NEET Daily Practice Papers - Biology - Photosynthesis
355 Questions/Answers
For synthesis of one glucose molecule, the number of ATP required are
Answer:
Explanation:
“Impure air is purified in the presence of light and green plants” was first said by
Which of the following cell organelles can survive out of the cell?
In hydrophytes, the rate of carbon assimilation is
For each molecule of glucose formed in plants, the number of molecule of ATP and NADPH2 required are respectively
The role of light in plants is that it controls
The process in which excess energy is lost by light waves is called
Blue part of the spectrum of light is absorbed maximum by
A pigment which absorbs red and far-red light is
Which one is the precursor of chlorophyll?
Which pigment is absent in chloroplast?
Which one of the following statements is correct for chlorophyll a?
For chlorophyll formation, a plant needs
The enzymes enolase catalyses the formation of
Calvin cycle is investigated by the use of
Which of the following fixes CO2 in carbohydrates?
Photosynthetic bacteria do not contain
Which of the following is capable of performing photosynthesis at high temperature i.e. at 50° C?
What will be the effect on photosynthesis, if boiled water is used in one of its experiment?
Which of the following have high CO2 compensation point?
Which of the following isotope of carbon was used by Calvin to trace the path of carbon in photosynthesis or The isotope of carbon used extensively for studies in photosynthesis is
The C4 plants are different from C3 plants with reference to the
In C4 pathway or C4 photosynthesis carbon dioxide fixation occurs in chloroplast of
Which of the following crop plant is very efficient convertor of solar energy and whose net productive value ranges from 2 kg to 4 kg/m2 or even higher
How many molecules of glycine is required to release one CO2 molecule in photorespiration
Variegated leaves of a plant were supplied with radioactive carbon dioxide (nothing14 CO2) during an experiment. Leaf X was kept in the dark and leaf Y was kept in the light. At the end of the experiment the radioactivity in the leaves was measured and found to be as shown on the diagram below. What is the most likely explanation for the level of radioactivity found in the yellow zone of Y?
Engelmann's experiment with Spirogyra demonstrated that
Pastur's effect is
The plants growing in dark show yellowing in leaves and elongated internodes, this condition is called as
The shade loving plants are called
The example of sun–drassers are
Ribulose phosphate is a
Which of the following has been used in photosynthetic researches
A granum is made up of
Solar energy is converted into ATP in
Osmophilic granules are present in
Which of the following equation can be more appropriate for photosynthesis
How much percentage of absorbed water is used in photosynthesis
The starch is insoluble in water even than it is stored in potato in more quantity
The plant Cuscuta shows maximum photosynthesis in
Which branch of Botany is concerned with the study of photosynthesis?
Approximate amount of water on earth which split by photosynthesis once every 2 million years is
For the process of photosynthesis all except one of the following items are essential. Point out the exception.
In angiosperms, synthesis of chlorophyll occurs in presence of
The ultraviolet radiations from the sun cause reactions that produce
Which of the following is not required in the synthesis of carbohydrates
Which one of the following is due energy currency of the cell or The common immediate source of energy in cellular activity is
The process of photosynthesis takes place in
Light energy is converted into chemical energy in the presence of
Intensity of light can be measured by
Phylloclade, the modified photosynthetic organ is a
Importance of photosynthesis is due to
Algae float in the water during day time and sink during night time because
Quantasomes are found in
Photosynthesis is a process in which
Aerobic atmosphere is maintained by
What is the unique process which has supported life on this planet
Total amount of the dry weight of photosynthate produced by all type of plants per annum is
How many molecules of water are needed by a green plant to produce one molecule of hexose/ reduce 6 molecules of CO2
What is the common value of PQ (photosynthetic quotient) of a leaf
Which group is not alike?
