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Q. No.The incorrect statement about the denaturation of proteins is:
1.
It results due to change of temperature and pH.
2.
It results in the loss of biological activity of proteins.
3.
A protein is formed from amino acids linked by peptide bonds.
4.
Uncoiling of the helical structure takes place.
Subtopic: Denaturation of Proteins & Chemical Properties |
68%
Level 2: 60%+
NEET - 2022
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Subtopic: Carbohydrates - Classification & D-L configuration |
70%
Level 2: 60%+
NEET - 2022
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Given below are two statements:
In the light of the above statements choose the correct answer from the options given below:
| Statement I: | A unit formed by the attachment of a base to 1' position of sugar is known as a nucleoside. |
| Statement II: | When nucleoside is linked to a phosphorous acid at 5' position of sugar moiety, we get nucleotide. |
| 1. | Statement I is false but Statement II is true. |
| 2. | Both Statement I and Statement II are true. |
| 3. | Both Statement I and Statement II are false. |
| 4. | Statement I is true but Statement II is false. |
Subtopic: DNA, RNA & Metal Ions |
Level 4: Below 35%
NEET - 2023
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Cheilosis occurs due to the deficiency of:
| 1. | Thiamine | 2. | Nicotinamide |
| 3. | Pyridoxamine | 4. | Riboflavin |
Subtopic: Vitamins, Hormones & Enzymes |
70%
Level 2: 60%+
NEET - 2023
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A deficiency in which of the following vitamins leads to a decrease in red blood cell (RBC) production?
| 1. | Vitamin B1 | 2. | Vitamin B2 |
| 3. | Vitamin B12 | 4. | Vitamin B6 |
Subtopic: Vitamins, Hormones & Enzymes |
87%
Level 1: 80%+
NEET - 2021
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Which is the correct statement among the following?
| 1. | Starch is a polymer of α-glucose |
| 2. | Amylose is a component of cellulose |
| 3. | Proteins are composed of only one type of amino acid |
| 4. | In the cyclic structure of fructose, there are four carbons and one oxygen atom |
Subtopic: Polysaccharides & their Importance |
64%
Level 2: 60%+
AIPMT - 2001
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A compound that gives a positive Fehling solution test is:
| 1. | Sucrose | 2. | Glucose |
| 3. | Fats | 4. | Protein |
Subtopic: Polysaccharides & their Importance |
87%
Level 1: 80%+
AIPMT - 2001
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Among the following, reducing sugar is:
1. Galactose
2. Gluconic acid
3. β-methyl galactoside
4. Sucrose
Subtopic: Polysaccharides & their Importance |
72%
Level 2: 60%+
AIPMT - 2002
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Which of the following is not a correct statement?
| 1. | α-carbon of α-amino acid is asymmetric except for glycine. |
| 2. | Some proteins of human body are found in L-form. |
| 3. | The human body can synthesize all proteins it needs. |
| 4. | At pH = 7, both amino and carboxylic groups exist in ionized form. |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
Level 4: Below 35%
AIPMT - 2002
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Enzymes are made up of:
1. Edible proteins.
2. Proteins with specific structures.
3. Nitrogen-containing carbohydrates.
4. Carbohydrates.
Subtopic: Vitamins, Hormones & Enzymes |
92%
Level 1: 80%+
AIPMT - 2002
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