Biology

Human Reproductive System

786 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

Semen is made up of:

  1. fluid from the prostate

  2. sperm

  3. fluid from seminal vesicle

  4. All are correct
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Semen is a fluid mixture containing sperm from the testes, and secretions from the prostate gland and seminal vesicles.

Multiple choice

Where are sperm when 1st created? 

  1. Testes

  2. Epididymis

  3. Urethra

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

Sperm production, or spermatogenesis, occurs within the seminiferous tubules of the testes.

Multiple choice

What does fertile mean?

  1. Able to have offspring

  2. Not able to have offspring
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In biological terms, being fertile means an organism has the capability to reproduce and produce offspring.

Multiple choice

The egg is

  1. Male gamete

  2. Female gamete

  3. Both male and female gamete

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

In human reproduction, the egg (ovum) is the female gamete, while the sperm is the male gamete.

Multiple choice

In which would you expect to find a Barr body?

  1. an ovum

  2. a sperm

  3. a liver cell of a woman

  4. a liver cell of a man
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A Barr body is the inactive X chromosome in female somatic cells. Since women have two X chromosomes, one is inactivated in each cell. Men (XY) and gametes (sperm/ovum) do not have Barr bodies.

Multiple choice

The joining of an egg cell and a sperm cell is called

  1. gestation

  2. adaption

  3. asexual

  4. fertilization
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fertilization is the specific term for the union of a sperm cell and an egg cell to form a zygote. This is a fundamental step in sexual reproduction.

Multiple choice

What is meant by 'in vitro fertilisation'

  1. Asexual reproduction

  2. Embryo transfer

  3. Artificial insemination

  4. Process by which an egg is fertilised by a sperm 'in glass'
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In vitro fertilization (IVF) is a medical procedure where an egg is combined with sperm outside the body, literally 'in glass' (petri dish).

Multiple choice evs food trends types of ecological pyramids the muscular system and digestive system in human beings introduction to human digestive system

What is acrosomal reaction?

  1. Contact of sperms with egg

  2. Digestion of zona pellucida

  3. Disintegration of acrosome

  4. Contact of acrosome and nucleus of egg
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The acrosomal reaction involves the release of enzymes from the sperm's acrosome, which digest the zona pellucida of the egg to allow fertilization.

Multiple choice zoology endocrine system and chemical co-ordination hypothalamus nervous and endocrine system in humans coordination in human beings- chemical control

Choose the correct answer from the alternatives given.
Gonadotropin releasing hormone is secreted by:

  1. pituitary

  2. hypothalamus

  3. cerebellum

  4. gonads
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
GH- RH ( Gonadotropic releasing hormone ) secretes growth hormone (GH). GH or STH (Growth or Somatotropin Hormone) stimulates body growth, protein, fat, and carbohydrate metabolism. The hormone is secreted by adenohypophysis (anterior pituitary). Hypersecretion of this hormone during the period of skeletal growth causes gigantism characterized by excessive growth of bones, with the enlargement of internal organs as well. Hypersecretion in adulthood causes acromegaly. Here the bones become abnormally thick due to ossification of periosteum and thickening of soft tissues as well. 
So the correct answer is hypothalamus.