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Karnataka Board PUCPUC Science 2nd PUC Class 12

Condoms are one of the most popular contraceptives becuase of the following reasons.

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Question

Condoms are one of the most popular contraceptives becuase of the following reasons.

Options

  • These help in reducing the risk of STDs

  • They do not interfere with coital act

  • These are effective barriers for insemination

  • All of the above

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Solution

All of the above

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Chapter 4: Reproductive Health - MULTIPLE CHOICE QUESTIONS [Page 25]

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NCERT Exemplar Biology Exemplar [English] Class 12
Chapter 4 Reproductive Health
MULTIPLE CHOICE QUESTIONS | Q 10. | Page 25

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Correct the following statement:

Surgical methods of contraception prevent gamete formation.


Correct the following statement:

Oral pills are very popular contraceptives among the rural women.


Answer the following question.

Describe the various methods of birth control to avoid pregnancy.


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What is the method of male known as?


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What is the term used for the gonorrhoea infection caused to girls before puberty?


Which of the following are chemical barriers used as contraceptives?


Choose the correct option:

Sterilisation techniques are generally fool proof methods of contraception with least side effects. Yet, this is the last option for the couples because:

  1. It is almost irreversible
  2. Of the misconception that it will reduce sexual urge/drive
  3. It is a surgical procedure
  4. Of lack of sufficient facilities in many parts of the country

Match List - I with List - II.

List I List II
(a) Vaults (i) Entry of sperm through
Cervix is blocked
(b) IUDs (ii) Removal of Vas deferens
(c) Vasectomy (iii) Phagocytosis of sperms
within the Uterus
(d) Tubectomy (iv) Removal of the fallopian tube

Choose the correct answer from the options given below.


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Given below are four contraceptive methods and their modes of action. Select the correct match:

Method Mode of action
a) Condom (i) Ovum not able to reach Fallopian tube
b) Vasectomy (ii) Prevents ovulation
c) Pill (iii) Prevents sperm reaching the cervix
d) Tubectomy (iv) Semen contains no sperms

Identify the incorrect statement regarding ‘Saheli’.

  • Statement I: It's an oral steroid contraceptive developed by ORI.
  • Statement II: It has a low contraceptive value and a high chance of side effects.

Name and explain a surgical contraceptive method that can be adopted by the male partner of a couple.


Given below are certain situations. Analyse the situation and suggest the name of suitable contraceptive device along with mode of action.

Situation Requirement of contraceptive for - Name of contraceptive device Mode of action
1 blocking the entry of sperms through cervix ______ ______
2 spacing between children ______ ______
3 effective emergency contraceptive ______ ______
4 terminal method to prevent any more pregnancy in female ______ ______
5 sterilization in male ______ ______

Match the columns :

  Column 'A'   Column 'B'
1 Mechanical means a Saheli
2 Physiological device b Jellies
3 Chemical device c Vasectomy
4 Permanent method d Diaphragm

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