MCQ of Reproductive System

In this article, we have explained some important Multiple choice Question Related to the Reproductive system. The Reproductive System is an important topic in the many competitive exams like NEET, NET < PGT, TGT, etc  

Qus.1 A cell’s capacity to divide into two equal daughter cells is known to as
(a) Mitosis
(b) Multiple fission
(c) Binary fission
(d) None of these

Ans-(c) Binary fission

Explanation
Binary fission refers to “division into two”. It is the ordinary and most usual process of asexual reproduction. In the binary fission method, the organism replicates its genetic material, or deoxyribonucleic acid (DNA), before dividing into two sections (cytokinesis), with each new element obtaining a single copy of DNA. Multiple fission is the asexual reproduction procedure, in which many daughter cells are developed from the parent cell instead of two daughter cells.

Qus2 Normally how many pairs of autosomes are there in humans?
(a) 12
(b) 24
(c) 20
(d) 22

Ans-(d) 22

Explanation
Normally 22  pairs of autosomes are there in humans. All chromosomes except sex hormones are autosomes. Chromosomes are thread-like structures present in the nucleus. It becomes visible during the procedure of cell division. Humans have 23 pairs of chromosomes i.e. the total number of chromosomes (is 46 chromosomes). Humans have 22 pairs of autosomes means a total no of  (44 autosomes) and one pair of allosomes means a sex chromosome. An allosome is equal in shape, form, and behaviour. differs from autosomes. The sex Chromosome is represented by the two symbols that are X and Y., X Chromosome for Male and Y Chromosome for Female.

Qus3 Where sperm are temporarily kept?
(a) Epididymis
(b) Vas-deferens
(c) Bladder
(d) All of these

Ans-(a) Epididymis

Explanation
The sperm is temporarily kept in the epididymis. There are approximately 300 million sperm cells created every day, and each one takes 65 to 75 days to develop. Inside the testes, sperm are produced in the organ that is called the seminiferous tubules. 
The epididymis, which stores sperm, is placed at the top and back of each testicle (testis).

Qus4 Which of the following organ in the human body does the fertilisation process occur?
(a) Uterus
(b) Fallopian tube
(c) Ovary
(d) Vagina

Ans- (b) Fallopian tube

Explanation
The procedure of fertilization in the human body involved human eggs and sperm in the fallopian tube. There is another procedure known as IVF, which stands for “In Vitro Fertilization,” which later results in the production of a zygote cell or fertilizes an egg. The process of fertilization in humans in the first stage begins with ejaculation during
copulation and ovulation. The fallopian tube is also referred to as the uterine tube or salpinges.

Qus5 What is a fertilized cell called?
(a) Embryo
(b) Ovary
(c) Zygote
(d) None of the above

Ans- (c) Zygote

The fertilized cell is called the zygote. The result of fertilization is a zygote, which divides frequently and moves down the oviduct shortly after fertilization. Sexual reproduction constitutes the development of male and female gametes. A zygote is generated by the fusion of gametes. A zygote is developed inside the body of the organism.

Q.6 Which hormone is decreased in the menstrual cycle causing menstruation?
(a) Progesterone
(b) luteinizing
(c) Estrogen
(d) None of These

Ans- (a) Progesterone

Explanation
Menstrual cycle:
Menstruation is the monthly passage of blood and mucosal tissue from the inner lining of the uterus via the vagina. Hormone fluctuations that occur during the menstrual cycle are distinctive. Decreasing progesterone levels cause menstruation, which is a sign that pregnancy has not yet occurred. The cycle is repeated every 28 or 29 days.
There are four phases in the menstrual cycle:
1. Menstrual phase 
2. Follicular phase 
3. Ovulatory phase 
4. Luteal phase

Qus7 Which of the following is not a component of the female reproductive system?
(a) A pair of ovaries
(b) Sperm duct
(c) Uterus
(d) Oviducts

Ans- (b) Sperm duct

Explanation
The sperm duct is not a component of the female reproductive system. The male reproductive organs make up of a pair of testes, sperm ducts, and a penis. The sperms are generated by the testes. The sperms are incredibly tiny in size with a head, a middle piece, and a tail. The female reproductive organs make up of a pair of ovaries, oviducts, and the uterus. The ovaries are responsible for producing eggs (ova).

