STD 11 - 11. photosynthesis in higher plants — NEET STD 11 Science — Question

Coralloid roots have a symbiotic association with

Which hormone is concerned chiefly with cell division in plants

Maximum nutritional diversity is found in the group

Which phytohormone promotes falling of old leaves whereas inhibits falling of young leaves?

Which one of the following factors is biotic

In Opuntia, the function of phyotosynthesis is carried out by

Initiation of polypeptide chain in eukaryotic protein synthesis is induced by

Which of the following statement correct for auxin ?
(i) Spraying juvenile conifers with auxin 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 helps to initiate rooting in stem cuttings.
(vi) It promotes flowering e.g., in pineapples.

Photophosphorylation is the