The vitamin whose content increases following the conversion of milk into curd by lactic acid bacteria is:

(1) Vitamin C

(2) Vitamin D

(3) Vitamin B12

(4) Vitamin E

Subtopic:  Microbes in Household Products |
 98%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Match the following list of bacteria and their commercially important products:

 

Bacterium

 

Product

(i)

Aspergullus niger

(a)

Lactic acid

(ii)

Acetobacter aceti

(b)

Butyric acid

(iii)

Clostridium Butylicum   

(c)

Acetic acid

(iv)   

Lactobacillus

(d)   

Citric Acid

Choose the correct match:

(1) (i) - b, (ii) - c, (iii) - d, (iv) - a

(2) (i) - b, (ii) - d, (iii) - c, (iv) - a

(3) (i) - d, (ii) - c, (iii) - b, (iv) - a

(4) (i) - d, (ii) - a, (iii) - c, (iv) - b

Subtopic:  Microbes in Household Products |
 95%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The residue left after methane production from cattle dung is:

(1) burnt

(2) burried in land fills

(3) used as manure

(3) used in civil construction

Subtopic:  Microbes in Production of Biogas |
 93%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

BOD of waste water is estimated by measuring the amount of:

(1) total inorganic matter

(2) biodegradable organic matter

(3) oxygen evolution

(4) oxygen consumption.

Subtopic:  Microbes in Sewage Treatment |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The free-living fungus Trichoderma can be used for:

(1) killing insects

(2) biological control of plant diseases

(3) controlling butterfly caterpillars

(4) producing antibiotics

Subtopic:  Microbes in Biocontrol Agent |
 87%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The primary treatment of waste water involved the removal of:

(1) dissolved impurities

(2) stable substances

(3) toxic substances

(4) harmful bacteria.

Subtopic:  Microbes in Sewage Treatment |
 61%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Identify the incrrectly matched pair:

(1) Trichoderma harzianum -  Biocontrol

(2) Aspergillus niger  - source of citric acid

(3) Baculovirus - narrow spectrum species specific insecticides

(4) Monascus purpureus - source of cholesterol synthesizing enzyme

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 67%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Identify the incorrectly matched pair 

1.

Baculoviruses

 Species specific, broad spectrum insecticides

2.

Trichoderma

Free living fungi common in root ecosystems

3.

Ladybird

Biocontrol of aphids

4.

Organic farming

Pests kept at manageable levels rather than completely eradicated

Subtopic:  Microbes in Biocontrol Agent |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Identify the incorrect matched pair:

(1) Trichoderma harzianum: Cyclosporin A

(2) Monascus purpureus: Statins

(3) Aspergillus niger: Citric acid

(4) Streptococcus pyogenes: Clot buster

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
 75%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Baculoviruses are:

1. Species specific, narrow spectrum insecticides

2. Species specific, broad spectrum insecticides

3. Non specific, narrow spectrum inseticides

4. Non specific, broad spectrum insecticides

Subtopic:  Microbes in Biocontrol Agent |
 94%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch