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Biology 10 Chapte 12 - Coordination and Control - 25
1.
What are the male and female reproductive organs called?
a) Pancreas
b) Parathyroid gland
c) Gonads
d) Thyroid gland
2.
What is the name of hormones that are produced by gonads?
a) Somatotrophin hormone
b) Vasopressin hormone
c) Sex hormones
d) Hormone thyroxin
3.
Which of the following hormone is secreted by testes?
a) Progesterone
b) Testosterone
c) Estrogen
d) Thyroxin
4.
Which of the following hormone is responsible for the development of male secondary sex characters?
a) Progesterone
b) Estrogen
c) Thyroxin
d) Testosterone
5.
Which of the following hormone is responsible for the growth of hair on face?
a) Testosterone
b) Estrogen
c) Progesterone
d) Thyroxin
6.
Which of the following hormone is responsible for the coarseness of voice?
a) Thyroxin
b) Progesterone
c) Testosterone
d) Estrogen
7.
Which of the following hormone is secreted by ovaries?
a) Progesterone
b) Testosterone
c) Estrogen
d) Both c and d
8.
Which of the following hormone is responsible for the development of female secondary characters?
a) Testosterone
b) Progesterone
c) Both b and c
d) Estrogen
9.
Which of the following hormone is responsible for the development of breast?
a) Both b and c
b) Progesterone
c) Estrogen
d) Testosterone
10.
Endocrine glands do not secrete their hormones at a ..........rate?
a) Variable
b) Constant
c) Flexible
d) Fixed
11.
Flexible
a) None of these
b) With the production of hormone
c) With the utilization of hormones
d) With the needs of body
12.
How the secretion of hormone is regulated?
a) By gonads
b) By thyroid gland
c) By feedback mechanisms
d) By pancreas
13.
What means the regulation of a process by the output of the same process?
a) Feedback mechanism
b) Nervous coordination system
c) Endocrine gland
d) Chemical coordination system
14.
How many types of feedback mechanism are there?
a) Three
b) Four
c) Two
d) Five
15.
In which feedback, the output of a process decreases or inhibits the process?
a) Negative
b) Constant
c) Positive
d) Variable
16.
Which feedback works to return a condition towards its normal value?
a) Negative feedback
b) Constant feedback
c) Positive feedback
d) Variable feedback
17.
When the blood glucose concentration rises, which of the following endocrine gland secretes insulin?
a) Pancreas
b) Gonads
c) Thyroid gland
d) Parathyroid gland
18.
When the blood glucose concentration rises, which hormone is secreted by pancreas?
a) Thyroxin
b) Insulin
c) Parathormone
d) Glucagon
19.
Which of the following hormone decreases the blood glucose concentration?
a) Thyroxin
b) Parathormone
c) Glucagon
d) Insulin
20.
When the blood glucose concentration drops below normal, which of the following endocrine gland secretes glucagon?
a) Parathyroid gland
b) Thyroid gland
c) Gonads
d) Pancreas
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