The detectable end product of photosynthesis is
Sugar produced in photosynthesis is converted into starch in
The gas released in photosynthesis is
The most vital process for the existence of life on earth is
Plants are known as purifiers of air due to process of
The use of solar cooker by man is copying of which one by the following processes
Which process is related with photosynthesis
The full expansion of NADP is
Make suitable pair: (A) Emerson effect (B) Hill reaction (C) Calvin's cycle (D) Hatch and Slack cycle
In photosynthesis, energy from light reaction to dark reaction is transferred in the form of
Dimorphic chloroplasts are present in
In photosynthesis, plants
Emerson effect explain the phenomenon of
Match the sites in column I with the processes in column II and choose the correct combination from the options
Suspension of isolated thylakoids in culture medium containing CO2 and H2O does not produce hexose due to absence of which of the following
Photosynthetically least efficient radiation is
Quantasome are present in
The first event in photosynthesis is
During the course of photosynthesis
Which of the following is initiating step in photosynthesis?
The first step in photosynthesis is
Chlorophyll molecules has the structure like
Chlorophyll ‘e’ is generally present in
The light phase of photosynthesis is called
Ferrodoxin contain
Which type of phosphorylation takes place in photosynthesis?
Unidirectional flow of electrons in photophosphorylation takes place in
In light reaction of photosynthesis, chlorophyll is subjected to
Photosynthetic pigments in chloroplast are embedded in membrane of
Ferredoxin is a component of
Which of the following pigment is yellow in colour
Which of the following is the non-polar part of chlorophyll
Which of the following wavelength occur in red part of the spectrum
Which of the following product of photosynthesis is produced first
Which of the following is black–yellow pigment of carrot roots?
Chlorophyll molecule (PS–II) when excited and electron so released passes first into
Solarisation is
Elements required for photolysis of water
How many molecules of water should be photolysed to form a NADPH2 molecule?
Which one of the following concerns photophosphorylation? (a) AMP Inorganic ATP Light energy + PO4 → (b) ADP AMP ATP + → (c) ADP Inorganic ATP Light energy + PO4 → (d) ADP+ Inorganic PO4 → ATP
Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants? (a) Violet and blue (b) Blue and green (c) Green and red (d) Red and violet
Photosystem I and Photosystem II are found in (a) Stroma of chloroplast (b) Grana of chloroplast (c) Matrix of mitochondria (d) Inner membrane of mitochondria
Number of chlorophyll arranged per reaction centre in the light harvesting complex are (a) 100 (b) 200 (c) 300 (d) 400
The light absorbed by the chlorophyll is at the wavelength of (a) 400 nm (b) 500 nm (c) 600 nm (d) 660 nm
Phytol chain is present in (a) Carotenoids (b) Haemoglobin (c) Chlorophyll (d) Phycocyanin
O2 evolution is directly associated with (a) PS I (b) PS II (c) Phytochrome (d) Phycocyanin
ATP formation in photosynthesis is known as (a) Phosphorylation (b) Photophosphorylation (c) Oxidative phosphorylation (d) None of the above
Hill reaction occurs in (a) High altitude plants (b) Total darkness (c) Absence of water (d) Presence of ferredoxin
Plants adapted to low light intensity have (a) More extended root system (b) Leaves modified to spines (c) Larger photosynthetic unit size than the sun plants (d) Higher rate of CO2 fixation than the sun plants
Photosynthetically active radiation (PAR) represents the following range of wavelength (a) 340–450 mm (b) 400–700 mm (c) 500–600 mm (d) 450–950 mm
Photolysis of water by isolated chloroplasts was demonstrated by (a) Robin Hill (b) Van Niel (c) Liebig (d) Calvin
Non-cyclic photophosphorylation involves (a) PS-I or PS-II (b) PS-I only (c) PS-II only (d) Stroma matrix
The reaction centre is located in (a) Chlorophyll 'b' (b) Carotene (c) Xanthophyll (d) Chlorophyll 'a'
Cyclic photophosphorylation produces (a) NADPH (b) ATP + NADPH (c) ATP (d) ATP + NADPH + O2
In noncyclic photophosphorylation, the pigment molecule first excited is (a) P680 (b) P700 (c) Chlorophyll–b (d) Xanthophyll
The value of Q10 for photosynthesis is (a) 4 (b) 6 (c) 7 (d) 2
ATP is produced during (a) Cyclic photosphosphorylation (b) Non-cyclic photosphosphorylation (c) Both (d) None
