Plant Anatomy And Physiology - Study Mode

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[#291] The structural unit that is employed in place of seed is called

(A) Pistule

(B) Propagule

(C) Radicle

(D) Plumule

Correct Answer

(B) Propagule

[#292] Which of the following diseases is easily recognisable by the presence of large knob-like sooty swellings or boils known as the smut galls or ball tumours?

(A) Com smut

(B) Covered smut

(C) Black rust

(D) Early blight

Correct Answer

(A) Com smut

[#293] in Kreb's citric acid cycle, the initial acceptor of hydrogens released from succinate is

(A) GTP

(B) ATP

(C) FAD

(D) NADH

Correct Answer

(C) FAD

[#294] Consider the following statements and choose the correct answer: 1. In angiosperms the pollination consists of transference of the pollen grains from the anther to the stigma either by self-pollination or by cross-pollination 2. Pollen grain is shed from the pollen sac in the two-celled stage 3. The exine of each microspore grows out into a tube, called the pollen tube 4. The growth of pollen tube is stimulated by sugary substances secreted by the stigma

(A) Only 1, 2 and 3 are true

(B) Only 1, 3 and 4 are true

(C) Only 1, 2 and 4 are true

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

Correct Answer

(C) Only 1, 2 and 4 are true

[#295] Consider the following statements and choose the correct answer: 1. Sexual reproduction is brought about by highly specialized antheridia and archegonia 2. An antheridium is a unicellular, short-stalked, club-shaped body 3. Funaria hygrometrica is a dioecious moss 4. The sex organs of Funaria are borne in clusters on the tips of the branches

(A) Only 1, 2 and 3 are true

(B) Only 2 and 4 are true

(C) Only 1 and 4 are true

(D) Only 1, 3 and 4 are true

Correct Answer

(C) Only 1 and 4 are true