STD 11 - 5. Morphology flowering plants — NEET STD 11 Science — Question

Assertion: When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as competitive inhibitor.
Reason: The inhibitor competes with the substrate for the substrate binding site of the enzyme and their result is substrate cannot bind and as a result, the enzyme action declines.

What is not seen during mitosis in somatic cells?

Which of the following statements is incorrect?

Which of the following statements are correct for effect of Carbon dioxide concentration on photosynthesis ?
(i) Increase in concentration up to 0.05 per cent can cause an increase in CO₂ fixation rates; beyond this the levels can become damaging over longer periods
(ii) The C₃ and C₄ plants respond differently to CO₂ concentrations
(iii) At low light conditions neither C₃ nor C₄ responds to high CO₂ conditions
(iv) At high light intensities, both C₃ and C₄ plants show increase in the rates of photosynthesis
(v) C₄ plants show saturation at about 360 µ1L^-1 while C₃ responds to increased CO₂ concentration and saturation is seen only beyond 450 µ1L^-1
(vi) Current availability of CO₂ levels in atmosphere is limiting to the C₃ plants

The bacterial genome contains

If the age pyramid of a population is bell shaped, it will show

Leaf fall occurs on abscission layer is formed when the content of

In Bryophyta the adult plant body is

Identify the wrong statements