Tamil Nadu (English Medium) Plus 2 Biology Science Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
Biotechnology is associated with

(A) industrial use of micro-organisms	(B) industrial exploitation of biological system
(C) cloning genes from two separated genotypes	(D) all of these

Question-2
A major component of gobar gas is

(A) butane	(B) ammonia
(C) methane	(D) ethane

Question-3
Which of the following organic acid is the main source of vinegar?

(A) citric acid	(B) nitric acid
(C) lactic acid	(D) acetic acid

Question-4
A bioreactor refers to

(A) fermentation tank	(B) organisms reacting to a stimulus
(C) tank for biochemical reactions	(D) nuclear reactor for biological studies

Question-5
The interferons are

(A) antiviral proteins	(B) antibiotic proteins
(C) antigen proteins	(D) antibacterial particle

Question-6
Which of the following micro-organism is used for the production of citric acid in industries?

(A) A.niger	(B) P.citrinum
(C) R.nigricans	(D) L.bulgaris

Question-7
Lactic acid is prepared in the presence of

(A) A. nigar	(B) P.bulgaricus
(C) F.moniliforme	(D) G.fujikorei

Question-8
A cell coded protein formed in response to infection with most animal viruses is

(A) histone	(B) anitigen
(C) antibody	(D) interferon

Question-9
Utilisation of biological knowledge for the production of materials useful to society is called

(A) Biotechnology	(B) Bio-engineering
(C) Applied biology	(D) Molecular biology

Question-10
Biotechnology utilises new organisms developed from the present organisms utilizing

(A) Wood seasoning	(B) environmental engineering
(C) recombinant DNA technology	(D) both '2' and '3'

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Plus 2 Biology Science

Tamil Nadu (English Medium)

Practice in Related Chapters
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Biotechnology