1.
WHICH VITAMIN IS A COENZYME REQUIRED FOR OXIDATION OF CARBOHYDRATES AND RIBOSE SYNTHESIS?
Correct Answer
B. THIAMINE (B1)
Explanation
Thiamine (B1) is a vitamin that acts as a coenzyme in various metabolic reactions, including the oxidation of carbohydrates and the synthesis of ribose. As a coenzyme, thiamine helps enzymes carry out these reactions efficiently. Without thiamine, the body would not be able to properly break down carbohydrates for energy or synthesize ribose, which is an essential component of nucleotides and nucleic acids. Therefore, thiamine is required for the oxidation of carbohydrates and ribose synthesis.
2.
WHICH ONE OF THESE VITAMINS WOULD BE NECESSARY TO MAINTAIN THE SKIN WITHOUT ANY WRINKLE PRODUCTION?
Correct Answer
D. VITAMIN C
Explanation
Vitamin C is necessary to maintain the skin without any wrinkle production because it is an antioxidant that helps to protect the skin from damage caused by free radicals. Free radicals can contribute to the breakdown of collagen, a protein that keeps the skin firm and elastic. Vitamin C also plays a crucial role in the production of collagen, helping to maintain the strength and structure of the skin. Therefore, ensuring an adequate intake of vitamin C can help prevent the formation of wrinkles and promote healthier, younger-looking skin.
3.
WHAT VITAMIN IS REQUIRED FOR SYNTHESIS OF PROTHROMBIN (BLOOD CLOTTING)?
Correct Answer
C. VITAMIN K
Explanation
Vitamin K is required for the synthesis of prothrombin, which is a protein involved in blood clotting. Without sufficient levels of vitamin K, the body would not be able to produce enough prothrombin, leading to impaired blood clotting and an increased risk of bleeding. Therefore, vitamin K is essential for maintaining proper blood clotting function.
4.
WHICH COENZYME VITAMIN IS REQUIRED FOR METABOLISM OF AMINO ACIDS, FATTY ACIDS AND FOR NUCLEIC ACID SYNTHESIS?
Correct Answer
E. BIOTIN
Explanation
Biotin is a coenzyme vitamin that is required for the metabolism of amino acids, fatty acids, and for nucleic acid synthesis. It plays a crucial role in several metabolic processes, including the breakdown of amino acids and fatty acids for energy production. Biotin also acts as a coenzyme for enzymes involved in nucleic acid synthesis, which is essential for the production of DNA and RNA. Therefore, biotin is necessary for the proper functioning of these metabolic pathways and the synthesis of important biomolecules.
5.
THIS VITAMIN IS DEFINED AS A ANTIOXIDANT NECESSARY FOR SYNTHESIS OF VISUAL PIGMENTS AS WELL AS THE DEVELOPMENT OF BONES AND TEETH?
Correct Answer
D. VITAMIN A
Explanation
Vitamin A is the correct answer because it is known as an antioxidant and is necessary for the synthesis of visual pigments, which are essential for vision. Additionally, it plays a crucial role in the development of bones and teeth. Vitamin D is also important for bone health, but it is not specifically mentioned in the question. Biotin, thiamine, and vitamin E do not have the same functions as described in the question.
6.
VITAMIN D
Correct Answer
A. ABSORBS CALCIUM AND pHOSpHORUS AND HELPS DEVELOP TEETH AND BONES
Explanation
Vitamin D is essential for the absorption of calcium and phosphorus in the body. It plays a crucial role in the development and maintenance of teeth and bones. Without sufficient levels of vitamin D, the body cannot effectively absorb calcium and phosphorus from the diet, leading to weakened bones and teeth. Therefore, it is important to have an adequate intake of vitamin D to support healthy bone development and maintenance.
7.
WHICH VITAMIN IS IS PART OF COENZYMES NAD AND NADP AND IS REQUIRED FOR OXIDATION OD GLUCOSE SYNTHESIS OF PROTEINS, FATS, AND NUCLEIC ACIDS?
Correct Answer
E. NIACIN
Explanation
Niacin, also known as vitamin B3, is the correct answer. Niacin is a vital nutrient that is part of coenzymes NAD (Nicotinamide adenine dinucleotide) and NADP (Nicotinamide adenine dinucleotide phosphate). These coenzymes play a crucial role in various metabolic processes, including the oxidation of glucose and the synthesis of proteins, fats, and nucleic acids. Niacin is essential for energy production and maintaining the overall health of cells and tissues in the body.