Biology

Human Reproduction and Contraception

742 Questions

Human reproduction and contraception focus on the menstrual cycle, hormonal changes, pregnancy, and various contraceptive methods. These topics are frequently asked in general science sections. Practice these questions to master the fundamentals of reproductive health.

Menstrual cycle phasesMenopause and hormonesReproductive health problemsContraceptive methods overview

Human Reproduction and Contraception Questions

Multiple choice

Depo-Provera is also known as

  1. condom

  2. oral pill

  3. hormone injection

  4. IUCD

  5. tubectomy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Depo-Provera is also known as hormone injection.

Multiple choice

Femidoms are also known as

  1. cervical caps

  2. vault caps

  3. ParaGard

  4. female condoms

  5. LNG-20
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Femidoms are also known as female condoms.

Multiple choice

The birth control pills contain hormonal formulations that may either arrest the ovulation or prevent the fertilization of egg. Some of the formulations do both. Which one of the following combinations represents a formulation that is likely to affect the process of ovulation and fertilization?

  1. Progesterone and estrogen

  2. Prostaglandin and estrogen

  3. Gonadotrophin and estradiol

  4. Prolactin and estradiol
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Combined oral contraceptive pills typically contain synthetic estrogen and progesterone. These hormones work by suppressing the release of gonadotropins (FSH and LH), thereby inhibiting ovulation, and by altering cervical mucus to prevent sperm from reaching the egg.

Multiple choice

What is a life cycle?

  1. changes that occur from adult to egg

  2. changes that occur from egg to adult

  3. changes that occur from generation to generation

  4. changes that occur from day to night
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A life cycle describes the series of developmental stages an organism goes through from the beginning of its life (egg/birth) to adulthood and reproduction.

Multiple choice

Which is the best probe to use to prevent over inserting in the follicle?

  1. bulbous

  2. tapered

  3. cylindrical

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

A bulbous probe is designed with a rounded tip that is wider than the shaft, which helps prevent it from piercing the follicle wall and over-inserting. Tapered and cylindrical probes are more likely to penetrate the follicle wall if not handled carefully.

Multiple choice biology for the continuity of generation reproductive systems different stages of growth reproductive system in humans

Fill up the blanks in the following paragraph by selecting the correct option.
(i) are the primary female sex organs that produce (ii) and (iii). Each primary sex organ is about (iv) in length and is connected to the pelvic wall and uterus by (v).

  1. (i)-Testes, (ii)-sperms, (iii)-hormones, (iv)-4-5 cm, (v)-ligaments

  2. (i)-Ovaries, (ii)-oogonia, (iii)-follicles, (iv)-2-4 cm, (v)-muscles

  3. (i)-Ovaries, (ii)-ovum, (iii)-hormones, (iv)-2-4 cm, (v)-ligaments

  4. (i)-Testes, (ii)-sperms, (iii)-testosterone, (iv)-8-9 cm, (v)-muscles
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ovaries are the primary female sex organs that produce the female gamete/germ cell ovum and several steroid hormones such as estrogen and progesterone also called ovarian hormones. Each ovary is about 2-4 cm in length and is connected by ligaments to the pelvic wall and the uterus.  Each ovary is whitish in colour and located alongside the lateral wall of the uterus and the other side points downwards attached to the uterus via the ovarian ligament.

So, the correct option is '(i)-Ovaries, (ii)-ovum, (iii)-hormones, (iv)-2-4 cm, (v)-ligaments'.

Multiple choice biology division for growth and reproduction reproductive systems different stages of growth reproductive system in humans human system

Match column I (terms) with column II (definitions) and select the correct options from the codes given.

Column I Column II
A. Parturition (i) Attachment of embryo to endometrium
B. Gestation (ii) Release of egg from Graafian follicle
C. Ovulation (iii) Delivery of baby from uterus
D. Implantation (iv) Duration between pregnancy and birth
E. Conception (v) Formation of zygote by fusion of the egg and sperm
(vi) Stoppage of ovulation and menstruation

  1. A - (ii), B - (iv), C - (i), D - (v), E - (vi)

  2. A - (iv), B - (iii), C - (i), D - (v), E - (ii)

  3. A - (v), B - (vi), C - (ii), D - (iii), E - (iv)

  4. A - (iii), B - (iv), C - (ii), D - (i), E - (v)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Parturition is the delivery or childbirth of baby from the uterus. Gestation is the period of development during the carrying of an embryo or fetus inside viviparous animals and the duration between pregnancy and birth. Ovulation is the process of release of the ovum from the Graafian follicle as it ruptures. Implantation is the process of attachment of the zygote to the endometrial lining of the uterus. Conception refers to the post-fertilization fusion of the egg and sperm into the zygote.

