Test: Male And Female Reproductive System


5 Questions MCQ Test Biology Class 12 | Test: Male And Female Reproductive System


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QUESTION: 1

Corpus luteum in mammals occurs in:

Solution:
  • The corpus luteum is a temporary endocrine structure in female mammals, that is involved in the production of high amounts of progesterone.
  • The corpus luteum develops from an ovarian follicle present in the ovary during the luteal phase of the menstrual cycle. Once, the secondary oocyte is released from the follicle during ovulation, it results in the formation of corpus luteum.
QUESTION: 2

Cervix is a part:

Solution:

► Cervix: The cervix is the lowest part of the uterus. It’s lined with a smooth mucous membrane and connects the uterus to the vagina. Glands in the cervical lining usually produce a thick mucus. However, during ovulation, this becomes thinner to allow sperm to easily pass into the uterus.

► The cervix has three main parts:
Endocervix: This is the inner part of the cervix that leads to the uterus.

► Cervical canal: The cervical canal links the uterus to the vagina.

► Exocervix: The exocervix is the outer part of the cervix that protrudes into the vagina.

QUESTION: 3

In which part of sperm are mitochondria present?

Solution:

Mitochondria is present in the middle piece of sperm. It provides energy to sperm movement by producing energy rich compounds like ATP.

QUESTION: 4

Acrosome is made up of:

Solution:

The acrosome is the part on the head of the sperm. It releases acrosin & is located on the tip and it is made of chemicals to dissolve the membrane of the egg so that it can fertilize it It is formed with the help of golgi bodies / golgi apparatus.

QUESTION: 5

Seminal plasma, the fluid part of semen is contributed by:
(i) Seminal vesicle
(ii) Prostate
(iii) Urethra
(iv) Bulbourethral gland​

Solution:
  • Seminal plasma is the fluid part of semen and is contributed by seminal vesicles, prostate gland and bulbourethral glands. Seminal vesicles contribute fructose, citric acid and other nutrients as well as fibrinogen and prostaglandin.
  • Secretions from prostate gland contain calcium ions, phosphate Ion, etc. and are alkaline in nature.
  • Bubo urethral glands secrete alkaline mucus which is important for the lubrication of penis.

So, the correct answer is '(i), (ii) and (iv)'.