Selina Textbook Solutions: The Reproductive System | Biology Class 10 ICSE PDF Download

 Page 1


 
A. MULTIPLE CHOICE TYPE: 
 
Question 1:  
1. Which one of the following is the correct route that a sperm follows when it leaves the testis 
of a mammal? 
(a) vas deferens ?epididymis ? urethra 
(b) urethra ? Epididymis ?
 vas deferens 
(c) Epididymis 
?
 urethra 
?
 vas deferens 
(d) Epididymis ?
 vas deferens 
?
 urethra
 
Solution 1: 
(d) Epididymis ? vas deferens ? urethra 
 
 
Question 2: 
When pregnancy does not occur, the life of corpus luteum is about- 
(a) 4 days  (b) 10 days   (c) 14 days    (d) 28 days  
Solution 2: 
(d) 28 days 
 
 
Question 3: 
In female, after how much time after fertilization, does the fertilized egg get implanted in the 
uterine wall? 
(a) Few months     (b) one month 
(c) Three weeks     (d) about seven days 
Solution 3: 
(d) About seven days 
 
 
B. VERY SHORT ANSWER TYPE: 
 
Question 1: 
Name the following: 
(a) The body part in which the testes are present in a human male. 
(b) The part where the sperms are produced in the testes  
(c) The fully developed part of the ovary containing a mature egg 
(d) The accessory gland in human males whose secretion activates the sperms 
Class X Chapter 10 – The Reproductive System  Biology 
_____________________________________________________________________________ 
Page 2


 
A. MULTIPLE CHOICE TYPE: 
 
Question 1:  
1. Which one of the following is the correct route that a sperm follows when it leaves the testis 
of a mammal? 
(a) vas deferens ?epididymis ? urethra 
(b) urethra ? Epididymis ?
 vas deferens 
(c) Epididymis 
?
 urethra 
?
 vas deferens 
(d) Epididymis ?
 vas deferens 
?
 urethra
 
Solution 1: 
(d) Epididymis ? vas deferens ? urethra 
 
 
Question 2: 
When pregnancy does not occur, the life of corpus luteum is about- 
(a) 4 days  (b) 10 days   (c) 14 days    (d) 28 days  
Solution 2: 
(d) 28 days 
 
 
Question 3: 
In female, after how much time after fertilization, does the fertilized egg get implanted in the 
uterine wall? 
(a) Few months     (b) one month 
(c) Three weeks     (d) about seven days 
Solution 3: 
(d) About seven days 
 
 
B. VERY SHORT ANSWER TYPE: 
 
Question 1: 
Name the following: 
(a) The body part in which the testes are present in a human male. 
(b) The part where the sperms are produced in the testes  
(c) The fully developed part of the ovary containing a mature egg 
(d) The accessory gland in human males whose secretion activates the sperms 
Class X Chapter 10 – The Reproductive System  Biology 
_____________________________________________________________________________ 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
(e) The tubular knot fitting like a cap on the upper side of the testis. 
Solution 1: 
(a) Scrotum 
(b) Seminiferous Tubules 
(c) Graafian Follicle 
(d) Seminal vesicle 
(e) Epididymis 
 
 
Question 2: 
Choose the odd one in each of the following: 
(a) Oestrogen; progesterone; testosterone; prolactin. 
(b) Ovary; fallopian tube; ureter; uterus 
(c) Seminiferous tubule; ovum; epididymis; sperm duct; urethra 
(d) Sperm; implantation; fertilization; ovum; ovum; after birth. 
Solution 2: 
(a) Testosterone 
(b) Ureter 
(c) Ovum 
(d) After birth 
 
 
Question 3: 
Rewrite the terms in the correct order so as to be in a logical sequence. 
(a) Sperm duct, penis, testes, sperms, semen 
(b) Puberty, menopause, menstruals, menarche, reproductive age. 
(c) Graafian follicle, ostium, uterus, fallopian tube. 
Solution 3: 
(a) Testes ? Sperms ? Sperm duct ? Semen ? Penis 
(b) Menarche ? Puberty ? Reproductive age ? Menstruals ? Menopause 
(c) Graafian follicle ? Ostium ? Fallopian tube Uterus 
 
 
Question 4: 
Write in sequence, the regions which a mature sperm travels from the seminiferous tubules up 
to the urethral opening in the human male. 
Solution 4: 
Seminiferous tubule ? Epididymis ? Vas deferens ? Penis 
 
