Plant Anatomy and Physiology MCQ question and answer with solution

11

Net movement of water from a dilute to a concentrated solution through a selectively permeable membrane is called

A) Diffusion B) Dispersion C) Osmosis D) Absorption

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Answer & Solution

Answer: Option C

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12

Felling of which of the following plants, before start of conservation programmes in world, resulted in invasion by Pinus excelsa and Picea smithiana?

A) Quercus semecarpifolia B) Pinus gerardiana C) Cedrus deodara D) Lantana camara

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Answer: Option A

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13

The omnivores, which feed both on plants as well as animals, fall in which of the following categories?

A) Primary consumers B) Secondary consumers C) Tertiary consumers D) Micro-consumers

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Answer: Option B

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14

The hard seed coat may be responsible for dormancy by

A) Preventing gaseous exchange B) Preventing the absorption of water C) Mechanically restricting the growth of the embryo D) All of the above

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Answer: Option D

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15

The most efficient devernaIizing factor, however, is

A) Water B) High temperature C) Light D) Air pressure

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Answer: Option B

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16

In some places very small units of various types of vegetation occur repeatedly which are caused by changes in the environment. Those small units are called

A) Biomes B) Microstands C) Niches D) None of the above

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Answer: Option B

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17

Match List-I with List-II and select the correct answer:

List-I	List-II
a. Legume	1. A dehiscent dry fruit produced from a monocarpellary, superior ovary which dehisces from one suture only
b. Follicle	2. A dehiscent dry fruit produced from a bicarpellary, syncarpous, superior ovary which is unilocular but appears bilocular due to false septum
c. Siliqua	3. A dehiscent fruit produced from a monocarpellary, superior ovary which dehisces from both the sutures into two valves
d. Capsule	4. A dehiscent dry fruit produced from syncarpous, superior or inferior ovary which dehisces along two or more lines of suture in various ways

A) a-2, b-1, c-4, d-3 B) a-3, b-1, c-2, d-4 C) a-3, b-2, c-4, d-1 D) a-2, b-1, c-3, d-4

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Answer: Option B

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18

The loose smut of wheat is a

A) Localised disease B) Permanent disease C) Systemic disease D) None of the above

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Answer: Option C

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19

The osmotic pressure of a given solution can be calculated by using which of the following relationship?

A) Molar concentration of solution × solution constant × absolute temperature B) Molar concentration of solution × solution constant / absolute temperature C) Molar concentration of solution + solution constant / absolute temperature D) Absolute temperature × solution constant / molar concentration of solution

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Answer: Option A

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20

What is the formula of glucose?

A) C₆H₂₂O₁₁ B) C₆H₁₀O₅ C) C₆H₁₂O₆ D) C₆H₆O₆

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Answer: Option C

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Plant Anatomy and Physiology MCQ question and answer with solution | Biology Gk MCQs