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Q. No.Cheilosis occurs due to a deficiency of:
1.
Thiamine
2.
Nicotinamide
3.
Pyridoxamine
4.
Riboflavin
Subtopic: Vitamins, Hormones & Enzymes |
67%
From NCERT
NEET - 2023
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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 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 |
From NCERT
NEET - 2023
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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 |
66%
From NCERT
NEET - 2022
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Subtopic: Carbohydrates - Classification & D-L configuration |
67%
From NCERT
NEET - 2022
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The reagents with which glucose does not reason to give the corresponding test/products are:
A. Tollen's reagent
B. Schiff's reagent
C. \(\text{HCN}\)
D. \(\text{NH}_2\text{OH}\)
E. \(\text{NaHSO}_3\)
Choose the correct options from the given below:-
1. \(\text{A}\) and \(\text{D}\)
2. \(\text{B}\) and \(\text{E}\)
3. \(\text{E}\) and \(\text{D}\)
4. \(\text{B}\) and \(\text{C}\)
A. Tollen's reagent
B. Schiff's reagent
C. \(\text{HCN}\)
D. \(\text{NH}_2\text{OH}\)
E. \(\text{NaHSO}_3\)
Choose the correct options from the given below:-
1. \(\text{A}\) and \(\text{D}\)
2. \(\text{B}\) and \(\text{E}\)
3. \(\text{E}\) and \(\text{D}\)
4. \(\text{B}\) and \(\text{C}\)
Subtopic: Carbohydrates - Classification & D-L configuration |
69%
From NCERT
NEET - 2024
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Match List-II with List-II :
Choose the correct answer from the options given below:
1. A-I, B-II, C-III, D-IV
2. A-VI, B-III, C-II, D-I
3. A-I, B-IV, C-II, D-III
4. A-IV, B-I, C-II, D-III
| List-I (Vitamins) | List-II (Deficiency/other name/ property) | ||
| A. | Vitamin K | I. | RBC deficient in haemoglobin |
| B. | Vitamin \(\text{B}_{12}\) | II. | Bleeding gums |
| C. | Vitamin C | III. | Thiamine |
| D. | Vitamin \(\text{B}_1\) | IV. | Fat soluble |
1. A-I, B-II, C-III, D-IV
2. A-VI, B-III, C-II, D-I
3. A-I, B-IV, C-II, D-III
4. A-IV, B-I, C-II, D-III
Subtopic: Vitamins, Hormones & Enzymes |
64%
From NCERT
NEET - 2024
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The RBC deficiency is a deficiency disease of:
| 1. | Vitamin B1 | 2. | Vitamin B2 |
| 3. | Vitamin B12 | 4. | Vitamin B6 |
Subtopic: Vitamins, Hormones & Enzymes |
85%
From NCERT
NEET - 2021
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Which of the following statement is not true about glucose?
1. It is an aldohexose.
2. It contains five hydroxyl groups.
3. It is a reducing sugar.
4. It is an aldopentose.
Subtopic: Carbohydrates - Classification & D-L configuration |
79%
From NCERT
NEET - 2020
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Deficiency of which vitamin causes osteomalacia ?
| 1. | Vitamin A | 2. | Vitamin D |
| 3. | Vitamin K | 4. | Vitamin E |
Subtopic: Vitamins, Hormones & Enzymes |
79%
From NCERT
NEET - 2020
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The reaction of concentrated sulphuric acid with carbohydrates (C12H22O11) is an example of:
| 1. | Dehydration | 2. | Oxidation |
| 3. | Reduction | 4. | Sulphonation |
Subtopic: Polysaccharides & their Importance |
62%
From NCERT
NEET - 2020
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