Free Photosynthesis In Higher Plants (Weekly Quiz: 1) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Nine-tenth of all photosynthesis of world (85- 90%) is carried out by

(a) large trees with millions of branches and leaves

(b) chlorophyll containing ferns of the forest

(c) algae of the ocean

(d) scientists in the laboratories

Question-2

In $C_4$ plants, $CO_2$ combines with

(a) phosphoenol pyruvate

(b) phosphoglyceric acid

(c) phosphoglyceraldehyde

(d) ribulose diphosphate.

Question-3

Which is the first $CO_2$ acceptor enzyme in $C_4$ plants?

(a) RuDP carboxylase

(b) RuBisCO

(c) Phosphoric acid

(d) PEP- carboxylase

Question-4

Study the pathway given below. Which of the following option is correct ?

S.No	P	Q	R
(a)	$C_{3}$ acid	Reduction	$C_{4}$ acid
(b)	Fixation	$C_{4}$ acid	Regeneration
(c)	$C_{4}$ acid	Decarboxylation	$C_{3}$ acid
(d)	Carboxylation	$C_{3}$ acid	Reduction

(a) (a)

(b) (b)

(c) (c)

(d) (d)

Question-5

The process which makes major difference between $C_3$ and $C_4$ plants is

(a) Photorespiration

(b) Calvin cycle

(c) Respiration

(d) Glycolysis

Question-6

Which of the following does not participate in the process of photosynthesis?

(a) Green algae

(b) Red algae

(c) Brown algae

(d) None of these

Question-7

The first step of photosynthesis is

(a) excitation of electron of chlorophyll by a photon of light

(b) attachment of $CO_{2}$ to 5 carbon sugar

(c) formation of ATP

(d) ionisation of water

Question-8

Chemosynthetic bacteria obtain energy from

(a) infrared rays

(b) sun

(c) organic substances

(d) inorganic chemicals

Question-9

Assertion:
To make one molecule of glucose 6 turns of the Calvin cycle required.
Reason:
One turn of Calvin cycle fix one molecule of $CO_2$.

(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-10

Which element is located at the centre of the porphyrin ring in chlorophyll ?

(a) Calcium

(b) Potassium

(c) Magnesium

(d) Manganese