Free Photosynthesis In Higher Plants (Weekly Quiz: 3) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Dark reaction of photosynthesis is called so because it

(a) Does not require light energy

(b) Can also occur in dark

(c) Cannot occur during day time

(d) Occurs more rapidly at night

Question-2

Calvin cycle is termed as dark reaction because it

(a) Occurs in dark

(b) Is not dependent on light for $CO_2$ fixation in stroma

(c) Is by convention only

(d) Requires light

Question-3

The first step for initiation of photosynthesis will be

(a) photolysis of water

(b) ATP formation

(c) excitement of chlorophyll molecules due to absorption of light

(d) glucose formation.

Question-4

All living forms on earth depend on _________ for energy.

(a) Hydrothermal vent

(b) Sun

(c) Volcanic eruption

(d) Moon

Question-5

During photorespiration, the oxygen consuming reaction(s) occur in

(a) stroma of chloroplasts

(b) stroma of chloroplasts and peroxisomes

(c) stroma of chloroplasts and mitochondria

(d) grana of chloroplasts and peroxisomes.

Question-6

In the leaves of C₄ plants, malic acid formation during CO₂ fixation occurs in the cells of

(a) bundle sheath

(b) epidermis

(c) phloem

(d) mesophyll.

Question-7

An experiment using two leaves, a variegated leaf or a leaf that was covered with black paper and one that was exposed to light on testing these leaves for starch shows that photosynthesis occurs only in _________ part of leaf in the_________ of sunlight

(a) green, presence

(b) non-green, presence

(c) non-green, absence

(d) green, absence

Question-8

During photorespiration, the oxygen-consuming reaction(s)occur in

(a) grana of chloroplasts and peroxisomes

(b) stroma of chloroplasts and peroxisomes

(c) stroma of chloroplasts

(d) stroma of chloroplasts and mitochondria

Question-9

The wavelength of light absorbed by Pr form of phytochrome is

(a) 720 nm

(b) 680 nm

(c) 620 nm

(d) 640 nm

Question-10

Which one is the correct summary equation of photosynthesis?

(a) $C_{6}H_{12} O_{6} + 6O_{2} + 6H_{2}O → 6CO_{2} + 12H_{2}O$ + energy

(b) $C_{6}H_{12}O_{6} + 6O_{2} → 6CO_{2} + 6H_{2}O$ + energy

(c) $6CO_{2} + 6H_{2}O → ↖ {\text"Light"} ↙ {\text"Chlorophyll"} 6H_{2}O + C_{6}H_{12}O_{6}$

(d) $6CO_{2} + 12H_{2}O → ↖{\text"Light"} ↙ {\text"Chlorophyll"} 6O_{2} + C_{6}H_{12}O_{6} + 6H_{2}O$