Given below are four methods A-D and their modes of action i - iv in achieving contraception- Select their correct matching from the four options which follow-Method Mode of Action A Pill i Prevents sperms from reaching the cervix B Condom ii Prevents implantation C Vasectomy iii Prevents ovulation D Copper T iv Semen contains no sperms

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Byju's Answer

Standard XII

Biology

Progesterone and Its Functions

Given below a...

Question

Given below are four methods (A-D) and their modes of action (i) - (iv) in achieving contraception. Select their correct matching from the four options which follow.

A-(iii), B-(iv), C-(i), D-(ii)

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A-(iii), B-(i), C-(iv), D-(ii)

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A-(ii), B-(iii), C-(i), D-(iv)

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A-(iv), B-(i), C-(ii), D-(iii)

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Solution

The correct option is B
A-(iii), B-(i), C-(iv), D-(ii)

Pills: Check ovulation in females by inhibiting the secretion of follicle-stimulating hormone (FSH) and luteinising hormone (LH) which are necessary for ovulation.

Condom: It checks pregnancy by preventing deposition of the semen in the vagina.

Vasectomy: Although sperms are produced, they are reabsorbed into the body.

Copper T: Increases phagocytosis of spermatozoa within the uterus and the Cu ions released suppress motility of sperms as well as their fertilising capacity.

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Similar questions

Q. Given below are four methods of contraception (A)-(D) and their modes of action (i)-(iv) in achieving contraception .Select their correct matching form the four options that follow.

\begin{matrix} M e t h o d & M o d e o f a c t i o n A . T h e p i l l & (i) P r e v e n t s s p e r m s r e a c h i n g c e r v i x B . C o n d o m & (i i) P r e v e n t s i m p l a n t a t i o n C . V a s e c t o m y & (i i i) P r e v e n t s o v u l a t i o n D . C o p p e r - T & (i v) S e m e n c o n t a i n s n o s p e r m s \end{matrix}

Q. Given are four methods

(1 - 4)

and their modes of action (a-d) in achieving contraception. Select their correct matching from the four options that follows.

Method	Mode of Action
$(1)$ The pill	(a) Prevents sperms reaching cervix
$(2)$ Condom	(b) Prevents implantation
$(3)$ Vasectomy	(c) Prevents ovulation
$(4)$ LNG- $20$	(d) Semen contains no sperms

Q. Given below are four methods (A-D) and their modes of action (1-4) in achieving contraception. Select their correct matching from the four options that follow:

\begin{matrix} M e t h o d & M o d e o f A c t i o n (1) & T h e p i l l & P r e v e n t s s p e r m s r e a c h i n g c e r v i x (2) & C o n d o m & P r e v e n t s i m p l a n t a t i o n (3) & V a s e c t o m y & P r e v e n t s o v u l a t i o n (4) & C o p p e r - T & S e m e n c o n t a i n s n o s p e r m s \end{matrix}

Given below are four methods (A-D) and their mode of action (1-4) in achieving contraception. Select the correct pair from the options given below:

$\begin{matrix} Method & Mode of Action (a) & The pill & (1) & Prevents sperm reaching cervix (b) & Condom & (2) & Prevents fertilisation (c) & Vasectomy & (3) & Prevents ovulation (d) & Copper-T & (4) & Semen contains no sperm \end{matrix}$

Q. Choose the correct option.

Method	Mode of Action
(a) The pill	(i) Prevents sperms reaching cervix
(b) Condom	(ii) Prevents implantation
(c) Vasectomy	(iii) Prevents ovulation
(d) Copper T	(iv) Semen contains sperms

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