Ovaries

Q.

What is the menstrual cycle? Which hormones regulate the menstrual cycle?

Q.

Self-fertilization in earthworm is prevented due to

1. protandry

2. protogyny

3. Reproductive structures not conducive for self-fertilization

4. both b and c

Q.

All the following tissues in mammals except one consist of a central 'medullary' region surrounded by a cortical region. Mark the wrong entry.

1. Adrenal

2. Kidney

3. Liver

4. Ovary

Q. ________ is present inside the Graafian follicle.

1. Tunica albuginea
2. Primary oocyte
3. Ovum
4. Secondary oocyte

Q. Which of the following hormones is not a secretion product of human placenta?

1. Prolactin
2. Estrogen
3. Progesterone
4. Human chorionic gonadotropin

Q. Granulosa layers being important layers that surround the follicle, when present around the follicles with a large central cavity, ruptures and releases secondary oocyte. This structure is called _________.

1. primary follicle
2. Graafian follicle
3. secondary follicle
4. tertiary follicle

Q. Select the correct sequence which represents the various stages of follicular development?

1. Primordial follicle → Graafian follicle → Secondary follicle → Tertiary follicle → Primary follicle
2. Graafian follicle → Primordial follicle → Secondary follicle → Tertiary follicle → Primary follicle
3. Primordial follicle → Primary follicle → Graafiann follicle → Tertiary follicle → Graafian follicle
4. Primordial follicle → Primary follicle → Secondary follicle → Tertiary follicle → Graafian follicle

Q.

The hormone(s) to control the menstrual cycle in human beings is _____.

1. Progesterone

2. FSH, LH, Oestrogen

3. FSH

4. LH

Q. Graafian follicle contains_______.

1. both a and b
2. secondary oocyte
3. ovum
4. primary oocyte

Q.

Match the hormones with the event they control in menstrual cycle

i. FSH a. ovulation

ii. LH b. surge of LH

iii.Progesterone c. Development of ovarian follicle

iv. Oestrogen d. maintenance of pregnancy

1. i. c ii. a iii. d, iv. b

2. i. a, ii.b, iii.c, iv.d

3. i. d, ii. b. iii.c, iv.a

4. i. b, ii.c, iii.d, iv.a

Q.

Identify the correct matching set of pituitary gland and hormones _____.

1. Anterior lobe:- ADH, Oxytocin

   Posterior lobe:- LH, FSH, GH,

2. Anterior lobe:- LH, FSH, GH,

   Posterior lobe:- ADH, Oxytocin

3. Anterior lobe:- TSH, MSH

   Posterior lobe:- LH, FSH, GH,

4. Anterior lobe:- ACTH, ADH, Oxytocin

   Posterior lobe:- TSH, MSH

Q. Choose the correct statements about the functions of progesterone:

1. It is responsible for the maintenance of pregnancy.
2. It promotes the development of alveoli in the breasts.
3. During pregnancy, high levels of progesterone prevent lactation.
4. It promotes the development of secondary sexual characteristics such as appearance of pubic and axillary hair, etc.

Q. Antrum is found in:

1. secondary follicle
2. none of these
3. tertiary follicle
4. primary follicle

Q. When both the ovaries of rat are removed, then which hormone is decreased in blood?

1. Oxytocin
2. Prolactin
3. Estrogen
4. Gonadotrophic releasing factor

Q.

Give example(s) of:

(a) Hyperglycemic hormone and hypoglycemic hormone

(b) Hypercalcemic hormone

(c) Gonadotrophic hormones

(d) Progestational hormone

(e) Blood pressure lowering hormone

(f) Androgens and estrogens

Q. Burst the bubbles with the hormones that play a role in the menstural cycle in humans:

1. FSH
2. LH
3. Glucagon
4. Insulin
5. GnRH
6. Adrenaline
7. Estrogen
8. Progesterone

Q.

Match the hormones with the event they control in menstrual cycle

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. FSH}& \text{a. ovulation}\\ \text{ii. LH}& \text{b. surge of LH}\\ \text{iii. Progesterone}& \text{c. Development of ovarian follicle}\\ \text{iv. Oestrogen}& \text{d. maintenance of pregnancy}\end{array}$

1. i. a, ii. b, iii. c, iv. d

2. i. c, ii. a, iii. d, iv. b

3. i. d, ii. b. iii. c, iv. a

4. i. b, ii. c, iii. d, iv. a

Q.

Level of which hormone decreases in blood when both ovaries are removed from a female?

1. Testosterone

2. Progesterone

3. Estrogen

4. Gonadotropins

Q.

Assertion: Newly developed oogonia cells get infiltrated by certain somatic cells in the ovary.

Reason: This infiltration occurs to lay down formation of primordial follicles. Layer of somatic cells surrounds the oocyte and the somatic cells differentiate into granulosa cells.

1. If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
2. If both Assertion and Reason are false.
3. If Assertion is true but Reason is false.
4. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.