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question_answer1)
Who studied the ultrastructure of bundle sheath
A)
Arnon done
clear
B)
Leach done
clear
C)
Fujita done
clear
D)
Hill done
clear
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question_answer2)
What is meant by fret membrane
A)
Thylakoids done
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B)
Quantasomes done
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C)
Stroma lamellae done
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D)
Outer membranes of chloroplast done
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question_answer3)
Which of the following is correct for photosynthesis
A)
Biological oxidation process done
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B)
Photochemical catabolic process done
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C)
Photo-oxidative metabolism done
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D)
Biological photometabolism done
clear
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question_answer4)
Which of the following may show photosynthesis in moonlight
A)
Some thermal algae done
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B)
Some marine algae done
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C)
Some fresh water algae done
clear
D)
None of the above done
clear
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question_answer5)
The maximum evolution of oxygen is by greatest producers of organic matter [DPMT 1990; CBSE PMT 1989]
A)
Great land area done
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B)
Crops done
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C)
Phytoplankton of sea done
clear
D)
Forests done
clear
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question_answer6)
Chloroplast contains maximum quantity of [BHU 1981; BCECE 2005]
A)
Pyruvic carboxylase done
clear
B)
Hexokinase done
clear
C)
RuDP carboxylase done
clear
D)
None of the above done
clear
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question_answer7)
What is common between photosynthesis and respiration [BHU 1995; AFMC 1995; MP PMT 1996; Haryana PMT 2005]
A)
Cytochrome done
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B)
Light done
clear
C)
\[{{H}_{2}}O\] done
clear
D)
Temperature done
clear
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question_answer8)
Photosynthesis is [JIPMER 1986; CPMT 1988, 90]
A)
Oxidative, exergonic, catabolic done
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B)
Reductive, endergonic, anabolic done
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C)
Reductive, exergonic, anabolic done
clear
D)
Reductive, endergonic, catabolic done
clear
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question_answer9)
Which of the following can photosynthesize at low temperature [BVP 2000]
A)
Bacteria done
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B)
Lichen done
clear
C)
Yeast done
clear
D)
Batrachospermum done
clear
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question_answer10)
The electron transport chain of photosynthetic process is [JIPMER 2002]
A)
In the stroma of the chloroplast done
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B)
Bound to the thylakoid membranes done
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C)
Present in the outer membrane of the chloroplast done
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D)
Present in mitochondria done
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question_answer11)
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy [BHU 2002]
A)
10% done
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B)
20% done
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C)
35% done
clear
D)
42% done
clear
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question_answer12)
Chlorophyll 'a' is found in [CBSE PMT 1992]
A)
All oxygen releasing photosynthetic forms done
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B)
All plants except fungi done
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C)
All higher plants that photosynthesize done
clear
D)
All photosynthetic prokaryotes and eukaryotes done
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question_answer13)
The emperical formula for chlorophyll 'a' is [KCET (Med.) 1994, 2000; AFMC 1994]
A)
\[{{C}_{35}}{{H}_{72}}{{O}_{5}}{{N}_{4}}Mg\] done
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B)
\[{{C}_{55}}{{H}_{70}}{{O}_{6}}{{N}_{4}}Mg\] done
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C)
\[{{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{4}}Mg\] done
clear
D)
\[{{C}_{54}}{{H}_{70}}{{O}_{6}}{{N}_{4}}Mg\] done
clear
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question_answer14)
Which of the following product of Hill's reaction are used in Blackman's reaction [AMU 1989]
A)
NAD, ATP done
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B)
\[ATP,NAD{{H}_{2}}\] done
clear
C)
\[ATP,NADP{{H}_{2}}\] done
clear
D)
ADP, NAD done
clear
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question_answer15)
Chlorophyll 'a' molecule at its carbon atom 3 of the pyrrole ring II has one of the following [CBSE PMT 1996, 97]
A)
Aldehyde group done
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B)
Methyl group done
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C)
Carboxylic group done
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D)
Magnesium done
clear
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question_answer16)
When the two pigment systems absorb light, in what direction does the energy flow between them
A)
PS-I ® PS-II done
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B)
PS-II ® PS-I done
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C)
PS-II ¹ PS-I done
clear
D)
None of the above done
clear
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question_answer17)
In photosynthesis, photolysis of water is used in [CPMT 1998]
A)
Reduction of NADP done
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B)
Oxidation of NADP done
clear
C)
Oxidation of FAD done
clear
D)
None of these done
clear
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question_answer18)
The photosynthetic pigments viz, erythrolable, chlorolable and cyanolable respectively are [JIPMER 2001]
A)
Green, Red, Blue done
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B)
Red, Blue, Green done
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C)
Red, Green, Blue done
