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
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seminiferous tubules
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vas deference
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seminal vesicle
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Cowper’s gland
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rete testes
B
Correct answer
Explanation
Sperm is stored in vas deference. A small quantity of sperm can be stored in epididymis, but most are stored in vas deference. So, this is the right answer.
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corpus luteum
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tunica albuginea
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corpus albicans
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corpus callosum
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corpus allatum
A
Correct answer
Explanation
After liberation of oocyte, the graafian follicle is converted into corpus luteum. So, this answer is right.
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seminiferous tubules
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vas deference
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epididymis
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seminal vesicle
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prostate gland
C
Correct answer
Explanation
In epididymis sperm develops the capability of motility, but several inhibitory proteins in epididymal fluid still prevent final motility until after ejaculation. So, this answer is right.
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scrotum
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testes
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seminiferous tubules
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ovary
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prostate gland
C
Correct answer
Explanation
In seminiferous tubules, spermatogenesis occurs. So, this answer is right.
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Testosterone
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Luteinizing hormone
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Follicle stimulating hormone
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Growth hormone
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Inhibin
C
Correct answer
Explanation
Follicle stimulating hormone also secreted by anterior pituitary gland stimulates sertoli cells without this stimulation, the conversion of spermatid to sperm will not occurs. So, this is right answer.
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generative cell
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tube cell
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body cell
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prothallial cell
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Spermiogenesis
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Spermatogenesis
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Oogenesis
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Spermatolysis
A
Correct answer
Explanation
The spermatids change into sperm. This process is known as spermiogenesis/spermatoleosis.
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Perivitellin space
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Pericardial space
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Both 1 & 2
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None of the above
A
Correct answer
Explanation
The space between primary membrane & female gamete is Perivitellin space.
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cells of the prostate gland
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leydig cells
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sertoli cell
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cells of the seminal vesicles
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cells of Cowper’s Glands
C
Correct answer
Explanation
A Sertoli cell is a 'nurse' cell of the testes. The MIS glycoprotein is produced by Sertoli cells of the testes during fetal and neo-natal life in males.
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Sperm transit
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Testosterone production
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Maintaining the blood–testis barrier
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Sperm storage
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Sperm nourishment
A
Correct answer
Explanation
Both the epididymis and the vas deferens are made up of ducts, which have muscular components. These muscular parts aid in peristalsis, which helps move spermatozoa along the ducts.
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Metabolic support of developing spermatozoa.
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Synthesis of inhibin and antimullerian hormone.
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Maintaining the position of primordial germ cells against the basement membrane.
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Maintenance of the blood–testis barrier.
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Aromatisation of androgen precursors to estrogen.
C
Correct answer
Explanation
Primordial germ cells are maintained against the basement membrane of the seminiferous tubules; Sertoli cells do not appear to have a role in this process.
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Leydig cell stimulation
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Decreased Mullerian inhibiting substance
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Initiation of spermatogenesis
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Increased mass of seminiferous tubules
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Spermatogenesis occurs in many structures of the male reproductive system
B
Correct answer
Explanation
Mullerian inhibiting substance (MIS) is responsible for causing the müllerian ducts to degenerate, accounting for the sole development of male internal genitalia in a fetus with a functional testis. If it is absent during fetal development, female internal genitalia would develop by default.
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Felicitation
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Felitation
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Fertilation
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None
A
Correct answer
Explanation
Felicitation is the correct spelling, meaning the action of expressing congratulations or praise. Options B and C are misspelled variations, and Option D is incorrect since there is a valid answer.
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Testicular lobules
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Seminiferous tubule
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Scrotum
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Sertoli cells
C
Correct answer
Explanation
The scrotum is a pouch of skin that hangs outside the abdominal cavity, keeping the testes at a temperature slightly lower than the body temperature, which is essential for successful spermatogenesis.
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The spermatids differentiate into structurally different complex.
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Fertilization is a physico-chemical event.
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Cleavage transforms the fertilized ovum into a sphere of aggregated blastomeres.
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Cleavage divisions bring appreciable increase in the mass of protoplasm in the developing embryo.
D
Correct answer
Explanation
Cleavage involves rapid mitotic divisions that increase the number of cells (blastomeres) without increasing the overall size or mass of the embryo. Therefore, the statement that it brings an appreciable increase in the mass of protoplasm is incorrect.