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Biology 10 Chapte 12 - Coordination and Control - 22
1.
When the production of thyroxin is decreased, which of the following is caused?
a) Hypothyroidism
b) Goitre
c) Diabetes mellitus
d) Hyperthyroidism
2.
What are the symptoms of hypothyroidism?
a) Shivering of hands
b) Slowing down of heartbeat
c) Frequent sweating
d) Increase in energy production
3.
When the production of thyroxin is increased, which of the following is caused?
a) Hypothyroidism
b) Diabetes mellitus
c) Goitre
d) Hyperthyroidism
4.
What are the symptoms of hyperthyroidism?
a) All are correct
b) Increased heart-beat
c) Increase in energy production
d) Frequent sweating
5.
What is the hormone called that is produced by thyroid gland?
a) Vasopressin
b) Calcitonin
c) Parathormone
d) Adrenaline
6.
What is the function of calcitonin?
a) Promotes the absorption of calcium from blood into bones
b) Decreases the level of calcium ions in blood
c) Both b and c
d) Maintain the balance of salts and water in blood
7.
Calcitonin and parathormone regulate the level of ..................ions in the blood?
a) Calcium
b) Bromine
c) Iodine
d) Fluorine
8.
How many glands are situated on the posterior side of thyroid gland?
a) Two
b) Five
c) Four
d) Three
9.
What is the hormone called that is produced by parathyroid gland?
a) Adrenaline
b) Vasopressin
c) Parathormone
d) Calcitonin
10.
What is the function of parathormone?
a) Increases the level of calcium ions in blood
b) Increased heart-beat
c) Absorption of calcium from blood into bones
d) Increase in energy production
11.
When there is increased production of parathormone, the bones become................?
a) Hard
b) Soft
c) Brittle
d) Rotten
12.
If there is deficiency in the production of parathormone, blood calcium level falls. To what it leads?
a) Hyperthyroidism
b) Goitre
c) Tetany
d) Diabetes mellitus
13.
What is the main effect of Tetany?
a) Decreases the level of calcium ions in blood
b) Promotes the absorption of calcium from blood into bones
c) Affects the functioning of muscles
d) All are correct
14.
Tetany is marked by sharp flexion of the.................?
a) Ankle
b) All are correct
c) Wrist
d) Joints
15.
How many adrenal glands are situated above kidneys?
a) Two
b) Four
c) Three
d) Five
16.
How many parts of adrenal glands are there?
a) Four
b) Five
c) Three
d) Two
17.
Which hormone adrenal gland secretes?
a) Epinephrine
b) Adrenaline
c) Adrenaline
d) Both b and c
18.
When epinephrine or adrenaline is secreted?
a) During adult age
b) None of these
c) During stress condition
d) All the time
19.
Which hormone is termed as ‘emergency hormone’?
a) Adrenaline
b) Somatotrophin
c) Parathormone
d) Thyroxin
20.
What is the hormone called that is secreted by adrenal cortex?
a) Epinephrine
b) Adrenaline
c) Corticosteroids
d) Thyroxin
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