NEET
Botany

Chemicals Enzymes Other Bioactive Molecules

Medium Priority
Consistency: 55%
Weightage: 11 / 20 Yrs

High-Yield Trend

1
2025
1
2024
1
2021
2
2020
1
2019
1
2017
1
2016
1
2015
1
2013
2
2012
1
2008

Questions
13 MCQs

01
PYQ 2008
easy
botany ID: neet-200
Modern detergents contain enzyme preparations of:

1. acidophiles

2. alkaliphiles

3. thermoacidophiles

4. thermophiles

1
(1)
2
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3
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4
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02
PYQ 2012
easy
botany ID: neet-201

Monascus purpureus is the yeast used commercially in the production of:

1. Ethanol
2. Streptokinase for removing clots from the blood vessels
3. Citric acid
4. Blood cholesterol-lowering statins

1
(1)
2
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3
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4
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03
PYQ 2012
easy
botany ID: neet-201

A patient brought to a hospital with myocardial infarction is normally immediately given:

1. penicillin 2. streptokinase
3. cyclosporin-A 4. statins
1
(1)
2
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3
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4
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04
PYQ 2013
easy
botany ID: neet-201

A good producer of citric acid is:

1. Pseudomonas

2. Clostridium

3. Saccharomyces

4. Aspergillus

1
(1)
2
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3
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05
PYQ 2015
easy
botany ID: neet-201

Match the following list of microbes and what they are used for:

A. Saccharomyces cerevisiae 1. Production of immunosuppressive agents
B. Monascus purpureus 2. Ripening of Swiss cheese
C. Trichoderma polysporum 3. Commercial production of ethanol
D. Propionibacterium shermanii 4. Production of blood-cholesterol-lowering agents


1. A-3, B-4, C-1, D-2

2. A-4, B-3, C-2, D-1

3. A-4, B-2, C-1, D-3

4. A-3, B-1, C-4, D-2

1
(1)
2
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3
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06
PYQ 2016
easy
botany ID: neet-201
Match Column-I with Column-II and select the correct option using the codes given below:
Column-I Column-II
A. Citric acid 1. Trichoderma
B. Cyclosporin 2. Clostridium
C. Statins 3. Aspergillus
D. Butyric Acid 4. Monascus


1. A-3, B-1, C-2, D-4

2. A-3, B-1, C-4, D-2

3. A-1, B-4, C-2, D-3

4. A-3, B-4, C-1, D-2

1
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2
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3
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07
PYQ 2017
easy
botany ID: neet-201

Which of the following is correctly matched for the product produced by them?

1. Methanobacterium: Lactic acid

2. Penicillium notatum: Acetic acid

3. Saccharomyces cerevisiae: Ethanol

4. Acetobacter aceti: Antibiotics

1
(1)
2
(2)
3
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4
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08
PYQ 2019
easy
botany ID: neet-201

Which of the following is a commercial blood cholesterol-lowering agent?

1. Lipase 2. Cyclosporin A
3. Statin 4. Streptokinase
1
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2
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09
PYQ 2020
easy
botany ID: neet-202

For the commercial and industrial production of Citric Acid, which of the following microbes is used?

1. Aspergillus niger

2. Lactobacillus sp

3. Saccharomyces cerevisiae

4. Clostridium bretylium

1
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10
PYQ 2020
easy
botany ID: neet-202

Cyclosporin A, used as an immuno-suppression agent, is produced from:

1. Monascus purpureus 2. Saccharomyces cerevisiae
3. Penicillium notatum 4. Trichoderma polysporum
1
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2
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11
PYQ 2021
easy
botany ID: neet-202

Match List-I with List-II

List-I List-II
(a) Aspergillus Niger (i) Acetic Acid
(b) Acetobacter aceti (ii) Lactic Acid
(c) Clostridium bretylium (iii) Citric Acid
(d) Lactobacillus (iv) Butyric Acid


Choose the correct answer from the options given below:

(a) (b) (c) (d)
1. (ii) (iii) (i) (iv)
2. (iv) (ii) (i) (iii)
3. (iii) (i) (iv) (ii)
4. (i) (ii) (iii) (iv)
1
(1)
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12
PYQ 2024
easy
botany ID: neet-202
Match List I with List II
List I List II
A. Clostridium butylicum I. Ethanol
B. Saccharomyces cerevisiae II. Streptokinase
C. Trichoderma Polysporum III. Butyric acid
D. Streptococcus sp. IV. Cyclosporin-A

Choose the correct answer from the options given below:
1. A-II, B-IV, C-III, D-I
2. A-III, B-I, C-IV, D-II
3. A-IV, B-I, C-III, D-II
4. A-III, B-I, C-II, D-IV
1
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4
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13
PYQ 2025
easy
botany ID: neet-202
Streptokinase produced by bacterium Streptococcus is used for
1. Liver disease treatment
2. Removing clots from blood vessels
3. Curd production
4. Ethanol production
1
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