Qus.8 Name the hormone which is at its peak during ovulation.
(a) Progesterone
(b) Estrogen
(c) FSH
(d) LH

Ans-(d) LH
A mature egg is released from one of the ovaries during ovulation. The egg is released and then travels into the fallopian tube, where it may be fertilized by a sperm cell. luteinizing hormone (LH). LH is quickly released when estrogen levels are high enough to cause it. It normally occurs on or around cycle day thirteen. LH at the peak during ovulation. Luteinizing hormone is generated and secretes in the anterior pituitary gland.

Que. 9  Which is not a component of the female reproductive system?
(a) Eggs produce
(b) Uterus
(c) White Discharge
(d) Vas deferens

Ans-(d)  Vas deferens

Explanation
Vas deferens are not a component of the female reproductive system. Vas deferens are also referred to as ductus deferens or sperm ducts. It is a long muscular tube, which extends from the epididymis into the pelvic cavity posterior to the bladder and connects with the urethra via a composition referred to as the ejaculatory duct. It helps in the transportation of produced sperm to the urethra preparation ready for ejaculation.

Que.10  The external genitalia of the female are collectively called the
(a) labia
(b) vulva
(c) clitoris
(d) mons pubis

Ans-(b) Vulva

The vulva is the upper part of the female genitalia, involving the labia majora, labia minora, and clitoris.
The vulva is the collective term for external genitalia of the female reproductive system and involved the pudendal cleft, mons pubis, Bartholin glands, clitoris, labia majora, and labia minora, Vagina.

Que.11 Which of the following performs the function of luteinizing hormone?
(a) It stimulates the interstitial (Leydig) cells to produce testosterone.
(b) It encourages the production of sperm by sustentacular (Sertoli) cells.
(c) It stimulates the anterior pituitary to release FSH.
(d)  None of these

Ans-(a) It stimulates the interstitial (Leydig) cells to produce testosterone

Explanation
LH stimulates testosterone production from the interstitial cells of the testes. Luteinizing hormones are known as gonadotropic hormones. It is generated and secreted by the group of cells of the anterior pituitary gland. It is the most specific hormone that regulates the reproductive system by controlling the function of female reproductive organs like ovaries and male reproductive organs like testes.

Que12 Which organ is responsible for transporting sperm from the testicles to the prostate gland?
(a) Vas deferens
(b) Fallopian tube
(c) seminiferous tubule
(d) All of the Above

Ans-(a) Vas deferens
Explanation
The Vas deferens organ is responsible for transporting sperm from the testicles to the prostate gland. It collects the sperm and moves it out of the scrotal sac. The vas deferens are present between the epididymis and the urethra and attach these together.

Que. 13 Which cells of the testes secrete testosterone?
(a) Sertoli cells
(b) Cells of germinal epithelium
(c) Leydig Cells or Interstitial cells
(d) Secondary spermatocytes

Ans-(c) Leydig Cells or Interstitial cells
Explanation
Leydig Cells or Interstitial cells of the testes secrete testosterone. Leydig cells are interstitial cells placed close to the seminiferous tubules in the testes. Leydig cells are to produce the other hormone androgen, testosterone, under the pulsatile control of pituitary luteinizing hormone (LH). Leydig cells are the main source of testosterone or androgens in males.

