ZOO/IV/04 Student's Copy
2 0 1 8
Pre-CBCS
4th Semester
ZOOLOGY
Paper ZL-IV
Endocrinology and Reproduction Biology
Full Marks 55
Time 2½ hours
PART A—OBJECTIVE
Marks 20
The figures in the margin indicate full marks for the questions
SECTION—A
Marks 5
Tick the correct answer in the brackets provided 1×5=5
1. Which of the following is an example of a trophic hormone?
Cortisol
Insulin
Thyroid stimulating hormone
Antidiuretic hormone
2. The production of insulin is controlled by
glycogen level
blood glucose level
blood protein level
sodium concentration
/410 1 Contd.
3. Behavioural and physiological patterns govern by self-sustaining internal
pacemakers that occur of 24 hours is called
circannual rhythm
infradian rhythm
ultradian rhythm
circadian rhythm
4. The acrosome of the sperm develops from the
centrioles
mitochondria
nucleus
Golgi bodies
5. Which of the following is a polyestrous animal?
Cow
Wolf
Fox
Deer
SECTION—B
Marks 15
Write short notes on the following 3×5=15
1. Functions of thyroid gland
2. Cretinism
3. Pheromones
4. Spermiogenesis
5. Estrous cycle
ZOO/IV/04/410 2 Contd.
PART B—DESCRIPTIVE
Marks 35
The figures in the margin indicate full marks for the questions
1. Describe the structure and functions of pituitary gland. 7
OR
Give a brief outline classification of hormones. How are hormones
transported?
2. Explain the mechanism of action of steroid hormones. 7
OR
Write notes on the types, symptoms and treatment of diabetes mellitus.
3. Explain the hormonal regulations of calcium homeostasis. 7
OR
Discuss the biological rhythms and their regulation in animals.
4. Describe the process of spermatogenesis.
7
OR
Write short notes on the following 3½+3½=7
Hormonal regulation of oogenesis
Structure of ovum
5. Explain the phases and hormonal regulation of menstrual cycle. 7
OR
Discuss the chemical basis of contraception.