Structured Applications Questions on Reproductive System Class 10 Concise ICSE Biology Selina Solutions Ch-13. In this article you would learn how to solve questions / Problems on Reproductive System of Human with answer. Visit official website CISCE for detail information about ICSE Board Class-10 Biology.
Structured Applications Skill Questions on Reproductive System Class 10 Concise ICSE Biology Selina Solutions Ch-13
| Board | ICSE |
| Subject | Biology |
| Class | 10 |
| Book | Selina Concise |
| Chapter-13 | Reproductive System |
| Topics | Solutions of Structured/Applications/Skill Ans Type Questions |
Structured /Applications /Skill Type Questions on Reproductive System
Que-1: Given below is a diagram of two systems together in the human body.
(a) Name the systems.
(b) Name the parts numbered 1-10.
(c) Describe the functions of the parts 3, 4, 5 and 6.
(d) What will happen if the part 3 on both sides gets blocked?
Ans:
(a) Excretory system and Female Reproductive system
(b)
| 1 | Kidney |
| 2 | Ureter |
| 3 | Fallopian Tube |
| 4 | Infundibulum |
| 5 | Ovary |
| 6 | Uterus |
| 7 | Urinary Bladder |
| 8 | Cervix |
| 9 | Vagina |
| 10 | Vulva |
(c)
(part 3) Function of Fallopian Tube : The fallopian tubes carry the ovum released from the ovary to the uterus.
(part 4)Function of Infundibulum : Infundibulum is the funnel shaped distal end of the ovary which picks up the released ovum and pushes it further on its passage into the fallopian tube.
(part 5) Function of Ovary : Ovary produces female gametes i.e. ova.
(part 6)Function of Uterus : Uterus allows the growth and development of the embryo.
(d) If fallopian tube (part 3) on both sides gets blocked, the ovum released by the ovary will not be pushed into the oviduct and hence, there will be no possibility of fertilisation.
Que-2: The figure given ahead is an organ system of humans. Study the same and answer the following questions.
(a) Identify the organ system.
(b) Label the guidelines 1 to 7.
(c) Write one important role of parts 3 and 6.
(d) Name the cells of part 1 that produce testosterone.
(e) What is the significance of the part 1 being located in a separate sac suspended outside the body ?
Ans:
(a) Male Reproductive Organ System
(b)
1- Testes
2- Scrotal sac
3- Epididymis
4- Sperm duct
5- Seminal vesicle
6- Bulbo-Urethral Gland
7- Urethra
(c) Part 3 (Epididymis) — It stores the sperms for some days during which they mature and become motile.
Part 6 (Bulbo-Urethral Gland) — Their secretion serves as a lubricant.
(d) Leydig cells
(e) The normal body temperature does not allow the maturation of the sperms. Being suspended outside the body cavity, the temperature in the scrotal sac is 2 to 3°C lower than that of the body which is the suitable temperature for the maturation of the sperms.
Que-3: The figure given below is an important gonad of humans. Study the figure and answer the following questions.
(a) Identify the organ. Write its specific location in the body.
(b) Label the parts shown in the figure as 1 to 4.
(c) Write important functions of parts 2 and 4.
(d) Name one cellular structure and one hormone which are produced in part 3.
(e) Draw a neat and labelled diagram of the cellular structure mentioned by you in (d).
Ans:
(a) Testis.
They are located in scrotal sac.
(b)
- 1 → Epididymis
- 2 → Efferent ducts
- 3 → Seminiferous tubules
- 4 → Sperm duct
(c) Efferent ducts (Part 2) conduct sperm to epididymis.
Sperm duct (Part 4) transmit sperms from testes to urethra.
(d) Sperms and testosterone.
(e) Labelled diagram of the cellular structure of the sperm is given below:
Que-4: Given below is the outline of the male reproductive system. Name the parts labelled 1 to 8 and state their functions. Also name the corresponding structure of part (4) in the female reproductive system.
Ans:
| Part | Functions |
| 1. (Urinary bladder) |
|
| 2. (Ureter) |
|
| 3. (Bulbo-urethral glands) |
|
| 4. (Sperm duct/Vas deferens) |
|
| 5. (Urethra) |
|
| 6. (Testis) |
|
| 7. (Scrotum) |
|
| 8. (Epididymis) |
|
Fallopian tubes (oviducts) in females are analogous to sperm ducts in males. Sperm ducts carry sperms to the urethra, while fallopian tubes carry ova to the uterus.
Que-5: The diagram given below is that of a developing human foetus in the womb. Study the same and answer the questions that follow:
(a) Name the parts ‘1’ to ‘5’ indicated by guidelines.
(b) What term is given to the period of development of the foetus in the womb?
(c) How many days does the foetus take to be fully developed?
(d) Mention two functions of the parts labelled ‘2’ other than its endocrine functions.
(e) Name (any one) hormone produced by the part labelled ‘2’.
Ans:
(a) 1 – umbilical cord,
2 – placenta,
3 – amnion,
4 – mouth of uterus,
5 – muscular wall of uterus
(b) Gestation
(c) 280 days
(d) Placenta provides the foetus with oxygen and nutrients. In addition, the placenta also removes carbon dioxide and waste products of the foetus.
(e) Progesterone
Que-6: The figure given below is the human female reproductive system. Study the same and answer the following questions.
(a) Label the guidelines 1 to 6 shown in the figure.
(b) What is the normal gestation period in human ?
(c) Where are the sperms released during coitus ?
(d) Write two important functions of part 2.
(e) Mention the technical term for the fixing of developing zygote to the uterine wall.
Ans
(a) The labelled guidelines are:
1 – Vagina
2 – Ovary
3 – Funnel of Oviduct
4 – Fallopian tube
5 – Uterus
6 – Uterus lining
(b) 280 days
(c) Vagina
(d) Ovary releases egg and produces hormones (oestrogen, progesterone)
(e) Implantation
Que-7: The diagram below represents two reproductive cells A and B. Study the same and then answer the questions that follow:
(a) Identify the reproductive cells A and B
(b) Name the specific part of the reproductive system where the above cells are produced.
(c) Where in the female reproductive system do these cells unite?
(d) Name the main hormone secreted by the (1) ovary (2) testes.
(e) Name an accessory gland found in the male reproductive system and state its secretion.
Ans:
(a) A – ovum
B – sperm
(b) Sperms are produced in the testis.
The ovum is produced in the ovary.
(c) The reproductive cells unite in the fallopian tubes of the female reproductive system.
(d) Ovary – Oestrogen and progesterone
Testis – Testosterone
(d) Accessory glands:
- Seminal vesicle – Seminal fluid
- Prostate gland – Alkaline secretion
- Bulbo-urethral gland – Lubricant
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