STD 11 - 6. Anatomy flowering plants — NEET STD 11 Science — Question

The two waste products of oxidation in cells are

Assertion : In angiosperms, the conduction of water is more efficient because their xylem has vessels.
Reason : Conduction of water by vessel elements is an active process with energy supplied by xylem parenchyma rich in mitochondria

Which is not correct for vessels ?

Oxidative phosphorylation refers to

Which of the following statements are correct for gibberellins ?
(i) Spraying juvenile conifers with GAs hastens the maturity period, thus leading to early seed production.
(ii) Promotes bolting in beet, cabbages and many plants with rosette habit.
(iii) It helps to produce new leaves, chloroplasts in leaves, lateral shoot growth and adventitious shoot formation.
(iv) Their ability to cause an increase in length of axis is used to increase the length of grapes stalks.
(v) It help to initiate rooting in stem cuttings.
(vi) It promote flowering eg. in pineapples.

The cell which develops into endosperm, results from the fusion of

Enzyme can be made functionless by

It is used to initiate flowering and for synchronizing fruit-set in pineapples.

Mesocarp in coconut is