Scrotum helps in maintaining the temperature of the testes which is A lower than the normal body temperature. Each testis has about B compartments called testicular lobules. Select the option that fills the blanks correctly.

         A               B

1.  1-3°C            300

2.  2-2.5°C         250

3.  3-3.5°C         250

4.  2-2.5°C         350

Subtopic:  Male Reproductive System |
 95%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Given below is the structure of sperm of the human male

                                       

Identify the structure ‘X’ and choose the option representing the correct description/function of X.

1. Contains chromosomal material

2. Provides energy source for swimming

3. Contains enzyme that helps in fertilization of the ovum

4. Secretes hormone for maturation and its motility

Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 90%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

In the female reproductive system, the funnel-shaped part of the fallopian tube closest to the ovary is

1. Isthmus

2. Infundibulum

3. Ampulla

4. Fundus

Subtopic:  Female Reproductive System-1 |
 88%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

The menstrual flow results due to the breakdown of the glandular layer that lines the uterine cavity. This inner layer is

1. Perimetrium

2. Endometrium

3. Myometrium

4. Germinal epithelium

Subtopic:  Introduction to Menstrual Cycle: 1 |
 95%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

In a functional mammary gland, the cells of _________ secrete milk, which is stored in the cavities of alveoli. Choose the option that fills the blank correctly.

1. Alveoli

2. Lactiferous duct

3. Mammary ducts

4. Areola

Subtopic:  Mammary Gland & Lactation |
 79%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

At the end of the second meiotic division, the human female germ cells differentiate to form

1. Oogonia

2. First polar body

3. Second polar body

4. Primary oocyte

Subtopic:  Fertilization |
 80%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Choose the incorrect match

1. Testicular lobules in each testis → 250
2. Number of primary follicles in each ovary at puberty → 6000 to 8000
3. Sperm count in healthy male per ejaculate →  200 to 300 million
4. Mammary lobes in each breast → 15 to 20

Subtopic:  Female Reproductive System-1 |
 82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

How many of the following statements are true regarding follicle stimulating hormone?

(i) FSH secreted by anterior pituitary cells, is called gonadotropin

(ii) Its target organs are the ovaries and testes

(iii) In the ovaries, it stimulates the secretion of ovarian hormones

(iv) In the testes, it stimulates the production of sperm

1. Only (i), (ii), (iii)

2. Only (ii), (iii), (iv)

3. (i), (ii), (iii), (iv)

4. Only (i), (iii)

Subtopic:  Male Reproductive System | Menstrual Cycle: Pre Ovulatory Phase |
 61%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Column-I

Column-II

(i) Relaxin 

(ii) Prolactin 

(iii) Progesterone 

(iv) LH 

(a) Maternity hormone

(b) Ovulation

(c) Parturition

(d) Pregnancy hormone

1. (i)(a),(ii)(c),(iii)(b),(iv)(d)

2. (i)(c),(ii)(d),(iii)(b),(iv)(a)

3. (i)(c),(ii)(b),(iii)(d),(iv)(a)

4. (i)(c),(ii)(a),(iii)(d),(iv)(b)

Subtopic:  Menstrual Cycle: Luteal Phase | Mammary Gland & Lactation | Introduction to Menstrual Cycle |
 84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

What induces the completion of the meiotic division of the secondary oocyte?

1. Contact of the sperm with the zona pellucida layer of ovum

2. Entry of the sperm into the cytoplasm of the ovum through the zona pellucida and the plasma membrane

3. Fast block to polyspermy

4. Release of sperms by the penis into the vagina of female

Subtopic:  Fertilization |
 76%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.