Plant Anatomy And Physiology - Study Mode

Show All Answers

[#756] Consider the following statements regarding the importance of diffusion and choose the correct answer: 1. The exchange of gases takes place by the principle of dependent diffusion 2. The process of diffusion is involved in transpiration of water vapours 3. The ions are absorbed by the simple diffusion during passive salt uptake 4. Diffusion is an effective means of transport of substances over a very short distance and helps in the translocation of food materials

(A) 1, 3 and 4 are true

(B) 1 and 4 are true

(C) 1, 2 and 3 are true

(D) 2, 3 and 4 are true

Correct Answer

(D) 2, 3 and 4 are true

[#757] Which of the following pairs type of nutrient - nutrient is correct? 1. Macronutrient - Iron 2. Micronutrient - Calcium

(A) Only 1

(B) Both 1 and 2

(C) Neither 1 nor 2

(D) Only 2

Correct Answer

(D) Only 2

[#758] Consider the following statements and choose the correct answer: 1. The C 4 plants can absorb CO 2 even from a much low CO 2 concentration when the C 3 plants fail to avail it 2. The C 4 plants require less energy to fix CO 2 as compared to C 3 plants 3. C 4 plants are better adapted to tropical and desert areas where sunlight is more intense and the growing season is longer 4. Maize is a C 4 plant

(A) 1, 2 and 3 are true

(B) 2, 3 and 4 are true

(C) 1, 3 and 4 are true

(D) Only 2 is true

Correct Answer

(C) 1, 3 and 4 are true

[#759] Who among the following wasthe first embryologist, in 1830, to trace the pollen tube of Yucca gloriosa from the stigma to the micropyle?

(A) Amici

(B) Johnson

(C) Campbell

(D) Bambacioni

Correct Answer

(A) Amici

[#760] In seeds containing large amounts of fat relative to carbohydrate, the respiratory quotient (RQ) values during germination will be considerably

(A) Greater than 1.0

(B) Equal to 1.0

(C) Equal to 4.0

(D) Less than 1.0

Correct Answer

(D) Less than 1.0