 
Page 3


 
A. MULTIPLE CHOICE TYPE: 
 
Question 1:  
1. Which one of the following is the correct route that a sperm follows when it leaves the testis 
of a mammal? 
(a) vas deferens ?epididymis ? urethra 
(b) urethra ? Epididymis ?
 vas deferens 
(c) Epididymis 
?
 urethra 
?
 vas deferens 
(d) Epididymis ?
 vas deferens 
?
 urethra
 
Solution 1: 
(d) Epididymis ? vas deferens ? urethra 
 
 
Question 2: 
When pregnancy does not occur, the life of corpus luteum is about- 
(a) 4 days  (b) 10 days   (c) 14 days    (d) 28 days  
Solution 2: 
(d) 28 days 
 
 
Question 3: 
In female, after how much time after fertilization, does the fertilized egg get implanted in the 
uterine wall? 
(a) Few months     (b) one month 
(c) Three weeks     (d) about seven days 
Solution 3: 
(d) About seven days 
 
 
B. VERY SHORT ANSWER TYPE: 
 
Question 1: 
Name the following: 
(a) The body part in which the testes are present in a human male. 
(b) The part where the sperms are produced in the testes  
(c) The fully developed part of the ovary containing a mature egg 
(d) The accessory gland in human males whose secretion activates the sperms 
Class X Chapter 10 – The Reproductive System  Biology 
_____________________________________________________________________________ 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
(e) The tubular knot fitting like a cap on the upper side of the testis. 
Solution 1: 
(a) Scrotum 
(b) Seminiferous Tubules 
(c) Graafian Follicle 
(d) Seminal vesicle 
(e) Epididymis 
 
 
Question 2: 
Choose the odd one in each of the following: 
(a) Oestrogen; progesterone; testosterone; prolactin. 
(b) Ovary; fallopian tube; ureter; uterus 
(c) Seminiferous tubule; ovum; epididymis; sperm duct; urethra 
(d) Sperm; implantation; fertilization; ovum; ovum; after birth. 
Solution 2: 
(a) Testosterone 
(b) Ureter 
(c) Ovum 
(d) After birth 
 
 
Question 3: 
Rewrite the terms in the correct order so as to be in a logical sequence. 
(a) Sperm duct, penis, testes, sperms, semen 
(b) Puberty, menopause, menstruals, menarche, reproductive age. 
(c) Graafian follicle, ostium, uterus, fallopian tube. 
Solution 3: 
(a) Testes ? Sperms ? Sperm duct ? Semen ? Penis 
(b) Menarche ? Puberty ? Reproductive age ? Menstruals ? Menopause 
(c) Graafian follicle ? Ostium ? Fallopian tube Uterus 
 
 
Question 4: 
Write in sequence, the regions which a mature sperm travels from the seminiferous tubules up 
to the urethral opening in the human male. 
Solution 4: 
Seminiferous tubule ? Epididymis ? Vas deferens ? Penis 
 
 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
C. SHORT ANSWER TYPE: 
 
Question 1: 
What is semen? 
Solution 1: 
Semen is the mixture of sperms and secretions from seminal vesicles, prostate gland and 
Cowper's (bulbo -urethral gland). 
 
 
Question 2: 
Describe the functions of the following: 
(a) Inguinal canal    (b) Prostate gland 
(c) Testis                  (d) ovary                  (e) Oviduct 
Solution 2: 
(a) Inguinal canal: It is the canal which allows the descent of testes along with their ducts, 
blood vessels and nerves into the abdomen. 
(b) Prostate gland: It is a bilobed structure which surrounds the urethra and pours an alkaline 
secretion into the semen. 
(c) Testis: Testis is a male reproductive organ. There a pair of testes present in a scrotal sac 
descended outside the body cavity. Testes produce sperms which are the male gametes. 
(d) Ovary: Ovary is a female reproductive organ. It produces ova i.e. female gametes. 
(e) Oviduct: A pair of oviduct is present on either side of the uterus. Oviduct carries the 
released ovum from the ovary to the uterus. 
 
