CBSE Class 10 Science Control and coordination Sure Shot Questions C

Question. How many nerves arise from spinal cord ?
(A) 21
(B) 31
(C) 41
(D) 51
Answer : B

Question. What is called of movement occurred in a plant due to light ?
(A) Thermonasty
(B) Thigmonasty
(C) Yearmonasty
(D) Photonasty
Answer : D

Question. Which of the following activity is controlled by medulla oblongata ?
(A) Maintain balance of the body
(B) Peristalitc movement alimentary canal
(C) Controlling body temperature
(D) Facial expression
Answer : B

Question. What is the weight of an adult person's brain?
(A) 900
(B) 1350
(C) 1500
(D) 2350
Answer : B

Question. The hormone present in higher concentration in fruits and seeds is
(A) Auxin
(B) Gibberellin
(C) Cytokinin
(D) Ethylene
Answer : C

Question. Insulin hormone is secreted by .... gland -
(A) lymphatic gland
(B) Salivary gland
(C) Pancreas
(D) Pitutary gland
Answer : C

Question. A hormone secreted by mixocrine gland :
(A) Paratharmone
(B) Thyroxine
(C) Glucagon
(D) Adrenaline
Answer : C

Question. The outermost layers of meninges is
(A) Myelin membrane
(B) Arachnoid mater
(C) Dura mater
(D) Pia mater
Answer : C

Question. Which hormone is not found in plants ?
(A) Gibberellin
(B) Auxin
(C) Cytokinin
(D) Glucagon
Answer : D

Question. Match each item in Column A with suitable one in column B :
          Column A                          Column B
A. CO₂                         (i) Regulation of body temperature
B. Hypothalamus      (ii) Green House effect
C. Corpus luteum    (iii) Balancing the body
                                  (iv) Secretion of dopamine
                                   (v) Required to plants for respiration
                                 (vi) Secretion of progesterone
(A) A = (v) , B = (iii), C = (iv)
(B) A = (ii), B = (i), C = (iv)
(C) A = (ii), B = (i), C = (vi)
(D) A = (v), B = (ii), C = (vi)
Answer : C

Question. Which part of the human brain is more developed than other mammals ?
(A) Cerebellum
(B) Cerebrum
(C) Sensory lobes
(D) none of the above
Answer : B

Question. In plants “Auxin” is used for ..................
(A) Division of cell.
(B) Ripening of fruits.
(C) Root growth inhibition.
(D) Elongation and division of cell
Answer : D

Question. Which one of the following represents the correct sequence of reflex action ?
(A) Receptor → sensory nerve → motor nerve → spinal cord → muscle
(B) Receptor → motor nerve → spinal cord → sensory nerve → muscle
(C) Receptor → sensory nerve → spinal cord → muscle → motor nerve
(D) Receptor → sensory nerve → spinal cord → motor nerve → muscle
Answer : D

Question. Which of the following is a plant hormone ?
(A) Insulin
(B) Thyroxin
(C) Cytokinin
(D) Oestrogen
Answer : C

Question. Phototropic and geotropic response of a plant is under control of following hormone :
(A) Auxin
(B) Gibberlin
(C) Cytokinin
(D) Ethylene
Answer : A

Question. The part of brain which controls the balance and posture of the body is
(A) Cerebellum
(B) Cerebrum
(C) Pons
(D) Medulla
Answer : A

Question. Which of the following cannot be considered as a receptor ?
(A) Muscle
(B) Ear
(C) Eye
(D) Nose'
Answer : A

Question. Involuntary actions like blood pressure salivation and vomiting are controlled by this part of hind brain-
(A) Medals
(B) Cerebellum
(C) Medulla
(D) Cerebrum
Answer : C

Question. Growth of plants is not promoted by
(A) Cytokinins
(B) Auxins
(C) Gibberellins
(D) Abscisic acid
Answer : D

Question. An injury in accident has disturbed regulation of body temperature, water balance and hunger. The part of brain affected is :
(A) Cerebellum
(B) Cerebrum
(C) Medulla oblongata
(D) Hypothalamus
Answer : D

Question. Spinal cord originates from :
(A) Cerebrum
(B) Cerebellum
(C) Medulla
(D) Pons
Answer : C

Question. If a rat is given an injection of sodium iodide with radioactive iodine, then in which of the following most of iodine would be incorporated ?
(A) Cartilage
(B) Thyroid
(C) Parathyroid
(D) Lymph nodes
Answer : B

Question. Synapse is
(A) gap between two muscle cells
(B) gap between two bones
(C) gap between two neurons
(D) gap between muscle and bone
Answer : C

Question. Which one of the following pairs is not correct ?
(A) The pituitary gland – Adrenalin
(B) Pancreas – Insulin
(C) Ovary – Estrogen
(D) Testis – Testosterone
Answer : A

Question. Find the odd one out
(A) Gonadotropins
(B) Thyrotropins
(C) Corticotropins
(D) Vasopressin.
Answer : D

Question. Which among the following hormones is associated with wilting of leaves ?
(A) Abscisic acid
(B) Gibberellin
(C) Cytokinin
(D) Auxin.
Answer : A

Question. The endocrine gland in which both exocrine and endocrine parts are present :
(A) Pancreas
(B) Adrenal gold
(C) Thyroid
(D) Pitutary gland
Answer : A

Question. Iodine is necessary for the synthesis of which of the following hormones :
(A) Insulin
(B) Adrenaline
(C) Thyroxine
(D) Auxin
Answer : C

Question. Which of the following is a plant hormone ?
(A) Insulin
(B) Thyroxine
(C) Cytokinin
(D) Oestrogen
Answer : C

Question. The nature of nerve impulse is
(A) Chemical
(B) Magnetic
(C) Electrochemical
(D) Electromagnetic
Answer : C

1. The substance that accelerates the growth in the stem is ____.

1. auxin

2. cytokinin

3. enzyme

4. vitamin

2. The cells in our body that can be over a foot long are _____.

1. muscle cells

2. nerve cells

3. bone cells

4. blood cells

3. Learning is related to ______________.

1. hypothalamus

2. thalamus

3. cerebrum

4. cerebellum

4. Male hormone is ________________.

1. Oestrogen

2. progesterone

3. adrenaline

4. testosterone

5. Endocrine glands are those which pour their secretions into _________________.

1. Blood

2. Ducts

3. sinuses

4. any of the above

6. In reflex action, the reflex arc is formed by ____________.

1. muscles - receptor - brain

2. muscles - effector - brain

3. receptor - spinal cord - muscles

4. spinal cord - receptor - muscles

2. Enzymes

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