Plant Anatomy And Physiology - Study Mode

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[#161] Consider the following statements. 1. Sweet orange plant is propagated by grafting technique. 2. Jasmine plant is propagated by layering technique. Which of the statement (s) given above is/are correct?

(A) Only 1

(B) Only 2

(C) Both 1 and 2

(D) Neither 1 nor 2

Correct Answer

(C) Both 1 and 2

[#162] The mechanism by which the genetic constitution of a plant influences parthenocarpic development is due to the change in the

(A) Temperature of the surrounding atmosphere

(B) Balance of auxins in the fruit tissues

(C) Quantity of water provided to the plant regularly

(D) Duration of fertilization from flower to flower

Correct Answer

(B) Balance of auxins in the fruit tissues

[#163] The indirect ecological factors include

(A) Temperature

(B) Humidity of air

(C) Soil nutrients

(D) Soil organisms

Correct Answer

(D) Soil organisms

[#164] Which one of the following will happen if the medium surrounding the cell has a higher concentration than the cell?

(A) The cell will gain water

(B) The cell will die

(C) There will be no change

(D) The cell will lose water

Correct Answer

(D) The cell will lose water

[#165] Consider the following statements regarding hormones. 1. It is an organic compound which control the growth of plant. 2. It is special kind of organic compound found in small amount which control metabolic activity and growth of plant. 3. Its different concentration produce different organs. Which of the statements given above is/are true about hormones ?

(A) 1 and 2

(B) 1, 2 and 3

(C) Only 2

(D) Only 1

Correct Answer

(B) 1, 2 and 3