Que.14 Which of the following is an assisted reproductive gland in male mammals
(a) Fundic gland
(b) Prostate gland
(c) Mushroom-shaped gland
(d) Gastric gland

Ans-(b) Fundic gland

Explanation
The prostate gland is the only exocrine gland that is situated between the bladder and penis in male mammals. The prostate gland developed a large amount of fluid, which makes up the semen when combined with sperm. Now those the gastric glands or fundic glands are present in the body, the gastric of the mucosa and fundus of the stomach (in all mammals), the mushroom-shaped gland is not found in males and the inguinal canal is the passage in the abdominal wall present in men and women body.

Qus15 What is another name for the bulbourethral gland?

(a) Meibomian gland
(b) Prostate gland
(c) Perineal gland
(d) Cowper’s gland

Ans- (d) Cowper’s gland
Explanation
A bulbourethral gland is another name Cowper gland is a pair of exocrine glands found in the male reproductive system. They are roughly the size of a pea and situated in inferior to the prostate gland and lateral to the urethra in the urogenital diaphragm. The secretions generated by the Cowper’s glands help to cover sperm as it passes through the urethra throughout ejaculation.

Qus16 Which glands are responsible for the secretion to neutralize the acidity of the fluid (semen)?
(a) Cowper’s glands 
(b) Seminal glands 
(c) Spermatogonia glands 
(d) Prostate glands

Ans- (d) Prostate glands

Explanation
The prostate gland is responsible for secretion to neutralize the acidity of fluid (semen). The prostate gland produced a high amount of fluid, which creates semen when connected with sperm. A white fluid is produced by the prostate gland. The fluid consists of phosphate, lysozymes, spermin, citrate, fibrinolysin, and other chemicals. Its secretions both encourage sperm production and stop sperm coagulation

Qus17 Who are Primary spermatocytes produced?
(a) spermatogonia 
(b) oogonia 
(c) primary spermatids 
(d) secondary spermatids

Ans-(a) spermatogonia

Explanation
Primary spermatocytes are produced by spermatogonia. The spermatozoa (2N) located in the inner part of the seminiferous tubules are deposited by mitosis and increase in number. They stop undergoing division by mitosis and develop or become primary spermatocytes (2N). Each primary spermatocyte undergoes the process of meiosis to form two identical haploid secondary spermatocytes (N). Each secondary spermatocyte then undergoes second meiosis to form four homologous. The haploid cells are known as spermatozoa (N). Spermatids obtain nutrition to make sperm through a process called spermatogenesis.

Qus 18 The sac of skin in which the testes are located is called
(a) seminiferous tubules 
(b) vas deferens 
(c) epididymis 
(d) scrotum

Ans- (d) scrotum

Explanation
The sac of skin in which the testes are located is called Scrotum. The scrotum, a thin outer sac of skin that is divided into two sections, is present in the male reproductive system; Each segment contains one of two testes, the glands that produce sperm, and one of the epididymides, where sperm are stored.

Qus.19 Which of the following cells synthesize and secrete testicular hormones in humans?
(a) Sertoli cells
(b) Mucus cells
(c) Spermatogonia
(d) Leydig cells

Ans-(d) Leydig cells

Explanation
Leydig cells synthesize and secrete testicular hormones (androgens) in humans (man). The male reproductive system has a pair of testes with accessory ducts, glands, and upper genitals. Each testis contains about 250 compartments known as testicular lobules. Each lobule contains one to three highly coiled semicircular tubules in which spermatozoa are produced. Each seminiferous tubule is lined in its interior by two types of cells known as male germ cells (spermatogonia) and Sertoli cells.

Q.20 Which is the primary sex organ in a man?
(a) Prostrate
(b) Testis
(c) Vas deferens
(d) Seminal vesicles

Ans-(b) Testis

Explanation
The testes are the primary sex organs or reproductive organs in males. The testes are controls for testosterone and sperm production. Each testis is 4–5 cm long, 2–3 cm wide and weighs about 10–14 g. Males have two testicles of the same size. They are attached to the scrotum which is an extension of the abdominal wall. One testicle is more stranded in the scrotum than the other.