Short Answer Questions on Reproductive System Class 10 Concise ICSE Biology Selina Solutions Ch-13. In this article you will get the solutions / answer of Short Ans Questions / Problems. Visit official website CISCE for detail information about ICSE Board Class-10 Biology.

Short Answer 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 Short Ans Type Questions

 Short Ans Questions on Reproductive System of Human

Que-1: 

(a) State whether the following statements are TRUE (T) or FALSE (F):
(i) Fertilization occurs in vagina. (T/F)
(ii) Uterus is also known as birth canal. (T/F)
(iii) Nutrition and oxygen diffuse from the mother’s blood into the foetus’s blood through amnion. (T/F)
(b) Rewrite any two of the wrong statements by correcting only one word either at the beginning or at the end of the sentence.

Ans:
(a)
(i) False
(ii) False
(iii) False
(b)
(i) Fertilization occurs in the fallopian tube.
(ii) Vagina is also known as the birth canal.
(iii) Nutrition and oxygen diffuse from the mother’s blood into the foetus’s blood through placenta.

Que-2: Complete the following table by writing the name of the structure or the function of the given structure:

Structure	Function
1. corpus luteum	1.—–
2. —–	2. produces male gametes in mass
3. Leydig cells	3. —–
4. —–	4. increases the force in uterine contractions
5. umbilical cord	5. —–
6. fallopian tube	6.—–

Ans:

Structure	Function
1. Corpus luteum	1. secretes progesterone & other hormones to prepare the uterine wall for the receival of the embryo.
2. Testes	2. produces male gametes in mass
3. Leydig cells	3. to produce the androgen, testosterone, under the pulsatile control of pituitary luteinizing hormone (LH)
4. Oxytocin	4. increases the force in uterine contractions during child birth
5. Umbilical cord	5. connects placenta with foetus
6. Fallopian tube	6. The site of fertilization for the sperm and ovum

Que-3: Given below are the names of certain stages/substances related to reproduction and found in human body.

(a) Foetus

• Where is it contained?
• How does it differ from embryo?

(b) Hyaluronidase

• Is it an enzyme or simply a protein?
• What is its function?

(c) Morula

• What is this stage?
• Name the stage which comes next to it.

(d) Amniotic fluid

• Where is it found?
• What are its functions?

(e) Placenta

• What are the two sources that form placenta?
• Name any two main substances which pass from foetus to mother through placenta.
• Name any two hormones it produces.

(f) Implantation

• The development stage that undergoes this process.
• The approximate time after fertilization, when it occurs.

Ans:
(a) Foetus:

• It is contained in the uterus.
• In foetus, limbs have appeared and resembles the humans unlike the embryo which is a growing or dividing zygote.

(b) Hyaluronidase:

• Enzyme
• It is an enzyme secreted by the sperm that allows the sperm to penetrate the egg.

(c) Morula:

• It is the stage in the development of human embryo which consists of a spherical mass of cells. Blastocyst

(d) Amniotic fluid:

• Between amnion and embryo
• It protects the embryo from physical damage, keeps the pressure all around embryo and prevents sticking of foetus to amnion.

(e) Placenta:

• Placenta is formed by two sets of minute finger like processes called the villi. One set of villi is from the uterine wall and the other set is from the allantois.
• Oxygen and amino acids.
• Progesterone and oestrogen.

(f) Implantation:

• Blastocyst
• It occurs in about 5-7 days after ovulation.

Que-4: Write important functions of the following :

(a) Inguinal canal
(b) Testis
(c) Ovary
(d) Oviduct
(e) Uterus

Ans:
(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) 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.
(c) Ovary : Ovary is a female reproductive organ. It produces ova i.e. female gametes.
(d) Oviduct : A pair of oviduct is present on either side of the uterus. Oviduct carries the released ovum from the ovary to the uterus.
(e) Uterus : The uterus is responsible for nurturing and housing a developing fetus during pregnancy.

Que-5: Write the specific location of each of the following :

(a) Seminal vesicle(b) Uterus(c) Placenta
(d) Acrosome
(e) Vagina

Ans:
(a) Seminal vesicles are located between the posterior surface of the urinary bladder and the rectum in males.
(b) Uterus is situated in the pelvic cavity between the urinary bladder and the rectum in females.
(c) Placenta is attached to the uterine wall.
(d) Head of sperm.
(e) Vagina starts from lower end of uterus to outside.

–:  End of Short Answer Questions on Reproductive System Class 10 Concise ICSE Biology Selina Ch-13 solutions :–

Return to :  Concise Biology for ICSE Class 10 Selina Solutions
Please share with your Friends if helpful
Thanks