The idea of two pigment systems in light reaction of photosynthesis was given by
Options
(a) Arnon (b) Hill (c) Blackman (d) Emerson
Correct Answer:
Emerson
Explanation:
Emerson et al (1957) said that […]
The formula of chlorophyll-a is
Options
(a) C₅₆H₇₀O₆N₄ Mg (b) C₅₅H₇₂O₆N₄ Mg (c) C₅₅H₇₂O₅N₄ Mg (d) C₅₂H₇₀O₅N₄ Mg
Correct Answer:
C₅₅H₇₂O₅N₄ Mg
Explanation:
Chlorophyll ‘a’ has molecular formula of C₅₅H₇₂O₅N₄ Mg . Its […]
The form of pigment which promotes germination is
Options
(a) P₇₆₀ (b) P₇₃₀ (c) P₆₅₀ (d) P₇₆₀ & P₇₃₀ & P₆₅₀
Correct Answer:
P₆₅₀
Explanation:
No explanation available. Be the first to write […]
The fixation and reduction of CO₂ occur in presence of
Options
(a) ATP (b) ATP and NADPH (c) NADPH, chlorophyll and water (d) ATP, NADPH and light
Correct Answer:
ATP and NADPH
Explanation: […]
The first step of photosynthesis is
Options
(a) excitation of electron of chlorophyll by a photon of light (b) formation of ATP (c) attachment of CO₂ to 5 carbon sugar (d) ionisation of […]
The first step in dark reaction of photosynthesis is
Options
(a) formation of ATP (b) ionization of water (c) attachment of CO₂ to a pentose sugar (d) excitement of electron of chlorophyll by […]
The first stable product of photosynthesis in C₄ plants is
Options
(a) phosphoglyceric acid (b) ribulose-1-5-bisphosphate (c) PGAL (d) malic acid
Correct Answer:
malic acid
Explanation:
In C₄ plants the leaf cells have […]
The first stable compound in Hatch Slack pathway is
Options
(a) phosphoglyceric acid (b) lactic acid (c) oxalo acetic acid (d) none of the above
Correct Answer:
oxalo acetic acid
Explanation:
No explanation […]
The first stable compound formed during C₃ cycle is
Options
(a) glycolate (b) formaldehyde (c) phosphoglyceric acid (d) phosphoglyceraldehyde
Correct Answer:
phosphoglyceric acid
Explanation:
In C₃ plants, the carbon dioxide combines with ribulose […]
The First reaction in photorespiration is
Options
(a) carboxylation (b) oxygenation (c) decarboxylation (d) phosphorylation
Correct Answer:
oxygenation
Explanation:
While doing studies on plant productivity it was found that a considerable proportion of […]
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