Photosynthesis in Higher Plants MCQs | Photosynthesis in Higher Plants Short Questions and Answers

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Questions
1 In which of the following process, the light energy is converted into chemical energy
A Digestive action
B Respiration
C Photosynthesis
D Fermentation

Answer:Photosynthesis
2 Fixation of one CO2 molecule through Calvin cycle requires:
A 1 ATP and 2NADPH2
B 2ATP and 2NADPH2
C 3ATP and 2NADPH2
D 2ATP and 1NADPH2

Answer:3ATP and 2NADPH2
3 Algae and other submerged plants bount in water during day time and sink at night, because
A They come upto enjoy some time
B They lose weight at night
C They become bouyant due to accumulation of O2 as a result of photosynthesis
D They become light due to food material accumulation

Answer: They become bouyant due to accumulation of O2 as a result of photosynthesis
4 Structurally, chlorophyll a and b are different as
A Chl a has a methyl group and Chl b has an aldehyde group
B Chl a has an aldehyde group and Chl b has a methyl group
C Chl a has an ethyl group and Chl b has an aldehyde group
D Chl a has a carboxyl group and Chl b has an aldehyde group

Answer:Chl a has a methyl group and Chl b has an aldehyde group
5 Chlorophyll in chloroplasts is located in
A Grana
B Pyrenoid
C Stroma
D Both grana and stroma

Answer: Grana
6 Photosynthesis is most active in
A Sun light
B Yellow light
C Red light
D Green light

Answer: Red light
7 The specific characteristic of C4-plants is:
A bulliform cells
B isobilateral leaf
C kranz anatomy
D parallel veins configuration

Answer: kranz anatomy
8 In the half-leaf experiment of photosynthesis, KOH solution is used because
A It provides O2 to the leaf
B It provides moisture to the leaf
C It helps in CO2 fixation
D It absorbs CO2

Answer:It absorbs CO2
9 Which one occurs both during cyclic and noncyclic modes of photophosphorylation?
A Involvement of both PS I and PS II
B Formation of ATP
C Release of O2
D Formation of NADPH

Answer: Formation of ATP
10 It is only the green part of the plant, which takes part in
A Respiration
B Transpiration
C Photosynthesis
D Osmosis

Answer: Photosynthesis
11 Chlorophyll ‘a’ molecule at its carbon atom 3 of the Pyrrole ring II has one of the following:
A methyl group
B aldehyde group
C carboxyl group
D magnesium

Answer: methyl group
12 During photochemical reaction of photosynthesis
A liberation of O2 takes place
B Formation of ATP and NADPH2 take place
C Liberation of O2, formation of ATP, and NADPH2 takes place
D Assimilation of CO2 takes place

Answer: Liberation of O2, formation of ATP, and NADPH2 takes place
13 Which of the following is not a significance of photosynthesis ?
A Glucose synthesis for most of consumer
B Increase in green house effect
C Provides O2 for synthesis of ozone umbrella
D Provides O2 for cell respiration

Answer: Increase in green house effect
14 During the process of photosynthesis the raw materials used are :
A Glucose
B Chlorophyll
C Starch
D CO2 and H2O

Answer: CO2 and H2O
15 ADP + iP = ATP in grana is called :
A Phosphorylation
B Oxidative phosphorylation
C Photophosphorylation
D Photolysis

Answer: Photophosphorylation
16 For photosynthesis (i.e. for the synthesis of organic matter), the green plants need only
A Light
B Chlorophyll
C CO2
D All of these

Answer:All of these
17 For synthesis of a molecule of glucose, the requirement of ATP and NADPH is respectively
A 15 and 10
B 33 and 22
C 12 and 8
D 18 and 12

Answer: 18 and 12
18 Formation of ATP in photosynthesis and respiration is an oxidation process which utilizes the energy from
A Cytochromes
B Ferredoxin
C Electrons
D Carbon dioxide

Answer:Electrons
19 Grana refer to
A Stacks of thylakoids in plastids of higher plants
B A constant in quantum equation
C Glycolysis of glucose
D By-product of photosynthesis

Answer: Stacks of thylakoids in plastids of higher plants
20 Hill’s reaction takes place in
A Dark
B Light
C Dark and light both
D At any time

Answer:Light

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