Biology

Human Reproductive System

751 Questions

The human reproductive system covers the anatomy of reproductive organs, gamete production, fertilization processes, and reproductive technologies. This is a highly scoring area in biology sections of competitive exams. Use these questions to practice key concepts.

Fertilization processGamete productionReproductive organ functionsAssisted reproductive technology

Human Reproductive System Questions

Multiple choice

Formation of fertilization membrane is a sort of defence reaction, primarily meant to

  1. prevent entrance of more than one sperm

  2. activate the egg to make it to undergo change

  3. bring change in the composition of cytoplasm

  4. induce physiological changes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The formation of the fertilization membrane (cortical reaction) is a defense mechanism that prevents polyspermy, ensuring that only one sperm fertilizes the egg.

Multiple choice

Cryptorchidism is a condition in which :

  1. testis are excised

  2. testis do not descend in the scrotal sacs

  3. testis do not nourish the sperm

  4. testis cannot produce sperm
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cryptorchidism or undescended testis (UDT) is one of the most common pediatric disorders of the male endocrine glands and the most common genital disorder identified at birth.

Multiple choice

Which of the following structures is immortal?

  1. Germ cells

  2. Testis

  3. Brain cells

  4. Scrotal cells
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Germ cells produce gametes and are the only cells that can undergo meiosis as well as mitosis. These cells are sometimes said to be immortal because they are the link between generations.

Multiple choice

Surgical removal or cutting and ligation of the ends of oviduct is known as

  1. tubectomy

  2. oviductomy

  3. castration

  4. vasectomy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sterilisation in woman is done by blocking the passage of ova in fallopian tubes either by cutting or by ligaturing these tubes. This is called tubectomy or salpingectomy. It is a major and complicated operation because the fallopian tubes are deeply located in the addomen. Sterllisation of man is done by Vasectomy in which the passage of sperms is blocked either by cutting or by putting ligatores around the vase deferenta. Castration or orchidectomy is the removal of testes. It produce eunuchs and changes aggressiveness of male into docile nature. 

Multiple choice

What is formed after fertilisation ?

  1. A sperm

  2. An ovum

  3. A zygote

  4. A gamete
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A zygote is formed after fusion of male and female gamete i.e sperm and egg respectively.

Multiple choice

Semen includes

  1. sperms

  2. secretions of accessory sex glands

  3. Both (1) and (2)

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Semen includes sperms and secretions of accessory sex glands. It is also known as seminal fluid.

Multiple choice

The capsule enclosing testes of mammals is called

  1. tunica albuginea

  2. tunica membrana

  3. tunica vaginalis

  4. tunica vasculosa
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The capsule enclosing testes of mammals is called tunica albuginea.The tunica albuginea helps to trap the blood in the corpora cavernosa, thereby sustaining erection of the penis.

Multiple choice

The middle piece of sperm provides

  1. chromosomes

  2. energy

  3. food

  4. genes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The middle piece of sperm provides energy.The midpiece has a central filamentous core with many mitochondria spiralled around it, used for ATP production for the journey through the female cervix, uterus and uterine tubes.

Multiple choice

The ovum passes down the oviduct by

  1. ciliary movements of the oviduct

  2. flagellar movements of the oviduct

  3. peristalitic movements of the oviduct

  4. influence of gravity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The ovum passes down the oviduct by influence of gravity.