Photosynthesis in Higher Plants · Biology · NEET
MCQ (Single Correct Answer)
Find the incorrect statement(s) about photosynthesis from the following:
A. The water splitting complex is associated with PSI.
B. $\mathrm{C}_4$ plants use the $\mathrm{C}_3$ pathway of $\mathrm{CO}_2$ fixation as the main biosynthetic pathway.
C. In $\mathrm{C}_4$ plants, photorespiration does not occur.
D. $\mathrm{C}_3$ plants exhibit 'Kranz' anatomy.
E. ATP synthesis in chloroplast occurs through chemiosmosis.
Choose the answer from the options given below:
The enzyme required for carboxylation in the Calvin cycle is
How many ATP and NADPH molecules are required to make one molecule of glucose through the Calvin pathway?
Which of the following statements about RuBisCO is true?
Match List-I with List-II
| List - I |
List - II |
||
|---|---|---|---|
| A | Chlorophyll a | I | Yellow-green |
| B | Chlorophyll b | II | Yellow |
| C | Xanthophylls | III | Blue-green |
| D | Carotenoids | IV | Yellow to Yellow-orange |
Choose the option with all correct matches.
Which of the following are required for the light reaction of Photosynthesis?
A. $$\mathrm{CO}_2$$
B. $$\mathrm{O}_2$$
C. $$\mathrm{H}_2 \mathrm{O}$$
D. Chlorophyll
E. Light
Choose the correct answer from the options given below:
Which one of the following products diffuses out of the chloroplast during photosynthesis?
Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option.
How many molecules of ATP and NADPH are required for every molecule of $$\mathrm{CO}_2$$ fixed in the Calvin cycle?
Which of the following are required for the dark reaction of photosynthesis?
A. Light
B. Chlorophyll
C. $$\mathrm{CO}_2$$
D. ATP
E. NADPH
Choose the correct answer from the options given below:
Given below are two statements:
Statement I: In $$\mathrm{C}_3$$ plants, some $$\mathrm{O}_2$$ binds to $$\mathrm{RuBisCO}$$, hence $$\mathrm{CO}_2$$ fixation is decreased.
Statement II: In $$\mathrm{C}_4$$ plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.
In the light of the above statements, choose the correct answer from the options given below:
Match List - I with List - II.
| List - I | List - II | ||
|---|---|---|---|
| (A) | Chlorophyll a | (I) | Yellow to yellow orange |
| (B) | Chlorophyll b | (II) | Yellow green |
| (C) | Xanthophyll | (III) | Blue green |
| (D) | Carotenoid | (IV) | Yellow |
Choose the correct answer from the options given below :
Given below are two statements :
Statement I : RuBisCO is the most abundant enzyme in the world.
Statement II : Photorespiration does not occur in C$$_4$$ plants.
In the light of the above statements, choose the most appropriate answer from the options given below :
Which out of the following statements is incorrect?
How many ATP and NADPH2 are required for the synthesis of one molecule of Glucose during Calvin cycle?
The reaction centre in PS II has an absorption maxima at
When one CO2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used in the reduction phase?
Identify the correct statements regarding chemiosmotic hypothesis:
(a) Splitting of the water molecule takes place on the inner side of the membrane.
(b) Protons accumulate within the lumen of the thylakoids.
(c) Primary acceptor of electron transfers the electrons to an electron carrier.
(d) NADP reductase enzyme is located on the stroma side of the membrane.
(e) Protons increase in number in stroma.
Choose the correct answer from the options given below:
Given below are two statements:
Statement I : The primary CO2 acceptor in C4 plants is phosphoenolpyruvate and is found in the mesophyll cells.
Statement II : Mesophyll cells of C4 plants lack RuBisCo enzyme.
In the light of the above statements, choose the correct answer from the options given below:
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
(A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.
(B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.
(C) Stamens in flowers of Gloriosa and Petunia are polyandrous.
(D) Symbiotic nitrogen fixers occur in free-living state also in soil.
How many of the above statements are right?
In which of the following options correct words
for all the three blanks A, B and C are indicated?Statements :
(i) Z scheme of light reaction takes place in presence of PSI only.
(ii) Only PSI is functional in cyclic photophosphorylation.
(iii) Cyclic photophosphorylation results into synthesis of ATP and NADPH2.
(iv) Stroma lamellae lack PSII as well as NADP.