Plant Anatomy And Physiology - Study Mode

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[#806] When the variants of an enzyme are within the same species of an organism they are called

(A) Intraspecific variants

(B) Interspecific variants

(C) Ontogenetic variants

(D) Both A and C

Correct Answer

(D) Both A and C

[#807] The external appearance of the community which may be described on the basis of dominant plants, density, height, colour etc. of the plants is known as

(A) Physiognomy

(B) Phenology

(C) Periodicity

(D) Aspection

Correct Answer

(A) Physiognomy

[#808] In which of the following a strip of definite width and of length suitable for studying vegetation is marked out and plotted, then plants occurring along the strip are recorded?

(A) Line transect

(B) Belt transect

(C) Chart quadrat

(D) Experimental quadrat

Correct Answer

(B) Belt transect

[#809] Consider the following statements regarding the symptoms of loose smut of wheat and choose the correct answer: 1. The smutted ears from the boot leaves a little earlier than the healthy ones 2. All the ovaries and other floral parts including the awns and rachics are converted into masses of smut spores 3. The spores of each spikelet are covered by a thin greyish or silvery membrane 4. The ear is generally completely destroyed

(A) Only 2 and 4 are true

(B) Only 1, 2 and 3 are true

(C) Only 1 and 3 are true

(D) 1, 2, 3 and 4 are true

Correct Answer

(C) Only 1 and 3 are true

[#810] The most mobile mineral in the plant body is

(A) Nitrogen

(B) Carbon

(C) Iron

(D) Phosphorus

Correct Answer

(D) Phosphorus