Download App

Human Health and Disease — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYHuman Health and Disease2 Marks
Question
What is active immunity?
✓

Answer

Active immunity:
→It is the immunity in which antibodies are produced in a host body when the host is exposed to antigens (e.g. living or dead microbes or other proteins). It is a slow process. It is produced in two ways:
(a) Natural Active Immunity :
→It is developed during natural infection by microbes.
(b) Artificial Active Immunity :
→It is developed by injecting the microbes deliberately during immunization.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1.5 Marks Questions" from Human Health and Disease→Human Health and Disease — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

What are methanogens? How do they help to generate biogas?
→
Give a main difference between Down's Syndrome and Turner's Syndrome.
→
List the criteria for the molecule that can act as a genetic material. ###What criteria should be fulfilled, is a molecule can act as a genetic material
→
Can we call human evolution as adaptive radiation ?
→
Who are called pollen robbers?
→
Explain the adaptive immunity with emphasis on its properties, activation and its role in vaccination.
→
Explain how do the following act as contraceptives:
  1. CuT
  2. ‘Saheli’
→
Amniocentesis for sex determination is banned in our country. Is this ban necessary? Comment.
→
Write the scientific name of the fruit–fly. Why did Morgan prefer to work with fruit–flies for his experiments? State any three reasons.
→
With the help of an example, differentiate between incomplete dominance and co-dominance.
→