Explore topic-wise MCQs in Biology.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the name of the outer layer of the adrenal cortex?

A. Zona reticularis
B. Zona glomerulosa
C. Zona fasciculata
D. Zona pellucida
Answer» C. Zona fasciculata
2.

Which of these substances does norepinephrine not stimulate the breakdown of?

A. Glucose
B. Lipids
C. Proteins
D. Glycogen
Answer» B. Lipids
3.

Which of these is not an effect of catecholamine secretion?

A. Piloerection
B. Pupillary dilation
C. Glycogen formation
D. Increase in heart rate
Answer» D. Increase in heart rate
4.

Which of these hormones would be rapidly secreted in a man if he was being chased by a dog?

A. Somatostatin
B. Somatotropin
C. Epinephrine
D. Prolactin
Answer» D. Prolactin
5.

Catecholamines are secreted by the ______

A. posterior pituitary
B. anterior pituitary
C. adrenal cortex
D. adrenal medulla
Answer» E.
6.

T-lymphocytes provide cell-mediated immunity. True or false?

A. True
B. False
Answer» B. False
7.

What is the disease caused by the deficiency of adrenal cortex hormones?

A. Acromegaly
B. Graves’ disease
C. Addison’s disease
D. Diabetes Insipidus
Answer» D. Diabetes Insipidus
8.

Identify the structure in the given below.

A. Pineal gland
B. Thymus
C. Parathyroid gland
D. Adrenal gland
Answer» E.
9.

Where are the adrenal glands located?

A. Above the kidneys
B. Between the lungs
C. Around the trachea
D. Base of the hypothalamus
Answer» B. Between the lungs
10.

Which of these statements is false about thymus?

A. Differentiation of T-lymphocytes take place here
B. It secretes thymosin
C. It is intact for persons of all ages
D. Promotes production of antibodies
Answer» D. Promotes production of antibodies
11.

What is the shape of the thymus gland?

A. Spherical
B. Lobular
C. Irregular
D. Triangular
Answer» C. Irregular
12.

Which of these is not a function of PTH?

A. Reduces calcium ion reabsorption from digested food
B. Increases calcium ion level in blood
C. Stimulates demineralization
D. Stimulates reabsorption of calcium ions in kidneys
Answer» B. Increases calcium ion level in blood
13.

How many parathyroid glands do humans possess?

A. 2
B. 3
C. 4
D. 1
Answer» D. 1
14.

TCT is secreted by the ______

A. hypothalamus
B. pituitary gland
C. thyroid gland
D. adrenal cortex
Answer» D. adrenal cortex
15.

Which of these is not a function of thyroid hormones?

A. Regulation of basal metabolic rate
B. Erythropoiesis
C. Maintenance of electrolyte balance
D. Regulation of diurnal cycle
Answer» E.