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Control and Coordination

Control and Coordination

17 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following pairs are incorrectly matched?

a. Growth of roots towards the earth - Positive hydrotropism
b. Bending of roots towards water - Positive hydrotropism
c. Growth of pollen towards the ovule - Positive phototropism
d. Winding of tendrills towards the support - Negative thigmotropism

  1. Only a and b
  2. Only a and c
  3. Only b and c
  4. Only c and d
  5. Only b and d
Question 2 Multiple Choice (Single Answer)

Which of the following is a part of the forebrain?

  1. Cranium
  2. Cerebrum
  3. Hypothalamus
  4. Pons
  5. Cerebellum
Question 3 Multiple Choice (Single Answer)

Which of the following parts of the brain help(s) in maintaining posture and balance of the body?

  1. Cerebellum
  2. Midbrain
  3. Medulla
  4. Cerebrum
  5. Meninges
Question 4 Multiple Choice (Single Answer)

Which of the following parts of the brain has motor areas that send instructions to the muscles?

  1. Medulla
  2. Pons
  3. Cerebrum
  4. Cerebellum
  5. Hypothalamus
Question 5 Multiple Choice (Single Answer)

The growth of pollen tube towards the ovule during the process of fertilisation in a flower is an example of

  1. negative chemotropism
  2. positive chemotropism
  3. positive hydrotropism
  4. negative hydrotropism
  5. positive thigmotropism
Question 6 Multiple Choice (Single Answer)

Which of the following parts in a sense organ are sensitive to a particular type of stimulus?

  1. Effectors
  2. Axons
  3. Receptors
  4. Dendrites
  5. Connectors
Question 7 Multiple Choice (Single Answer)

Nerves are wires that are distributed all over the human body. Which of the following statements is/are correct about nerves?

a. There are mainly two types of nerves.
b. Cranial nerves connect all parts of the body to the brain.
c. Visceral nerves connect the internal organs of the body to the spinal cord, though some also connect to brain.

  1. Only a
  2. Both a and b
  3. Only b
  4. Both b and c
  5. Only c
Question 8 Multiple Choice (Single Answer)

Abscission in a plant is the

  1. wilting and falling of leaves
  2. opening of stomata
  3. elongation of shoots
  4. fruit growth
  5. phototropic and geotropic responses of the plant
Question 9 Multiple Choice (Single Answer)

Which of the following statements is/are incorrect about endocrine glands?

a. Endocrine glands secrete hormones into a duct or tube.
b. Endocrine glands secrete chemical messengers.
c. Hormones produced by endocrine glands reach the concerned body part through the blood.

  1. Only a
  2. Both a and b
  3. Only b
  4. Both b and c
  5. Only c
Question 10 Multiple Choice (Single Answer)

Diabetes in a person occurs due to

  1. excess of insulin
  2. deficiency of insulin
  3. excess of thyroxine
  4. deficiency of thyroxine
  5. excess of parathormone
Question 11 Multiple Choice (Single Answer)

Auxins are responsible for which of the following?

a. Phototropic and geotropic responses in plants
b. Speeding up growth in stems, but slowing down growth in roots
c. Promoting the opening and closing of stomata

  1. only a and b
  2. only a and c
  3. only b and c
  4. a, b and c
  5. only c
Question 12 Multiple Choice (Single Answer)

Which of the following statements is correct about axon?

  1. Axon picks up the nerve impulses from receptors.
  2. Axon is the junction through which impulses are passed through to another neuron.
  3. Axon is made of fats and proteins.
  4. Axon is the shortest fibre on the cell body of a neuron.
  5. Axon is the longest fibre on the cell body of a neuron.
Question 13 Multiple Choice (Single Answer)

Thyroid glands make a hormone called thyroxine. Where are these glands located?

  1. On top of the kidneys
  2. Attached to the wind pipe of the body
  3. In the lower part of the neck and upper part of chest
  4. Just below the brain
  5. Below the stomach
Question 14 Multiple Choice (Single Answer)

Which of the following statements is/are true about the spinal cord?

a. Spinal cord is a cylindrical structure that is surrounded by membranes called meninges.
b. Spinal cord begins in continuation with pons and extends downwards.
c. Spinal cord is concerned with the conduction of muscular impulses to and from the brain.

  1. Only a
  2. Both a and b
  3. Only b
  4. Both b and c
  5. Only c
Question 15 Multiple Choice (Single Answer)

Which of the following glands secrete the hormone that controls the development of bones and muscles?

  1. Pituitary glands
  2. Pineal glands
  3. Hypothalamus glands
  4. Thyroid glands
  5. Thymus glands
Question 16 Multiple Choice (Single Answer)

Which of the following statements is/are correct?

a. Gibberellin hormone is involved in absission of plants.
b. Auxins speed up growth in stems and roots of plants.
c. Cytokinins promote the opening of stomata.

  1. Only a
  2. Both a and b
  3. Only b
  4. Both b and c
  5. Only c
Question 17 Multiple Choice (Single Answer)

Which of the following phytohormones are involved in the growth of plants?

a. Abscisic acid
b. Auxins
c. Cytokinins
d. Gibberellins

  1. a, b, c and d
  2. b, c and d
  3. a, b and d
  4. a, c and d
  5. a, b and c
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