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Biology 12 Chapter 18 Chemical Coordination -20
1.
What is the function of Renin?
a) To monitor heart beats
b) To monitor BP
c) To increase the production of RBCs
d) To promote the absorption of calcium from the diet
2.
Which hormone is released when oxygen is scarcer?
a) Renin
b) Calcitriol
c) Calcitonin
d) EPO
3.
Which hormone is released when oxygen is scarcer?
a) Calcitonin
b) Renin
c) Calcitriol
d) Erythropoietin
4.
What is the function of EPO?
a) To monitor BP
b) To monitor heart beats
c) To increase the production of RBCs
d) To promote the absorption of calcium from the diet
5.
What is the function of Erythropoietin?
a) To increase the production of RBCs
b) To monitor BP
c) To promote the absorption of calcium from the diet
d) To monitor heart beats
6.
Which hormone acts on the cells of intestine?
a) Renin
b) Calcitonin
c) Erythropoietin
d) Calcitriol
7.
What is the function of Calcitriol?
a) To increase the production of RBCs
b) To monitor heart beats
c) To monitor BP
d) To promote the absorption of calcium from the diet
8.
Which of the following is the major hormone secreted by the thyroid?
a) Thyroxin
b) Oxytocin
c) T3
d) Calcitonin
9.
What is the % of T4 in thyroid gland?
a) 90%
b) 10%
c) 50%
d) 25%
10.
What is the % of thyroxin in thyroid gland?
a) 25%
b) 10%
c) 50%
d) 90%
11.
What is the % of T3 in thyroid gland?
a) 25%
b) 10%
c) 50%
d) 90%
12.
T3 is ....................times more potent than T4?
a) Four
b) Three
c) Five
d) Two
13.
Action duration of T4 is ..................times more than T3?
a) Three
b) Four
c) Two
d) Five
14.
What does the under secretion of thyroxin causes?
a) Hyperthyroidism
b) Dwarfism
c) Gigantism
d) Hypothyroidism
15.
What is the full-blown hypothyroid syndrome in adults called?
a) Acromegaly
b) Dwarfism
c) Gigantism
d) Myxedema
16.
What are the symptoms of myxedema?
a) Feeling chilled
b) Low metabolic rate
c) Puffy eyes
d) All of these
17.
What are the symptoms of myxedema?
a) Tongue swelling
b) All of these
c) Constipation
d) Enlarged thyroid gland
18.
What are the symptoms of myxedema?
a) Dry skin
b) Goitre
c) Hair loss from the scalp
d) All of these
19.
What are the symptoms of myxedema?
a) Hair loss from the eyebrows
b) All of these
c) Dry skin
d) Goitre
20.
What are the symptoms of myxedema?
a) Dry skin
b) Goitre
c) All of these
d) Oedema
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