Class 12 Biology · Chapter 9 · Test 3
Antibodies and Immune Disorders
36 MCQs
35 questions · 30 min · 35 marks
Want to try first? Take the free Biology test: Homeostasis and Feedback Mechanisms
Sample questions
The first 5 of 35. Try each one, then tap to see the answer.
Question 1
What types of drug are not prescribed to a recipient of organ transplantation?
- ADrugs that suppress immunity
- BDrugs that strengthen immunity
- CAnti-inflammatory drugs
- DAnti-histamine drugs
Show answerHide answer
Answer: B
Immunity must be suppressed to prevent rejection so drugs that strengthen it are avoided.
Question 2
An antibody is a ___ shaped protein.
- AY
- BT
- CO
- DL
Show answerHide answer
Answer: A
It has two arms that bind antigens.
Question 3
An antibody is composed of how many polypeptide chains?
- ATwo
- BThree
- CFour
- DSix
Show answerHide answer
Answer: C
It has two identical heavy chains and two light chains.
Question 4
The chains of an antibody are held together by:
- ADisulfide bridges
- BPeptide bonds only
- CGlycosidic bonds
- DIonic bonds only
Show answerHide answer
Answer: A
Disulfide bridges link the four chains.
Question 5
The region of an antibody that differs among antibodies is the:
- AVariable region
- BConstant region
- CHinge
- DHeavy chain only
Show answerHide answer
Answer: A
Different variable regions make antibodies specific.
More tests in Immunity
Practise with a free account
Save your scores, see which chapters need work, and keep a notebook of every question you got wrong.