In non-cyclic photophosphorylation, there are (a) 24 H+ (b) 36 H+ (c) 12 H+ (d) 32 H+
The light energy passes in the form of (a) Photo ions (b) Photons (c) Photosomes (d) All the above
Photophosphorylation differs from oxidative phosphorylation in
Which of the following occurs first in the light reaction
The radiation energy of light is converted to chemical energy and stored as
Photosynthesis of light reaction occur in
Which of the following method is responsible for ATP production by green plants cells in the presence of sunlight
Dark reaction of photosynthesis is called
In normal chloroplast, the percentage of chlorophyll is
Which of the enzyme is involved in the conversion of 3PGA to 3PGAL
The number of carbon atoms is five in
Sedohaptulose is a carbohydrate having
First stable product of Calvin cycle has
Phosphatase enzymes in C3 cycle participate in
In dark reaction, first reaction is the
Which one of the following is the product of dark reaction of photosynthesis
In C4 plants, CO2 combine with PEP in presence of
CO2 joins the photosynthetic pathway during
Dark reaction of photosynthesis is called so because
The initial enzyme of Calvin cycle is
During photosynthesis when PGA is changed into phosphoglyceraldehyde, which of the following reaction occur
Ribulose diphosphate carboxylase enzyme catalyses the carboxylation reaction between
Which of the following is required for conversion of 3PGAL and dihydroxy acetone phosphate to fructose 1, 6 diphosphate?
Which of the following is the first compound that accepts carbon dioxide during dark phase of photosynthesis?
Radioactive C14 is given to CO2 and released to atmosphere. This CO2 is taken by RuBP in a C3 plant. First radioactive C14 is seen in which compound?
The family in which many plants are C4 type
The enzymes of dark reaction in C4 plants are found in
Which of the chloroplast does not contain grana?
Conversion of oxaloacetic acid into malic acid is
Which of the following enzyme is responsible for the conversion of oxaloacetic acid into malic acid?
Which of the following is required for transformation of oxaloacetic acid into malic acid?
In succulent xerophytes, there is accumulation of malic acid in night, this path of CO2 metabolism is called
In C4 plants mesophyll cells are connected with bundle sheath cells with the help of
Which of the plants can show CAM cycle
Which of the following is shown by CAM plants
The energy wastage occurs during
In case of C4 pathway
Which one is a C4 plant
C4 plants are also known as
In C4 plants, Calvin cycle occurs in
Tropical plant like sugarcane show high efficiency of CO2 fixation because of
C4 photosynthesis does not occur in
Who studied the ultrastructure of bundle sheath?
What is meant by fret membrane?
Which of the following is correct for photosynthesis?
Which of the following may show photosynthesis in moonlight?
The maximum evolution of oxygen is by greatest producers of organic matter?
Chloroplast contains maximum quantity of?
What is common between photosynthesis and respiration?
Photosynthesis is
Which of the following can photosynthesize at low temperature?
The electron transport chain of photosynthetic process is
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy?
Chlorophyll ‘a’ is found in
The emperical formula for chlorophyll ‘a’ is
Which of the following product of Hill's reaction are used in Blackman's reaction?
Chlorophyll ‘a' molecule at its carbon atom 3 of the pyrrole ring II has one of the following
When the two pigment systems absorb light, in what direction does the energy flow between them?
In photosynthesis, photolysis of water is used in
The photosynthetic pigments viz, erythrolable, chlorolable and cyanolable respectively are
Energy transfer in photosynthesis occurs as
Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following?
Who studied the ultrastructure of bundle sheath?
What is meant by fret membrane?
Which of the following is correct for photosynthesis?
Which of the following may show photosynthesis in moonlight?
The maximum evolution of oxygen is by greatest producers of organic matter
Chloroplast contains maximum quantity of
What is common between photosynthesis and respiration?
Photosynthesis is
Which of the following can photosynthesize at low temperature?
The electron transport chain of photosynthetic process is
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy?