 
Question 3: 
What are the secondary sexual characters in the human male and female respectively? 
Solution 3: 
Secondary sexual characters in males: 
(i) Beard and moustache  
(ii) Stronger muscular built 
(iii) Deeper voice 
Secondary sexual characters in females: 
(i) Breasts in females 
(ii) Large hips 
(iii) High pitched voice 
 
 
 
 
Page 4


 
A. MULTIPLE CHOICE TYPE: 
 
Question 1:  
1. Which one of the following is the correct route that a sperm follows when it leaves the testis 
of a mammal? 
(a) vas deferens ?epididymis ? urethra 
(b) urethra ? Epididymis ?
 vas deferens 
(c) Epididymis 
?
 urethra 
?
 vas deferens 
(d) Epididymis ?
 vas deferens 
?
 urethra
 
Solution 1: 
(d) Epididymis ? vas deferens ? urethra 
 
 
Question 2: 
When pregnancy does not occur, the life of corpus luteum is about- 
(a) 4 days  (b) 10 days   (c) 14 days    (d) 28 days  
Solution 2: 
(d) 28 days 
 
 
Question 3: 
In female, after how much time after fertilization, does the fertilized egg get implanted in the 
uterine wall? 
(a) Few months     (b) one month 
(c) Three weeks     (d) about seven days 
Solution 3: 
(d) About seven days 
 
 
B. VERY SHORT ANSWER TYPE: 
 
Question 1: 
Name the following: 
(a) The body part in which the testes are present in a human male. 
(b) The part where the sperms are produced in the testes  
(c) The fully developed part of the ovary containing a mature egg 
(d) The accessory gland in human males whose secretion activates the sperms 
Class X Chapter 10 – The Reproductive System  Biology 
_____________________________________________________________________________ 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
(e) The tubular knot fitting like a cap on the upper side of the testis. 
Solution 1: 
(a) Scrotum 
(b) Seminiferous Tubules 
(c) Graafian Follicle 
(d) Seminal vesicle 
(e) Epididymis 
 
 
Question 2: 
Choose the odd one in each of the following: 
(a) Oestrogen; progesterone; testosterone; prolactin. 
(b) Ovary; fallopian tube; ureter; uterus 
(c) Seminiferous tubule; ovum; epididymis; sperm duct; urethra 
(d) Sperm; implantation; fertilization; ovum; ovum; after birth. 
Solution 2: 
(a) Testosterone 
(b) Ureter 
(c) Ovum 
(d) After birth 
 
 
Question 3: 
Rewrite the terms in the correct order so as to be in a logical sequence. 
(a) Sperm duct, penis, testes, sperms, semen 
(b) Puberty, menopause, menstruals, menarche, reproductive age. 
(c) Graafian follicle, ostium, uterus, fallopian tube. 
Solution 3: 
(a) Testes ? Sperms ? Sperm duct ? Semen ? Penis 
(b) Menarche ? Puberty ? Reproductive age ? Menstruals ? Menopause 
(c) Graafian follicle ? Ostium ? Fallopian tube Uterus 
 
 
Question 4: 
Write in sequence, the regions which a mature sperm travels from the seminiferous tubules up 
to the urethral opening in the human male. 
Solution 4: 
Seminiferous tubule ? Epididymis ? Vas deferens ? Penis 
 
 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
C. SHORT ANSWER TYPE: 
 
Question 1: 
What is semen? 
Solution 1: 
Semen is the mixture of sperms and secretions from seminal vesicles, prostate gland and 
Cowper's (bulbo -urethral gland). 
 
 
Question 2: 
Describe the functions of the following: 
(a) Inguinal canal    (b) Prostate gland 
(c) Testis                  (d) ovary                  (e) Oviduct 
Solution 2: 
(a) Inguinal canal: It is the canal which allows the descent of testes along with their ducts, 
blood vessels and nerves into the abdomen. 
(b) Prostate gland: It is a bilobed structure which surrounds the urethra and pours an alkaline 
secretion into the semen. 
(c) Testis: Testis is a male reproductive organ. There a pair of testes present in a scrotal sac 
descended outside the body cavity. Testes produce sperms which are the male gametes. 
(d) Ovary: Ovary is a female reproductive organ. It produces ova i.e. female gametes. 
(e) Oviduct: A pair of oviduct is present on either side of the uterus. Oviduct carries the 
released ovum from the ovary to the uterus. 
 
 
Question 3: 
What are the secondary sexual characters in the human male and female respectively? 
Solution 3: 
Secondary sexual characters in males: 
(i) Beard and moustache  
(ii) Stronger muscular built 
(iii) Deeper voice 
Secondary sexual characters in females: 
(i) Breasts in females 
(ii) Large hips 
(iii) High pitched voice 
 
 
 
 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
Question 4: 
What are the accessory reproductive organs? 
Solution 4: 
The accessory reproductive organs include all those structures which help in the transfer and 
meeting of two kinds of sex cells leading to fertilization and growth and development of egg 
up to the birth of the baby. 
For example: uterus in females, penis in males. 
 
