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 of the following metal ions activates many enzymes participating in the oxidation of glucose to produce ATP and with Na it is also responsible for the transmission of nerve signals:

1. Copper

2. Calcium

3. Potassium

4. Iron

Subtopic:  Vitamins, Hormones & Enzymes |
 68%
Level 2: 60%+
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 |
 81%
Level 1: 80%+
NEET - 2020
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Which alkaline earth metal (M) acts as a cofactor for enzymes that utilize ATP in phosphate transfer?
1. Sr 2. Be
3. Mg 4. Ca
Subtopic:  Vitamins, Hormones & Enzymes |
 80%
Level 1: 80%+
NEET - 2019
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