Plant Anatomy and Physiology MCQ question and answer with solution | Biology Gk MCQs

In which of the following stone fruits, when crosses are made where the early ripening varieties are taken as female parents, the developed embryos are abortive and seeds are not formed?

Small bead-like structures inside the ovary of a flower are called

Which one of the following statements is correct?

Apples are generally wrapped in waxed paper to

Consider the following statements regarding xerophytes and choose the correct answer:
1. The root system is very well developed in proportion to the shoot
2. In plants, such as Agave, the cells of mesophyll are very loosely packed
3. In majority of xerophytes the leaves are thick, fleshy with water storage tissue
4. In Opuntia, the function of photosynthesis is taken up by the stem itself

Consider the following statements and choose the correct answer:
1. The process of soil formation is so slow that soil may be considered as a non-renewable resource
2. Soil pollution may be the direct effect of dumping and disposal of wastes, application of agrochemicals or the indirect result of air pollution
3. Pesticides increase the population and number of species of living organisms which facilitate the structure and fertility of the soil
4. Several pesticides or their degradations are absorbed by the plants

Assertion (A) Hormones are also called growth adjusters.
Reason (R) Hormones promote or inhibit plant growth.

Water will move out of the plant instead of being absorbed if

IAA was first isolated from

The energy in a quantum may be determined from the wavelength of radiation, the energy being greater