}_{2}}\] done
clear
D)
Absorb \[{{N}_{2}}\] and release \[N{{H}_{3}}\] done
clear
View Solution play_arrow
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question_answer74)
Emerson effect explain the phenomenon of [Kerala CET 2003; KCET 2003]
A)
Transpiration done
clear
B)
Absorption of water by roots done
clear
C)
Photosynthesis done
clear
D)
Respiration done
clear
View Solution play_arrow
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question_answer75)
Match the sites in column I with the processes in column II and choose the correct combination from the options
| Column I | | Column II |
A. | Grana of chloroplast | 1. | Kreb's cycle |
B. | Stroma of chloroplast | 2. | Light reaction |
C. | Cytoplasm | 3. | Dark reaction |
D. | Mitochondrial matrix | 4. | Glycolysis |
[Kerala PMT 2004]
A)
A-4, B-3, C-2, D-1 done
clear
B)
A-1, B-2, C-4, D-3 done
clear
C)
A-2, B-1, C-3, D-4 done
clear
D)
A-3, B-4, C-1, D-2 done
clear
E)
A-2, B-3, C-4, D-1 done
clear
View Solution play_arrow
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question_answer76)
Suspension of isolated thylakoids in culture medium containing \[C{{O}_{2}}\] and \[{{H}_{2}}O\] does not produce hexose due to absence of which of the following [DPMT 2004]
A)
ATP done
clear
B)
Enzyme done
clear
C)
Proteins done
clear
D)
Hill reagent done
clear
View Solution play_arrow
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question_answer77)
Photosynthetically least efficient radiation is [Manipal 2005]
A)
Blue done
clear
B)
Yellow done
clear
C)
Green done
clear
D)
Red done
clear
View Solution play_arrow
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question_answer78)
Quantasome are present in [Haryana PMT 2005]
A)
Stroma done
clear
B)
Grana done
clear
C)
Mitochondria done
clear
D)
Golgi body done
clear
View Solution play_arrow
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question_answer79)
The first event in photosynthesis is [CPMT 1975, 80, 81, 84; AFMC 1984, 86, 88; JIPMER 1987, 2002]
A)
Synthesis of ATP done
clear
B)
Photoexcitation of chlorophyll and ejection of electron done
clear
C)
Photolysis of water done
clear
D)
Release of oxygen done
clear
View Solution play_arrow
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question_answer80)
During the course of photosynthesis [CPMT 1985]
A)
ATP is formed done
clear
B)
ATP is not formed done
clear
C)
Oxygen evolved comes from carbon dioxide done
clear
D)
Water is required as medium but it does not take part in photosynthetic reactions done
clear
View Solution play_arrow
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question_answer81)
Which of the following is initiating step in photosynthesis [CBSE PMT 2000; AIEEE 2004]
A)
ATP formation done
clear
B)
Glucose formation done
clear
C)
Photolysis of water done
clear
D)
Activation of chlorophyll by sunlight done
clear
View Solution play_arrow
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question_answer82)
The first step in photosynthesis is [AIEEE 2004]
A)
Formation of ATP done
clear
B)
Ionisation of water done
clear
C)
Excitation of an electron of chlorophyll by a photon of light done
clear
D)
Attachment of \[C{{O}_{2}}\] to \[{{H}^{+}}\]ion done
clear
View Solution play_arrow