A well known naturally occuring organometallic compound is

1. vit B12 coenzyme

2. chlorophyll

3. cytochrome P-450

4. myoglobin

Subtopic:  Vitamins, Hormones & Enzymes |
 51%
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NEET 2023 - Target Batch - Aryan Raj Singh
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VO43- or PO43- which inhibits the operation of enzyme ATPase?

1. Both

2. Only PO43-

3. Only VO43-

4. None of these

Subtopic:  Vitamins, Hormones & Enzymes |
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NEET 2023 - Target Batch - Aryan Raj Singh
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The inside of a cell is a

1. reducing medium

2. oxidising medium

3. neutral medium

4. None of these

Subtopic:  Polysaccharides & their Importance |  DNA, RNA & Metal Ions |
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NEET 2023 - Target Batch - Aryan Raj Singh
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O2 binding in Hb is

1. pH dependent

2. pH independent

3. O2 binds at neutral pH

4. None of these

Subtopic:   DNA, RNA & Metal Ions |
 76%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Release of O2 from oxyhaemoglobin is favoured by

1. high pH and low CO2 conc

2. low pH and low CO2 conc

3. high pH and high CO2 conc

4. low pH and high conc. of CO2 

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
 56%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Nitrogenase enzyme contains

1. Fe-S protein

2. Mo-Fe-S protein

3. Both 1 and 2

4. None of the above

Subtopic:   DNA, RNA & Metal Ions |
 58%
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NEET 2023 - Target Batch - Aryan Raj Singh
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The biological role of Cytochrome P-450 is

1. Nitrogen fixation

2. Oxidation of RH to ROH

3. Amide hydrolysis

4. Oxidation of amino acid.

Subtopic:   DNA, RNA & Metal Ions |
 53%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Myoglobin is a

1. Catalyst for epoxidation reaction

2. Component in a photosynthetic system

3. Nitrogen fixation enzyme

4. Di-oxygen binding metalloprotein

Subtopic:  Vitamins, Hormones & Enzymes |
 65%
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The metal that is not prevalent in the biological system is

1. Platinum

2. Manganese

3. Cobalt

4. Nickel

Subtopic:  Vitamins, Hormones & Enzymes |
 73%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Hemerythrin belongs to the group of

1. Non-heme iron protein

2. Binuclear copper protein

3. Heme-iron protein

4. None of these. 

Subtopic:  α - Amino Acids, Peptide Bond, Proteins & Structure |
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NEET 2023 - Target Batch - Aryan Raj Singh
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