Chlorophyll ‘a’ is found in
The emperical formula for chlorophyll ‘a’ is
Which of the following products of Hill's reaction are used in Blackman's reaction?
Chlorophyll ‘a' molecule at its carbon atom 3 of the pyrrole ring II has one of the following
When the two pigment systems absorb light, in what direction does the energy flow between them?
In photosynthesis, photolysis of water is used in
The photosynthetic pigments viz, erythrolable, chlorolable and cyanolable respectively are
Energy transfer in photosynthesis occurs as
Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following?
Who studied the ultrastructure of bundle sheath?
What is meant by fret membrane?
Which of the following is correct for photosynthesis?
Which of the following may show photosynthesis in moonlight?
The maximum evolution of oxygen is by greatest producers of organic matter
Chloroplast contains maximum quantity of
What is common between photosynthesis and respiration?
Photosynthesis is
Which of the following can photosynthesize at low temperature?
The electron transport chain of photosynthetic process is
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy
Chlorophyll ‘a’ is found in
The emperical formula for chlorophyll ‘a’ is
Which of the following product of Hill's reaction are used in Blackman's reaction
Chlorophyll ‘a' molecule at its carbon atom 3 of the pyrrole ring II has one of the following
When the two pigment systems absorb light, in what direction does the energy flow between them?
In photosynthesis, photolysis of water is used in
The photosynthetic pigments viz, erythrolable, chlorolable and cyanolable respectively are
Energy transfer in photosynthesis occurs as
Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following
The value of Q10 for photosynthesis is
ATP is produced during
In non-cyclic photophosphorylation, there are
The light energy passes in the form of
Photophosphorylation differs from oxidative phosphorylation in
Which of the following occurs first in the light reaction
The radiation energy of light is converted to chemical energy and stored as
Photosynthesis of light reaction occur in
Which of the following method is responsible for ATP production by green plants cells in the presence of sunlight
Dark reaction of photosynthesis is called
In normal chloroplast, the percentage of chlorophyll is
Which of the enzyme is involved in the conversion of 3PGA to 3PGAL
The number of carbon atoms is five in
Sedohaptulose is a carbohydrate having
First stable product of Calvin cycle has
Phosphatase enzymes in C3 cycle participate in
In dark reaction, first reaction is the
Which one of the following is the product of dark reaction of photosynthesis
In C4 plants, CO2 combines with PEP in presence of
CO2 joins the photosynthetic pathway during
Who studied the ultrastructure of bundle sheath?
What is meant by fret membrane?
Which of the following is correct for photosynthesis?
Which of the following may show photosynthesis in moonlight?
The maximum evolution of oxygen is by greatest producers of organic matter
Chloroplast contains maximum quantity of
What is common between photosynthesis and respiration?
Photosynthesis is
Which of the following can photosynthesize at low temperature?
The electron transport chain of photosynthetic process is
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy?
Chlorophyll 'a' is found in
The empirical formula for chlorophyll ‘a’ is
Which of the following product of Hill's reaction are used in Blackman's reaction?
Chlorophyll ‘a' molecule at its carbon atom 3 of the pyrrole ring II has one of the following
When the two pigment systems absorb light, in what direction does the energy flow between them
In photosynthesis, photolysis of water is used in
The photosynthetic pigments viz, erythrolable, chlorolable and cyanolable respectively are
Energy transfer in photosynthesis occurs as
Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following
Who studied the ultrastructure of bundle sheath?
What is meant by fret membrane?
Which of the following is correct for photosynthesis?
Which of the following may show photosynthesis in moonlight?
The maximum evolution of oxygen is by greatest producers of organic matter
Chloroplast contains maximum quantity of
What is common between photosynthesis and respiration?
Photosynthesis is
Which of the following can photosynthesize at low temperature?
The electron transport chain of photosynthetic process is
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy?
Chlorophyll ‘a’ is found in
The emperical formula for chlorophyll ‘a’ is
Which of the following product of Hill's reaction are used in Blackman's reaction
Chlorophyll ‘a' molecule at its carbon atom 3 of the pyrrole ring II has one of the following
When the two pigment systems absorb light, in what direction does the energy flow between them?
