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

Father of Indian ecology is

Stilt roots which grow obliquely from basal nodes of culm stem and acting as brace are found in

The pineapple which under natural conditions is difficult to blossom has been made to produce fruits throughout the year by application of

Megasporangia arise from the ....

Which of the following statements are correct from given statement ?
(i) Glucose is the favoured substrate for respiration. All carbohydrates are usually first converted into glucose before they are used for respiration.
(ii) Other substrates like fats, proteins can also be respired but they do not enter the respiratory pathway at the first step.
(iii) If fatty acids were to be respired they would first be degraded to acetyl CoA and enter the pathway.
(iv) Glycerol would enter the pathway after being converted to PGAL.
(v) The proteins would be degraded by proteases and the individual amino acids and it enter the pathway at some stage within the Krebs' cycle or even as pyruvate or acetyl CoA.
(vi) Because the respiratory pathway is involved in both anabolism and catabolism it consider as an amphibolic pathway rather than as a catabolic one.

GMO technology is useful for

Which of the following statements are true for stamen and microsporangium ?
(i) A typical angiosperm anther is bilobed, dithecous.
(ii) The microsporangia develop further and become pollen sacs.
(iii) Microsporangium generally surrounded by four wall layers.
(iv) The epidermis, endothecium and middle layers of anther perform the function of protection.
(v) The innermost wall layer of anther is the tapetum and it nourishes the developing pollen grains.
(vi) Cells of the tapetum generally have one nucleus.

In coleoptile tissue, auxin is

In algae, the photosynthetic pigments are present in