Progesterone and Its Functions

Q. After ovulation, the ruptured follicle is converted to a structure called_____________, which secretes mainly _______________

1. corpus luteum, follicular stimulating hormone
2. corpus luteum, progesterone
3. graafian follicle, estrogen
4. graafian follicle, progesterone

Q.

Name the hormone secreted by the Graafian follicle.

Q.

Which hormone is responsible for ovulation?

1. LH

2. Testosterone

3. Estrogen

4. FSH

Q. Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle ?

1. High concentration of Estrogen
2. Low concentration of FSH
3. Low concentration of LH
4. High concentration of Progesterone

Q.

Secretion of progesterone by corpus luteum is initiated by

1. thyroxine

2. testosterone

3. LH

4. MSH

Q. Graafian follicle being a complex structure in mammals produces a hormone called estrogen, which one of the following structures produce estrogen?

1. External theca
2. Granulosa cells
3. Zona pellucida
4. Corona radiata

Q. Match the following from Column 1 and Column 2

Column 1	Column 2
p. Glucagon	1. Corpus luteum
q. Testosterone	2. $\beta$-cells
r. Insulin	3. Androgen
s. Progesterone	4. $\alpha$-cells

1. p-3, q-2, r-4, s-1
2. p-4, q-1, r-2, s-3
3. p-1, q-3, r-4, s-2
4. p-4, q-3, r-2, s-1

Q.

Which organ does not produce hormones?

Q. Which of the following statements is incorrect about gonads.

1. The Leydig cells or interstitial cells, which are present in the intertubular spaces in the testis, produce a group of hormones called androgens, mainly testosterone.
2. After ovulation, the ruptured ovarian follicle is converted to a structure called corpus luteum, which secretes mainly estrogen.
3. Androgens regulate the development, maturation and functions of the male accessory sex organs like epididymis, vas deferens, seminal vesicles, prostate gland, urethra etc.
4. Progesterone supports pregnancy and acts on the mammary glands and stimulates the formation of alveoli and milk secretion.

Q. Oxytocin and ADH are produced by hypothalamus and released from:

1. Anterior pituitary
2. Posterior pituitary
3. Pineal gland
4. Thymus

Q.

Alloxan treatment destroys:

1. Leydig cells

2. STH cells

3. β-cells of islets of Langerhans

4. Sertoli cells

Q. Function of filiform apparatus is to

1. Guide the entry of pollen tube
2. Recognize the suitable pollen at stigma
3. Stimulate division of generative cell
4. Produce nectar

Q. Which hormone is mainly secreted by corpus luteum?

1. Progesterone
2. hCG
3. Estrogen
4. Thyroxine

Q.

Which hormone is necessary for the formation of the placenta?

Q. Steroid hormones secreted from the follicular cells of the ovary are :

1. Progesterone
2. Estradiol
3. Estrogens
4. (B) & (C) both are correct

Q. State whether the following statements are true or false..
During pregnancy corpus luteum continues to secrete estrogen which helps in maintaining pregnancy

1. true
2. false

Q.

1. hCG
2. hPL
3. Prolactin
4. Estrogen

Q. During early pregnancy progesterone is secreted by

1. Corpus luteum
2. Thyroid
3. FSH
4. None of the above

Q. Name the most important hormone which causes the uterine contraction strongly.

1. Oxytocin
2. Inhibin
3. Protection
4. Progesterone

Q. Hormones from pituitary gland stimulate ..................... to release estrogen.

1. Testes
2. Ovary
3. Liver
4. Pancreas

Q. Pregnancy hormone is

1. Oestrogen
2. Androgen
3. Progesterone
4. Gestron

Q. A temporary endocrine gland in humans is

1. Islets of Langerhans
2. Pineal body
3. Corpus luteum
4. Corpus allata

Q. After ovulation, the ruptured follicle is converted to a structure called_____________, which secretes mainly _______________

1. corpus luteum, follicular stimulating hormone
2. graafian follicle, progesterone
3. corpus luteum, progesterone
4. graafian follicle, estrogen

Q. Name the female hormone produced by ovaries that helps in development of mammary glands.

1. Estrogen
2. Progesteron
3. Prolactin
4. Both A and B

Q.

Given below are four methods (A-D) and their modes of action (i) - (iv) in achieving contraception. Select their correct matching from the four options which follow.

1. A-(iii), B-(iv), C-(i), D-(ii)

2. A-(iii), B-(i), C-(iv), D-(ii)

3. A-(ii), B-(iii), C-(i), D-(iv)

4. A-(iv), B-(i), C-(ii), D-(iii)

Q. Progesterone is

1. an enzyme for digesting proteins.
2. a hormone to initiate uterine contraction.
3. an amino acid which may be the cause of alkaptonuria.
4. a hormone concerned with the maintenance of pregnancy.

Q. Which hormone is produced by placenta?

1. Gastrin
2. GH
3. Progesterone
4. ACTH

Q. Name a hormone secreted by corpus luteum.

Q. In a human, how many chromosomes are present in:
a fertilised egg?

Q.

Mention the exact location of Islets of Langerhans__________________.