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

Consider the following statements regarding malacophyllous xerophytes and choose the correct answer:
1. Malacophyllous xerophytes are characterised by reduced stem and succulent leaves
2. Succulent leaves are usually large in size and are often more or less circular in shape
3. Succulent leaves possess prominent water storage tissue consisting of thin-walled parenchymatous cells
4. The amount of chlorophyll gradually increases from periphery to the centre in the leave

According to Stopes (1907), the xerophytism in the coniferae is due to the presence of

Organisms which spend most of their time on the underside of the air-water interface and obtain much of their food from within water are termed

The pyramid of biomass may be inverted in case of

During anaerobic respiration, carbon dioxide evolution takes place without any oxygen uptake, giving an RQ to

Rhizobium fixes atmospheric nitrogen to ammonia in the presence of the red pigment called

The most extensive and common method of reproduction in runners, stolons, stem and root tubers, dormant apices, offsets etc., is

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

List-I (Diseases)	List-II (Symptoms)
a. Blights	1. Sudden death of blossoms, young leaves and twigs, usually before they are fully developed
b. Pustules	2. Failure of chlorophyll development caused by mineral deficiencies
c. Chlorosis	3. Unequal development of chlorophyll in different parts of a leaf, caused chiefly by viruses
d. Mosaics	4. Blisters, formed by the rupture of the surface tissues of a host by spore masses or fruiting bodies of patbogenic fungi

The exoenzymes secreted by the cell in inactive from are known as

Who among the following defined conservation "as the process which is concerned with the use, preservation, and proper management of the natural resources of the earth and their protection from destructive influences, misuse, decay, fire or waste"?