So, the correct option is 'A - (iii), B - (iv), C - (ii), D - (i), E - (v)'.

Multiple choice zoology excretory system of human other excretory organ role of other organs in excretion accessory excretory organs

Which set is similar?

  1. Corpus luteum : graafian follicles

  2. Sebum : sweat

  3. Bundle of his : Pace maker
  4. Vita $B _7$: Niacin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sebum is an oily secretion produced by sebaceous glands, tiny ducts adjacent to hair follicles. Sebum is secreted into the follicle, from which it spreads over the hair and skin. The main role of sebum is to waterproof the skin and hair. Sweat is a salty, watery solution produced by sweat glands, numerous microscopic channels opening onto the skin surface. As sebum and sweat mix up on the skin surface, they form a protective layer often referred to as the acid mantle . Acid mantle has a particular level of acidity characterized by pH from about 4 to 5.5. A pH of 7 is considered neutral, above 7 is alkaline, and below is acidic. 


So, the correct option is 'Sebum : Sweat'.

Multiple choice biology the age of adolescence earthworm - reproductive system reproduction in earthworm introduction to reproduction

Estrous cycle is characteristic of

  1. Human females

  2. Mammalian females

  3. Mammalian females other than primates

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

The menstrual cycle refers to the series of events that periodically modifies the female reproductive tract of humans and advanced primates. In other mammals, a cycle of receptivity to sexual activity occurs that is probably less complex than the menstrual cycle and is known as the estrous cycle.

Therefore, the correct answer is option C.

Multiple choice biology the age of adolescence earthworm - reproductive system reproduction in earthworm introduction to reproduction

A secondary sexual character is

  1. Breast

  2. Ovary

  3. Testis

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

Those structures which are directly concerned with reproduction are considered primary sex characteristics. Secondary sexual characters can be used to differentiate between males and females and usually serve the purpose of attracting potential mates. Testosterone is responsible for male secondary sex characteristics such as a deep voice and facial hair. In the female, the hormones that most nearly parallel testosterone in their actions are the estrogens. Estrogens contribute to the development of the female secondary sex characteristics and stimulate the development of the mammary glands (breast in this question), the onset of menstruation, and the development and functioning of the reproductive organs. The other hormone produced by the female sex glands, called progesterone, assists in the normal development of pregnancy.

Therefore, the correct answer is option A.

Multiple choice biology the age of adolescence earthworm - reproductive system reproduction in earthworm introduction to reproduction

Which of the following is correct?

  1. Menstrual cycle is present in all mammals.

  2. Menstrual cycle is present in all primates.

  3. Estrous cycle occurs in all mammals.

  4. Most mammals are ovoviviparous.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The process of formation of mature female gametes is called oogenesis. The reproductive cycle of female primates is called menstrual cycle. Menstrual cycle starts only after attaining sexual maturation (puberty). During ovulation only one ovum is released per menstrual cycle. The cyclical changes in the ovary and the uterus during menstrual cycle are induced by changes in the levels of pituitary and ovarian hormones.

Multiple choice biology the age of adolescence earthworm - reproductive system reproduction in earthworm introduction to reproduction

Estrous cycle is indication of

  1. Breeding period

  2. Estrogen secretion

  3. Menopause

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

The recurring physiological changes induced and regulated by reproductive hormones in non-primates constitute oestrous cycle. It consists of short period of heat generation which is then followed by anoestrous phase. Oestrous cycle is initiated as a result of no fertilization and is characterized by sloughing off of uterine endometrium, which was proliferated for implantation of fertilized egg, and its reabsorption. Since, non primate females become receptive to male during oestrous phase, it is indicator of breeding period. Estrogens are secreted by developing follicles in ovary during follicular phase coincide with first oestrous (low estrogens) and then proliferative phase (high level of estrogens by developing follicles) in uterus.This makes option B incorrect since, estrogens level is low during oestrous cycle. 

Menopause is the cessation of monthly cycle wherein ovaries do not respond to gonadotropic hormones produced by the anterior pituitary and do not secrete estrogens and progesterone, it is unique to primate females while oestrous cycle is unique to non primates which makes option C incorrect. Pregnancy is marked by cessation of oestrous cycle, option D is incorrect. Therefore, the correct answer is option A.