 
Question 5: 
Differentiate between primary and accessory reproductive organs 
Solution 5: 
Primary Reproductive Organs Accessory Reproductive Organs 
The primary reproductive organs produce 
sex cells. 
The accessory reproductive organs help in 
the transfer and meeting of two kinds of sex 
cells leading to fertilization. 
The primary reproductive organs do not help 
in the development of baby. 
The accessory organs help in the growth and 
development of egg up to the birth of baby. 
Example: Testes in males and ovaries in 
females. 
Example: penis in males, Uterus, vagina in 
female. 
 
 
Question 6: 
What is hymne? 
Solution 6: 
Hymen is a thin membrane which partially covers the opening of the vagina in young females. 
 
 
Question 7: 
Define the following terms: 
(a) Hernia    (b) Ovulation  (c) Puberty 
Solution 7: 
(a) Hernia: It is an abnormal condition which is caused when the intestine due to the pressure 
in abdomen bulges into the scrotum through the inguinal canal. 
(b) Ovulation:It is the release of the mature ovum by the rupture of the Graafian follicle 
(c) Puberty:It is the period during which immature reproductive system in boys and girls 
matures and becomes capable of reproduction. 
 
Page 5


 
A. MULTIPLE CHOICE TYPE: 
 
Question 1:  
1. Which one of the following is the correct route that a sperm follows when it leaves the testis 
of a mammal? 
(a) vas deferens ?epididymis ? urethra 
(b) urethra ? Epididymis ?
 vas deferens 
(c) Epididymis 
?
 urethra 
?
 vas deferens 
(d) Epididymis ?
 vas deferens 
?
 urethra
 
Solution 1: 
(d) Epididymis ? vas deferens ? urethra 
 
 
Question 2: 
When pregnancy does not occur, the life of corpus luteum is about- 
(a) 4 days  (b) 10 days   (c) 14 days    (d) 28 days  
Solution 2: 
(d) 28 days 
 
 
Question 3: 
In female, after how much time after fertilization, does the fertilized egg get implanted in the 
uterine wall? 
(a) Few months     (b) one month 
(c) Three weeks     (d) about seven days 
Solution 3: 
(d) About seven days 
 
 
B. VERY SHORT ANSWER TYPE: 
 
Question 1: 
Name the following: 
(a) The body part in which the testes are present in a human male. 
(b) The part where the sperms are produced in the testes  
(c) The fully developed part of the ovary containing a mature egg 
(d) The accessory gland in human males whose secretion activates the sperms 
Class X Chapter 10 – The Reproductive System  Biology 
_____________________________________________________________________________ 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
(e) The tubular knot fitting like a cap on the upper side of the testis. 
Solution 1: 
(a) Scrotum 
(b) Seminiferous Tubules 
(c) Graafian Follicle 
(d) Seminal vesicle 
(e) Epididymis 
 
 
Question 2: 
Choose the odd one in each of the following: 
(a) Oestrogen; progesterone; testosterone; prolactin. 
(b) Ovary; fallopian tube; ureter; uterus 
(c) Seminiferous tubule; ovum; epididymis; sperm duct; urethra 
(d) Sperm; implantation; fertilization; ovum; ovum; after birth. 
Solution 2: 
(a) Testosterone 
(b) Ureter 
(c) Ovum 
(d) After birth 
 
 
Question 3: 
Rewrite the terms in the correct order so as to be in a logical sequence. 
(a) Sperm duct, penis, testes, sperms, semen 
(b) Puberty, menopause, menstruals, menarche, reproductive age. 
(c) Graafian follicle, ostium, uterus, fallopian tube. 
Solution 3: 
(a) Testes ? Sperms ? Sperm duct ? Semen ? Penis 
(b) Menarche ? Puberty ? Reproductive age ? Menstruals ? Menopause 
(c) Graafian follicle ? Ostium ? Fallopian tube Uterus 
 
 
Question 4: 
Write in sequence, the regions which a mature sperm travels from the seminiferous tubules up 
to the urethral opening in the human male. 
Solution 4: 
Seminiferous tubule ? Epididymis ? Vas deferens ? Penis 
 
 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
C. SHORT ANSWER TYPE: 
 
Question 1: 
What is semen? 
Solution 1: 
Semen is the mixture of sperms and secretions from seminal vesicles, prostate gland and 
Cowper's (bulbo -urethral gland). 
 
