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

According to which of the following models, photosynthetic reaction centre and its associated light harvesting pigment molecules of one pigment system form one photosynthetic unit?

Leaf abscission is accomplished through the formation of which of the following cells, usually at the base of the petiole?

Match List-I with List-II and select the correct answer:

List-I	List-II
a. Strictly long-day plant	1. Trifolium repens
b. Strictly short-day plant	2. Hyoscyamus niger
c. Short-long-day plant	3. Pharbitis nil
d. Long-short-day plant	4. Bryophyllum crenatum

Consider the following statements and choose the correct answer:
1. C₄ plants have "Kranz" type of leaf anatomy
2. The vascular bundles in C₃ leaves are surrounded by a layer of bundle sheath cells that contain large number of chloroplast
3. The chloroplast in C₄ leaves are dimorphic
4. In C₄ plants the cells of bundle sheath perform C₄ cycle

A high biological oxygen demand (BOD) indicates

The light energy absorbed by photosynthetic systems could lead to the esterification of inorganic phosphate into ATP, was first demonstrated by

In the inverted ovule, the funicle continues beyond the hilum alongside the body of the ovule forming a ridge called

Consider the following statements regarding the egg (Oosphere) and choose the correct answer:
1. The oosphere contains a female generative cell
2. The upper part of the oosphere membrane is made of cellulose
3. As the maturation of the oosphere nucleus increases its stainability also increases
4. In the cytoplasm of the oosphere, apart from the nucleus certain plastids are also found which manufacture starch found in it

According to chemiosmotic hypothesis, single molecule of ATP is formed from ADP and Pi (inorganic phosphate) when

In which of the following dicots, the nucellus present outside the embryo sac (perisperm) is largely eaten as food?