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Plant Physiology

Description: Plant Physiology-3
Number of Questions: 15
Created by:
Tags: 5051ss Growth in Plants Plant Growth Plant Tissues Cell: Structure and Function Respiration Respiration in Plants
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When the movement of plant organ is stimulated by contact with an object, it is termed as

  1. geotropism

  2. heliotropism

  3. haptotropism

  4. hydrotropism

  5. none of the above


Correct Option: C
Explanation:

When the movement of plant organs is stimulated by contact with an object, it is termed as haptotropism.

Shade loving plants are known as

  1. heliophytes

  2. sciophytes

  3. halophytes

  4. xerophytes

  5. none of these


Correct Option: B
Explanation:

Shade-loving plants are known as sciophytes.

During guttation, water is lost through

  1. lenticel

  2. hydrathode

  3. veins

  4. stoma

  5. none of these


Correct Option: B
Explanation:

During guttation, water is lost through hydrathode.

Which of the following is responsible for breakdown of fats in the biological cells?

  1. Spherosomes

  2. Peroxysomes

  3. Microbodies

  4. Glyoxysomes

  5. None of these


Correct Option: D
Explanation:

Glyoxysomes are responsible for breakdown of fats in biological cells.

The process in which water is split during photosynthesis is called

  1. photolysis

  2. plasmolysis

  3. hydrolysis

  4. hemolysis

  5. none of the above


Correct Option: A
Explanation:

The process in which water is split during photosynthesis is called photolysis.

Fat synthesis is associated with

  1. ribosomes

  2. peroxisomes

  3. spherosomes

  4. dictyosomes

  5. none of these


Correct Option: C
Explanation:

Fat synthesis is associated with spherosomes.

Plasmalemma is composed of

  1. protein

  2. fats

  3. lipoproteins

  4. carbohydrates

  5. all of the above


Correct Option: C
Explanation:

Plasmalemma is composed of lipoproteins.

Virus free clone can be obtained from a virus infected plant by

  1. meristem culture

  2. hot water treatment

  3. stem cutting

  4. foliar application of auxin

  5. none of the above


Correct Option: A
Explanation:

Virus-free clone can be obtained from a virus-infected plant by meristem culture.

Which of the following is not absolutely essential for culturing tissues and cells?

  1. Macronutrients

  2. Micronutrients

  3. Agar

  4. Vitamins

  5. All of the above


Correct Option: C
Explanation:

Agar is not absolutely essential for culturing tissues and cells.

The movement exhibited by tentacles of Drosera is

  1. siesmonasty

  2. thigmonasty

  3. chemotropic

  4. chemotaxis

  5. none of these


Correct Option: B
Explanation:

The movement exhibited by tentacles of Drosera is thigmonasty.

In exponential growth phase, there is

  1. slow growth

  2. maximum growth

  3. static growth

  4. zig-zag growth

  5. none of these


Correct Option: B
Explanation:

In exponential growth phase, there is maximum growth.

Which of the following statements is true for glycolysis?

  1. Starch is converted into glucose.

  2. Protein is converted into glucose.

  3. Glucose is converted into fructose.

  4. Glucose is converted into pyruvic acid.

  5. None of these


Correct Option: C
Explanation:

In glycolysis, glucose 6 phosphate is converted into fructose 6 phosphate.

Within the cell, the site of respiration is

  1. golgi body

  2. mitochondrion

  3. ribosomes

  4. nucleus

  5. none of these


Correct Option: B
Explanation:

Within the cell, the site of respiration is mitochondrion. 

What is the end product of glycolysis?

  1. ATP

  2. Water

  3. Pyruvic acid

  4. Acetyl-CoA

  5. None of these


Correct Option: C
Explanation:

The end product of glycolysis is pyruvic acid.

In hollow hearted plants

  1. root will die first

  2. shoot will die first

  3. neither root nor shoot will die

  4. root and shoot will die at the same time

  5. none of the above


Correct Option: C
Explanation:

In hollow hearted plants, neither root nor shoot will die.

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