 
Question 2: 
Describe the functions of the following: 
(a) Inguinal canal    (b) Prostate gland 
(c) Testis                  (d) ovary                  (e) Oviduct 
Solution 2: 
(a) Inguinal canal: It is the canal which allows the descent of testes along with their ducts, 
blood vessels and nerves into the abdomen. 
(b) Prostate gland: It is a bilobed structure which surrounds the urethra and pours an alkaline 
secretion into the semen. 
(c) Testis: Testis is a male reproductive organ. There a pair of testes present in a scrotal sac 
descended outside the body cavity. Testes produce sperms which are the male gametes. 
(d) Ovary: Ovary is a female reproductive organ. It produces ova i.e. female gametes. 
(e) Oviduct: A pair of oviduct is present on either side of the uterus. Oviduct carries the 
released ovum from the ovary to the uterus. 
 
 
Question 3: 
What are the secondary sexual characters in the human male and female respectively? 
Solution 3: 
Secondary sexual characters in males: 
(i) Beard and moustache  
(ii) Stronger muscular built 
(iii) Deeper voice 
Secondary sexual characters in females: 
(i) Breasts in females 
(ii) Large hips 
(iii) High pitched voice 
 
 
 
 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
Question 4: 
What are the accessory reproductive organs? 
Solution 4: 
The accessory reproductive organs include all those structures which help in the transfer and 
meeting of two kinds of sex cells leading to fertilization and growth and development of egg 
up to the birth of the baby. 
For example: uterus in females, penis in males. 
 
 
Question 5: 
Differentiate between primary and accessory reproductive organs 
Solution 5: 
Primary Reproductive Organs Accessory Reproductive Organs 
The primary reproductive organs produce 
sex cells. 
The accessory reproductive organs help in 
the transfer and meeting of two kinds of sex 
cells leading to fertilization. 
The primary reproductive organs do not help 
in the development of baby. 
The accessory organs help in the growth and 
development of egg up to the birth of baby. 
Example: Testes in males and ovaries in 
females. 
Example: penis in males, Uterus, vagina in 
female. 
 
 
Question 6: 
What is hymne? 
Solution 6: 
Hymen is a thin membrane which partially covers the opening of the vagina in young females. 
 
 
Question 7: 
Define the following terms: 
(a) Hernia    (b) Ovulation  (c) Puberty 
Solution 7: 
(a) Hernia: It is an abnormal condition which is caused when the intestine due to the pressure 
in abdomen bulges into the scrotum through the inguinal canal. 
(b) Ovulation:It is the release of the mature ovum by the rupture of the Graafian follicle 
(c) Puberty:It is the period during which immature reproductive system in boys and girls 
matures and becomes capable of reproduction. 
 
Class X Chapter 11 – The Reproductive System  Biology 
_____________________________________________________________________________ 
Question 8: 
List any two changes each in human male and female, which occur during puberty. 
Solution 8: 
Changes in human male: 
1. Development of Beard and moustache  
2. Voice becomes deeper 
Changes in human female: 
1. Development of Breasts in females 
2. Development of high pitched voice 
 
 
Question 9: 
Differentiate between the following pairs: 
(a) Menarche and menopause 
(b) Bulbo-urethral gland and prostate gland 
(c) Hymen and clitoris 
(d) Uterus and vegina 
(e) Efferent duct and sperm duct 
Solution 9: 
(a) Menarche is the onset of menstruation in young females at about 13 years of age whereas 
menopause is the permanent stoppage of menstruation at about 45 years of age. 
(b) Cowper's gland opens into urethra in human males and its secretion serves as a lubricant 
whereas the prostate gland surrounds the urethra in males and its alkaline secretion 
neutralizes acid in female's vagina. 
(c) Hymen is a thin membrane that partially covers the opening of vagina in young females 
whereas clitoris is a small erectile structure located in the uppermost angle of vulva in front 
of the urethral opening. 
(d) Uterus is a hollow, pear shaped muscular organ located in the pelvic cavity. It is the site of 
implantation for the embryo after fertilisation whereas the vagina is the muscular tube 
extending from the cervix to the outside. At the time of sexual intercourse, the vagina 
receives the male penis and provides entry for the sperms. 
(e) Efferent ducts join to form the epididymis whereas the epididymis is continued by the side 
of the testes to give rise to the sperm duct or vas deferens. 
 
 
D. LONG ANSWER TYPE: 
 
Question 1: 
What is the significance of the testes being located in scrotal sacs outside the abdomen. Can 
there be any abnormal situation regarding their locations? If so, what is that and what is the harm 
caused due to it?