Question

Class 10BiologyHow Do Organisms Reproduce

Read the following and answer any four questions from (i) to (v).

A married woman used a device X made of common metal for preventing pregnancy. This device was put into her uterus by some trained medical professional. Unfortunately, she got pregnant after two months of insertion of device. She was in shock to learn that her birth control device has failed.

(i). What is the name of birth control device used by the woman?

  1. Foam tablets.
  2. Copper T.
  3. Diaphragm.
  4. Both (a) and (b).

 

(ii). Which metal is commonly used for making device X?

  1. Iron.
  2. Copper.
  3. Silver.
  4. Gold.

 

(iii). How does device X prevent pregnancy?

  1. It prevents ovulation.
  2. It prevents copulation.
  3. It suppresses fertilising capacity of sperm.
  4. None of these.

 

(iv). Why do you think the woman got pregnant even after using device X?

  1. Device X might have got expelled without the knowledge of woman.
  2. Device X might be defective and was not working from the beginning.
  3. Device X could have been destroyed by the uterine fluid.
  4. None of these.

 

(v). Select the correct statement regarding device X.

  1. Device X is very effective in preventing sexually transmitted diseases.
  2. Device X can be inserted in uterus by woman herself.
  3. Device X prevents menstrual cycle in women.
  4. Device X can cause heavy painful and longer duration periods or menstruation.

Verified Answer

  1. (b) Copper T.

Explanation:

Intrauterine device is placed inside the uterus by a doctor or a trained nurse. Copper T is a common intra-uterine device.

  1. (b) Copper.

 

iii. (c) It suppresses fertilising capacity of sperm.

  1. (a) Device X might have got expelled without the knowledge of woman.

Explanation:

Intra-uterine devices are highly effective in preventing unwanted pregnancies. But they come with one disadvantage, that is they can get expelled anytime without the knowledge of women. Couple continue active sexual life thinking that their birth control device is still in action.

 

  1. (d) Device X can cause heavy painful and longer duration periods or menstruation.

Explanation:

Intra-uterine devices do not protect against sexually transmitted diseases. Periods may become heavier, longer, and more painful and there are chances of pelvic infection.