In photosynthesis, photolysis of water is used in
The photosynthetic pigments viz, erythrolable, chlorolable and cyanolable respectively are
Energy transfer in photosynthesis occurs as
Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following?
Who studied the ultrastructure of bundle sheath?
What is meant by fret membrane?
Which of the following is correct for photosynthesis?
Which of the following may show photosynthesis in moonlight?
The maximum evolution of oxygen is by greatest producers of organic matter:
Chloroplast contains maximum quantity of:
What is common between photosynthesis and respiration?
Photosynthesis is:
Which of the following can photosynthesize at low temperature?
The electron transport chain of photosynthetic process is:
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy?
Chlorophyll ‘a’ is found in:
The empirical formula for chlorophyll ‘a’ is:
Which of the following product of Hill's reaction are used in Blackman's reaction?
Chlorophyll ‘a’ molecule at its carbon atom 3 of the pyrrole ring II has one of the following:
When the two pigment systems absorb light, in what direction does the energy flow between them?
In photosynthesis, photolysis of water is used in
The photosynthetic pigments viz, erythrolable, chlorolable and cyanolable respectively are
Energy transfer in photosynthesis occurs as
Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following?
Who studied the ultrastructure of bundle sheath?
What is meant by fret membrane?
Which of the following is correct for photosynthesis?
Which of the following may show photosynthesis in moonlight?
The maximum evolution of oxygen is by greatest producers of organic matter:
Chloroplast contains maximum quantity of
What is common between photosynthesis and respiration?
Photosynthesis is
Which of the following can photosynthesize at low temperature?
The electron transport chain of photosynthetic process is:
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy?
Chlorophyll ‘a’ is found in
The empirical formula for chlorophyll ‘a’ is
Which of the following product of Hill's reaction are used in Blackman's reaction?
Chlorophyll ‘a' molecule at its carbon atom 3 of the pyrrole ring II has one of the following
When the two pigment systems absorb light, in what direction does the energy flow between them?
In photosynthesis, photolysis of water is used in
The photosynthetic pigments viz, erythrolable, chlorolable and cyanolable respectively are
Energy transfer in photosynthesis occurs as
Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following?
Which one is false about kranz anatomy?
C4 plant shows efficiency even in
Source of CO2 for photosynthesis during day in CAM plant is
In maximum plants stomata open during day and closed in night. Its exception is
.............is a CAM plant
In prokaryotes, the photosynthetic lamellae remain in
All life on earth derive its energy directly or indirectly from sun except
Chromatophores are absent in
Photosynthetic bacteria and blue-green algae have molecular component of their light–receptor systems in
In the bacterial photosynthesis, hydrogen donor is
Chlorophyll a is not found in
Leptothrix is a
Green bacteria contains
Bacterial photosynthesis takes place in
Which of the following carries out anoxygenic photosynthesis
Which of the following bacteria grow on isopropyl alcohol and convert it into acetone
What is the bye–product of bacterial photosynthesis
Which of the following photosynthetic bacteria have both PS–I and PS–II
Which wavelength of light carry out photosynthesis in bacteria
Photosynthetic bacteria have pigments in
Who studied the ultrastructure of bundle sheath?
What is meant by fret membrane?
Which of the following is correct for photosynthesis?
Which of the following may show photosynthesis in moonlight?
The maximum evolution of oxygen is by greatest producers of organic matter
Chloroplast contains maximum quantity of
What is common between photosynthesis and respiration?
Photosynthesis is
Which of the following can photosynthesize at low temperature?
The electron transport chain of photosynthetic process is
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy
Chlorophyll ‘a’ is found in
The emperical formula for chlorophyll ‘a’ is
Which of the following product of Hill's reaction are used in Blackman's reaction
Chlorophyll ‘a' molecule at its carbon atom 3 of the pyrrole ring II has one of the following
Publish Year
August 2025
Last Update
August 17, 2025
Language
English
Level
expert
Total Questions
355
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