Free Photosynthesis In Higher Plants (Monthly Quiz: 2) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Chlorophyll a molecule at its carbon atom 3 of the pyrrole ring II has one of the following

(a) carboxylic group

(b) aldehyde group

(c) magnesium

(d) methyl group.

Question-2

Which metal ion is a constituent of chlorophyll?

(a) Copper

(b) Iron

(c) Magnesium

(d) Zinc

Question-3

In a plant cell, which of the following pigments participates directly in the light reactions of photosynthesis?

(a) Chlorophyll b

(b) Chlorophyll a

(c) Chlorophyll d

(d) Carotenoids

Question-4

The diagram below shows three plants with identical leaf surface areas:which of the plants would likely to photosynthesize slowest and fastest.

(a) Z slowest, X fastest

(b) Y slowest, Z fastest

(c) X slowest, Z fastest

(d) Z slowest, Y fastest

Question-5

In photosynthesis, hydrogen is transferred from the light reactions to dark reactions by –

(a) DNA

(b) DPN

(c) ATP

(d) NADP

Question-6

Stroma in the chloroplasts of higher plant contains

(a) Ribosomes

(b) Light-independent reaction enzymes

(c) Chlorophyll

(d) Light-dependent reaction enzymes

Question-7

Tropical plant like sugarcane show high efficiency of $CO_2$ fixation because of

(a) Hatch and Slack cycle

(b) Calvin cycle

(c) EMP pathway

(d) TCA cycle

Question-8

$C_{4}$ plants are adapted to –

(a) Temperate climate

(b) Hot and dry climate

(c) Cold and dry climate

(d) Hot and humid climate

Question-9

In a chloroplast the highest number of protons are found in

(a) intermembrane space

(b) stroma

(c) antennae complex

(d) lumen of thylakoids.

Question-10

Pigment-containing membranous extensions in some cyanobacteria are :

(a) Pneumatophores

(b) Basal bodies

(c) Chromatophores

(d) Heterocysts

Question-11

During the light stage of photosynthesis, the photoactivated pigment removes an electron from the hydroxylation derived from the water molecule. The fate of the free hydroxyl radical is that it

(a) is used to raise the activation level of chlorophyll by donating a positive charge.

(b) is broken down into oxygen and a free radical of hydrogen.

(c) is used to produce adenosine triphosphate from adenosine diphosphate.

(d) reduces carbon dioxide to sugar.

Question-12

Dark reaction in photosynthesis is called so because

(a) it does not depend on light energy.

(b) it can occur in dark also

(c) it cannot occur during day light

(d) it occurs more rapidly at night

Question-13

Read the following four statements, (i), (ii), (iii) and (iv) and select the right option having both correct statements.Statements :

1. Z scheme of light reaction takes place in presence of PSI only.
2. Only PSI is functional in cyclic photophosphorylation.
3. Cyclic photophosphorylation results into synthesis of ATP and $NADPH_2$.
4. Stroma lamellae lack PSII as well as NADP.

(a) (ii) and (iv)

(b) (ii) and (iii)

(c) (i) and (ii)

(d) (iii) and (iv)

Question-14

A process that creates an important difference between $C_{3} & C_{4}$ plants is called____________.

(a) photosynthesis

(b) Calvin benson cycle

(c) photorespiration

(d) transpiration

Question-15

Assertion:
Dark reaction is controlled by temperature.
Reason:
Dark reaction is enzymatic reaction.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-16

Find the method used to light the candle in bell jar experiment without disturbing the setup.

(a) Creating a hole in bell jar

(b) Removing bell jar slowly and light the candle

(c) Using hand lens

(d) Through a sudden replacement by another enlightened candle

Question-17

In photosynthesis, the light-independent reactions take place at

(a) photosystem II

(b) thylakoid lumen

(c) stromal matrix

(d) photosystem I.

Question-18

Read the following statements and select the correct ones.

1. PS I is involved in non-cyclic photophosphorylation only.
2. PS II is involved in both cyclic and non-cyclic photophosphorylation
3. Stroma lamellae membranes possess PS I only, whereas grana lamellae membranes possess both PS I and PS II.

(a) (i) only

(b) (iii) only

(c) (ii) only

(d) (i), (ii) and (iii)

Question-19

Phosphoenol pyruvate (PEP) is the primary $CO_2$ acceptor in

(a) $C_4$ plants

(b) $C_3 and C_4$ plants

(c) $C_2$ plants

(d) $C_3$ plants.

Question-20

Assertion:
Current availability of $CO_2$ in atmosphere is limiting to $C_4$ plant.
Reason:
$C_3$ plants more efficiently fix $CO_2$ than $C_4$ plants.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.