Plant Anatomy And Physiology - Study Mode

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[#571] Match the structures given in column (A) with the functions given in column (B) . Column A Column B a. Stomata 1. Absorption of water b. Xylem 2. Transpiration c. Root hairs 3. Transport of food d. Phloem 4. Transportion of water

(A) a-1, b-2, c-3, d-4

(B) a-2, b-4, c-1, d-3

(C) a-1, b-2, c-4, d-3

(D) a-1, b-3, c-2, d-4

Correct Answer

(B) a-2, b-4, c-1, d-3

[#572] Match List-I with List-II and select the correct answer: List-I List-II a. Exclusive species 1. Species occurring frequently in one kind of community and sometimes also in others b. Selective species 2. Species which occur in any community without showing preference to any particular kind of community c. Preferential species 3. Species which occur in several kinds of communities but more abundantly in some d. Indifferent species 4. Species completely restricted to one kind of community

(A) a-2, b-3, c-4, d-1

(B) a-3, b-2, c-4, d-1

(C) a-4, b-1, c-3, d-2

(D) a-4, b-3, c-2, d-1

Correct Answer

(C) a-4, b-1, c-3, d-2

[#573] The first clearly stated hypothesis on photoperiodism was given in 1920 by

(A) Garner and Allard

(B) Mitchell and Munch

(C) Hamner and Mutt

(D) Knott and Borthwicks

Correct Answer

(A) Garner and Allard

[#574] Which of the following is an accessory pigment?

(A) Chlorophyll-a

(B) Chlorophyll-c

(C) Grana

(D) Hemozoin

Correct Answer

(B) Chlorophyll-c

[#575] The minimum number of pigment molecules capable of acting cooperatively in a photochemical act to evolve one molecule of O 2 or to reduce one molecule of CO 2 is known as

(A) Quantum unit

(B) Quantasome unit

(C) Photosynthetic unit

(D) Photochemical unit

Correct Answer

(C) Photosynthetic unit