Which one of the following pairs is not correctly matched:
- Vitamin C–Scurvy
Vitamin B2–Pellagra
Vitamin B12–Pernicious anaemia
Vitamin B6–Beri-beri
The Correct Option is D
Solution and Explanation
Beri-Beri is caused by a deficiency of vitamin B1 (thiamine), not vitamin B6 (pyridoxine).
So, the correct option is (D): Vitamin B6–Beri-beri
Top Questions on Biomolecules
In the given pentapeptide, find out an essential amino acid (\(Y\)) and the sequence present in the pentapeptide.
Choose the correct answer from the options given below:- JEE Main - 2026
- Chemistry
- Biomolecules
Given below are two statements for the following reaction sequence:
- JEE Main - 2026
- Chemistry
- Biomolecules
- The correct trend in the first ionization enthalpies of the elements in the 3rd period of periodic table is :
- JEE Main - 2026
- Chemistry
- Biomolecules
Match List-I with List-II.
- JEE Main - 2026
- Chemistry
- Biomolecules
- The correct statements are :
A. Activation energy for enzyme catalysed hydrolysis of sucrose is lower than that of acid catalysed hydrolysis.
B. During denaturation, secondary and tertiary structures of a protein are destroyed but primary structure remains intact.
C. Nucleotides are joined together by glycosidic linkage between \( C_1 \) and \( C_4 \) carbons of the pentose sugar.
D. Quaternary structure of proteins represents overall folding of the polypeptide chain.
Choose the correct answer from the options given below :- JEE Main - 2026
- Chemistry
- Biomolecules
Questions Asked in NEET exam
- Two cities X and Y are connected by a regular bus service with a bus leaving in either direction every T min. A girl is driving scooty with a speed of 60 km/h in the direction X to Y. She notices that a bus goes past her every 30 minutes in the direction of her motion, and every 10 minutes in the opposite direction. Choose the correct option for the period T of the bus service and the speed (assumed constant) of the buses.
- NEET (UG) - 2025
- Relative Velocity
- A physical quantity P is related to four observations a, b, c, and d as follows: P = a3 b2 (c / √d) The percentage errors of measurement in a, b, c, and d are 1%, 3%, 2%, and 4% respectively. The percentage error in the quantity P is:
- NEET (UG) - 2025
- Dimensional analysis and its applications
What is Microalbuminuria ?
- NEET (UG) - 2025
- Human physiology
The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.
- NEET (UG) - 2025
- Logic gates
- An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \(R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}\), and molecular mass of \(O_2 = 32 \text{ g/mol}\), 1 atm pressure = \(1.01 \times 10^5 \text{ N/m}^2\)]
- NEET (UG) - 2025
- Ideal-gas equation and absolute temperature
Concepts Used:
Vitamins
Vitamins are natural and essential nutrients. In the growth and development of the human body it plays an important role. For proper growth, strong bones and good development needs the right quantity of vitamins in our body. These vitamins are organic substances that work in groups for the normal and smooth functioning of our body cells.
Types of Vitamins:
There are two main types of vitamins.
Fat-Soluble Vitamins-
Fat-soluble vitamins are stored in the fat cells. These vitamins require fat in order to be absorbed. Vitamin A, D, E and K are fat-soluble vitamins.
Water-Soluble Vitamins-
Water-soluble vitamins are not stored in our body because its excess gets excrete through the urine. Therefore, these vitamins need to be replenished constantly. Vitamin B and C are water-soluble vitamins.