Human Reproduction

Previous Years' CBSE Board Questions

2.1 The Male Reproductive System

SAI (2 marks)

W X Y Z

Endometrium Infundibulum Vagina Perimetrium

Myometrium (b) Ampulla Cervix Perimetrium

Perimetrium (c) Ampulla Vagina Endometrium

Endometrium (d) Isthmus Cervix Myometrium

1. Name and state the function of interstitial cell present in the human testes. (2021 C)

2 Why are the human testes located outside the abdominal cavity? Name the pouch in which they are present. (AI 2014)

(Term I, 2021-22)

1. Write the location and functions of the following in human testes:

1. Sertoli cells (b) Leydig's cells (AI 2014) R

(3 marks)

1. Draw a labelled diagram to show interrelationship of four accessory ducts in a human male reproductive system. (Delhi 2019)

1. The given diagram shows human male reproductive system (one side only).

7. X

1. Identify 'X' and write its location in the body.
2. Name the accessory gland 'Y' and its secretion.
3. Name and state the function of 'Z'.

(Delhi 2015C) An

1. Draw a sectional view of seminiferous tubules of human. Label Sertoli cells, spermatogonia and Leydig's cell on it and write their function.

(3/5, Al 2015C)

2.2 The Female Reproductive System

MCQ

1. The figure given below shows the sectional view of the human female reproductive system.

White stick! (X)

1. (Z) (Y)

Identify the option that shows correct labelling for W, X, Y and Z in the given table.

SAII (3 marks)

8. The diagram above shows a part of the human female

reproductive system.

1. Name the gamete cells that would be present in 'X' if taken from a newborn baby.
2. Name 'Y' and write its function.
3. Name 'Z' and write the events that take place here. (AI 2015C) (Ap
4. Name and explain the role of the inner and middle walls of the human uterus. (Delhi 2014)

2.3 Gametogenesis

MCQ

In human sperm numerous mitochondria are present

in the region known as

1. head (b) neck
2. middle piece (d) tail.

(Term I, 2021-22) R

After spermiogenesis, the sperm heads get

embedded in which of the following cells?

1. Leydig cells
2. Sertoli cells
3. (d) Seminal vesicle

12. The hormone that regulates the synthesis and

secretion of androgens in human males is

1. GH (b) FSH
2. LH (d) prolactin. (2020 C)

SAI (2 marks)

Differentiate between spermiogenesis and spermiation. (2019C)

Explain the role of pituitary and sex hormones in the process of spermatogenesis. (2/5, Al 2015C) OR

Explain the hormonal regulation of the process of spermatogenesis in humans. (2/5, Al 2013)

Draw and label the parts of the head region only of a human sperm. (AI 2014C)

(Foreign 2014) Cr

SAIL (3 marks)

1. The diagram given below shows the events occurring in an ovary during oogenesis in a human female.

1. Identify 'X' Mention the time when the process occurs in a human female.
2. Identify 'Y'. When and how is it formed?
3. Name the hormone produced by 'Z' (2023) [II]

Study the transverse section of human ovary given below and answer the questions that follow.

1. Name the hormone that helps in growth of <math>A \rightarrow B \rightarrow C</math>.
2. Name the hormone secreted by A and B.
3. State the role of hormone produced by D.

(2020) U

Name the three different parts of a human sperm and write their involvement in the process of fertilisation. (2020 C)

Draw a sectional view of the human ovary showing the different stages of developing follicles, corpus luteum and ovulation. (Delhi 2019)

1. (a) Draw a sectional view of human ovary. Label the following parts:
2. Primary follicle

1. Secondary oocyte

1. Graafian follicle (iii) helping it to gain entry into the ovum.
2. Corpus luteum (Delhi 2015C)

1. Name the hormones influencing follicular development of corpus luteum. (Al 2019)

Construct a flow chart exhibiting sequential events of oogenesis. (2019 C)

Draw a diagram of a mature human sperm. Label any

three parts and write their functions. (2018)

Draw a labelled diagrammatic sectional view of a

human seminiferous tubule.

(Delhi 2017, Foreign 2015, Delhi 2014)

Draw a labelled diagram of a human sperm.

(NCERT, Foreign 2015)

1. Draw a diagram of human sperm. Label only those parts along with their functions, that assist the sperm to reach and gain entry into the female gamete.
2. Explain the hormonal control of spermatogenesis in humans. (Foreign 2014)

LA (5 marks)

1. (a) Draw a sectional view of a human ovary and label primary follicle, tertiary follicle, Graafian follicle and corpus luteum in it.
2. Name the gonadotropins and explain their role in oogenesis and the release of ova.

(2020) R

1. (a) Draw a sectional view of a seminiferous tubule of human. Label its any six parts.
2. Name the pituitary hormone involved in the process of spermatogenesis. State their function. (2020) R
3. (a) Differentiate between spermatogenesis and oogenesis on the basis of:
4. Time of initiation of the process
5. Site of completion of the process
6. Nature of meiotic division undergone by gamete
7. Name the hormones and state their role involved in controlling spermatogenesis in humans. (2020)
8. Explain the development of a secondary oocyte (ovum) in a human female from the embryonic stage upto its ovulation. Name the hormones involved in this process. (Delhi 2015)
9. (a) Name the hormone that initiates spermato- genesis in humans. Describe the process of spermatogenesis in sequence mentioning the ploidy of the cells at each step.
10. Draw the diagram of a mature human sperm and label the parts that
11. helps it reaching to the ovum
12. providing energy for it to reach the ovum.
13. Schematically represent and explain the events of spermatogenesis in humans. (NCERT, Delhi 2014C)
14. (a) Draw a labelled diagrammatic view of human male reproductive system.