Hill reaction occurs in:

• high altitude plants

• total darkness

• absence of water

• presence of ferricyanide

Which one of the following pairs is correctly matched?

• Rhizobium - Parasite in the roots of leguminous plants

• Mycorrhizae - Mineral uptake from soil

• Yeast - Production of biogas

• Myxomycetes - The disease ring worm

Assertion : Rhoeo leaves contain anthocyanin pigments in epidermal cells.

Reason : Anthocyanins photosynthetic pigments.

• If both Assertion and Reason are true and the reason is the correct explanation of the assertion

• If both Assertion and Reason are true but the reason is not the correct explanation of the assertion

• If Assertion is true statement but Reason is false

• If both Assertion and Reason are false statements

Stomata open at night and closes during day in

• xerophytes

• gametophytes

• mesophytes

• mesophytes

During photosynthesis

• both CO₂ and water get oxidized

• both CO₂ and water get reduced

• water is reduced and CO₂ is oxidized

• CO₂ gets reduced and water gets oxidized

216.

The order of occurrence of the cytochromes in the F₁ particle is

• cyt-b, cyt-c, cyt-a-cyt a₃

• cyt-c, cyt-b, cyt-a-cyt a₃

• cyt-a, cyt-b, cyt-c-cyt a₃

• cyt-a₃, cyt-a, cyt-c-cyt b

Chemiosmotic theory of ATP synthesis, in the chloroplast and mitochondria, is based on :

• proton gradient

• membrane potential

• accumulation of K ions

• accumulation of Na ions

Photorespiration in C₃ -plants starts from :

• glycine

• glycerate

• phosphoglycolate

• phosphoglycerate

Which of the following is photophosphorylation?

• Production of ATP from ADP

• Production of NADP

• Synthesis of ADP from ATP

• Production of PGA

From which of the following, photosynthetic autotrophs receive their energy?

• Heat

• Inorganic chemicals

• Organic chemicals

• Light