In photosynthesis oxygen comes from

In photosynthesis, oxygen comes from

Options

(a) soil (b) atmosphere (c) water (d) carbon dioxide

Correct Answer:

water

Explanation:

During non-cyclic photophosphorylation photolysis of water, release of O₂ and formation of NADPH takes place, […]

In photosystem antennae comprises of all pigments except

In photosystem, antennae comprises of all pigments except

Options

(a) chlorophyll-a (b) chlorophyll-b (c) carotenoids (d) xanthophyll

Correct Answer:

chlorophyll-a

Explanation:

Light Harvesting Complex includes: Antenna Molecule-The antenna molecule absorb light of various wavelengths […]

In plants water supply is due to

In plants, water supply is due to

Options

(a) osmosis (b) imbibition (c) guttation (d) adhesion force

Correct Answer:

osmosis

Explanation:

Root hairs function as tiny osmotic systems. Each root hair has a thin […]

In prokaryota ribosomes present is

In prokaryota, ribosomes present is

Options

(a) 70 S (b) 10 S (c) 80 S (d) 20 S

Correct Answer:

70 S

Explanation:

No explanation available. Be the first to write the explanation for […]

In Krebs cycle energy is

In Kreb’s cycle, energy is

Options

(a) energy is stored in the form of ATP (b) energy is stored in the form of ADP (c) energy is liberated from ATP (d) energy is liberated […]

In maize PEP carboxylation reaction takes place in

In maize, PEP -carboxylation reaction takes place in

Options

(a) epidermis (b) bundle sheath cells (c) mesophyll cells (d) bundle sheath and cortex

Correct Answer:

mesophyll cells

Explanation:

No explanation available. Be the first […]

In mammals the digestion of starch starts from

In mammals, the digestion of starch starts from

Options

(a) mouth (b) oesophagus (c) stomach (d) duodenum

Correct Answer:

mouth

Explanation:

The digestion of starch (carbohydrate) is initiated in mouth due to the action […]

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