clear
D)
Blue, Green, Red done
clear
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question_answer19)
Energy transfer in photosynthesis occurs as [BHU 2003]
A)
Phycoerythrin\[\to \]Phycocyanin\[\to \]Carotenoid\[\to \]Chlorophyll a done
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B)
Chlorophyll b \[\to \]Carotenoid\[\to \]Phycoerythrin \[\to \]Chlorophyll a done
clear
C)
Phycocyanin\[\to \]Phycoerythrin\[\to \]Carotenoid \[\to \]Chlorophyll a done
clear
D)
Chlorophyll\[\to \]Carotenoid \[\to \]Phycocyanin\[\to \]Chlorophyll a done
clear
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question_answer20)
Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following [CPMT 1988]
A)
Fixes\[C{{O}_{2}}\] done
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B)
Traps light energy done
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C)
Synthesizes starch done
clear
D)
Works only in the presence of light done
clear
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question_answer21)
During dark reaction for fixation of carbon, the three carbon atoms of each molecule of 3-phosphoglyceric acid (PGA) are derived from [BHU 1994]
A)
RuBP only done
clear
B)
\[C{{O}_{2}}\]only done
clear
C)
\[RuBP+C{{O}_{2}}\] done
clear
D)
\[RuBP+C{{O}_{2}}+PEP\] done
clear
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question_answer22)
Calvin's cycle is found in [RPMT 1997]
A)
Only\[{{C}_{3}}\]plants done
clear
B)
Only photophillous plants done
clear
C)
All\[{{C}_{4}}\]plants done
clear
D)
All photosynthetic plants done
clear
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question_answer23)
The first intermediate formed during photosynthesis is [CPMT 2000]
A)
Fructose 1, 6-diphosphate done
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B)
Ribulose 1, 5-biphosphate done
clear
C)
Xylulose-5-phosphate done
clear
D)
Phosphoglyceraldehyde done
clear
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question_answer24)
First transitory chemical formed by reaction between \[C{{O}_{2}}\]and \[RuBP\] is [J & K CET (Med.) 2002]
A)
PGAL/GAP done
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B)
2 Carboxy, 3- keto, 1-5 biphospho ribotol done
clear
C)
PGA done
clear
D)
Dihydroxy acetone phosphate done
clear
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question_answer25)
As compared to a \[{{C}_{3}}\] plant, how many additional molecules of ATP are needed for net production of one molecule hexose sugar by \[{{C}_{4}}\]plants [CBSE PMT 2005]
A)
Two done
clear
B)
Six done
clear
C)
Zero done
clear
D)
Twelve done
clear
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question_answer26)
\[{{C}_{4}}\]plants are found among [BHU 1990]
A)
Gramineae only done
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B)
Monocots only done
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C)
Dicots only done
clear
D)
Monocots as well as dicots done
clear
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question_answer27)
An organism that photosynthesizes but do not release any molecular oxygen during the process is
A)
Algal component of a lichen done
clear
B)
Blue-green algae done
clear
C)
Green sulphur bacteria done
clear
D)
Spirochaete done
clear
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question_answer28)
Bacteriochlorophyll differs from chlorophyll 'a' in having [CPMT 1989]
A)
One pyrrol ring with one hydrogen done
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B)
One pyrrol ring with two hydrogen done
clear
C)
One pyrrol ring with three hydrogen done
clear
D)
One pyrrol ring with four hydrogen done
clear
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question_answer29)
In chemosynthesis of\[N{{O}_{2}}\]bacteria, the carbohydrates are formed by
A)
\[N{{O}_{2}}\]and\[{{H}_{2}}O\] done
clear
B)
\[N{{H}_{3}}\]and\[C{{O}_{2}}\] done
clear
C)
\[C{{O}_{2}}\], \[{{H}_{2}}O\]and\[S{{O}_{2}}\] done
clear
D)
Hydrocarbons done
clear
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question_answer30)
The plants which perform the act of photosynthesis\[-{{20}^{o}}C\]are
A)
Palm plants done
clear
B)
Mango plants done
clear
C)
Lichens done
clear
D)
All the above done
clear
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question_answer31)
Photosynthesis will proceed upto
A)
Limit of light done
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B)
Limit of wind done
clear
C)
Limit of moisture done
clear
D)
None of the above done
clear
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question_answer32)
If half of the leaves of a plant are removed, the rate of photosynthesis would be
A)
More and the photosynthetic yield is also more done
clear
B)
More but the photosynthetic yield is less done
clear
C)
Less and the photosynthetic yield is also less done
clear
D)
Less but the photosynthetic yield is more done
clear
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question_answer33)
What effect would occur on photosynthesis, if the amount of oxygen in the atmosphere decreases [RPMT 1997]
A)
Increase in\[{{C}_{3}}\]cycle and decrease in\[{{C}_{4}}\]cycle done
clear
B)
Increase in\[{{C}_{4}}\]cycle and decrease in\[{{C}_{3}}\]cycle done
clear
C)
Increase in\[{{C}_{3}}\]cycle and no change in \[{{C}_{4}}\]cycle done
clear
D)
Increase in\[{{C}_{4}}\]cycle and no change in\[{{C}_{3}}\]cycle done
clear
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question_answer34)
Which is the evidence to show that\[{{O}_{2}}\]is released in photosynthesis comes from water [CPMT 1988]
A)
Isotopic\[{{O}_{2}}\]supplied as\[{{H}_{2}}O\]appears in the\[{{O}_{2}}\]released in photosynthesis done
clear
B)
Isolated chloroplast in water releases\[{{O}_{2}}\] if supplied potassium ferrocyanide or some other reducing agent done
clear
C)
Photosynthetic bacteria use \[{{H}_{2}}S\]and \[C{{O}_{2}}\]to make carbohydrates done
clear
D)
All the above done
clear
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question_answer35)
The first product of\[C{{O}_{2}}\]fixation in Hatch and Slack \[({{C}_{4}})\]cycle in plants is [CPMT 1983; KCET (Med.) 2001]
A)
Formation of oxaloacetate by carboxylation of phosphoenol pyruvate (PEP) in bundle sheath cells done
clear
B)
Formation of phosphoglyceric acid in mesophyll cells done
clear
C)
Formation of bundle sheath cells done
clear
D)
Formation of oxaloacetate by carboxylation of phosphoenol pyruvate (PEP) in the mesophyll cells done
clear
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