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NEET BIOLOGYReproductive HealthMedium

Question

Birth control pills contain synthetic estrogen and progesterone. How might these hormones prevent pregnancy?

A

They cause the corpus luteum to degenerate.

B

They keep the pituitary from secreting FSH and LH, so ovulation does not occur.

C

They cause the lining of the uterus to be sloughed off.

D

They trigger premature ovulation, before an egg is mature.

Step-by-Step Solution

According to the NCERT text, oral contraceptives (pills) work by inhibiting ovulation and implantation. Physiologically, high levels of these hormones (progestogens or progestogen-estrogen combinations) exert negative feedback on the pituitary gland, suppressing the secretion of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH), which are necessary for follicle maturation and the LH surge that triggers ovulation , .

Exam Context & Concepts Covered

This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Reproductive Health. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

BIOLOGYReproductive Healthcontrolcontainsyntheticestrogenprogesterone

More Reproductive Health Questions

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What is the full form of IUDs?

A.Inter Uterine Devices
B.Intra Uterine Diseases
C.Intra Uterine Devices
D.Inter Uterine Diseases
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In the assisted reproductive technology where gametes have been fertilized in vitro, which of the following is practicable for embryo transplantation in fallopian tube?

A.Only embryo (up to 8 blastomeres if zygote is not transplanted)
B.Only zygote is transplanted, not embryo
C.Either embryo or zygote with up to 8 blastomere phase transplanted
D.Morulla with 8-24 celled stage is transplanted in fallopian tube
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MTP was legalised in India in:

A.1971
B.1951
C.1981
D.1923
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Match the contraceptive method 'Pill' with its primary mode of action: I. Pill

A.Prevents implantation
B.Prevents ovulation
C.Prevents sperms from reaching cervix
D.Semen contains no sperms
EasySolve

MTP is:

A.Medical Termination of Pregnancy
B.Also called induced abortion
C.Both (1) and (2)
D.-2
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Which of the following cannot be detected in a developing foetus by amniocentesis?

A.Klinefelter's syndrome
B.Sex of the foetus
C.Down's syndrome
D.Jaundice
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Natural methods for contraception work on the principle of:

A.Preventing fertilization
B.Preventing implantation
C.Preventing ovulation
D.Preventing embryo development
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Which of the sets of diseases are completely curable if detected early?

A.Hepatitis - B, Gonorrhoea, Syphilis
B.Genital herpes, Chlamydiasis, Syphilis
C.HIV Infections, Chlamydiasis, Gonorrhoea
D.Chlamydiasis, Syphilis, Gonorrhoea
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