The vitamin that is essential for the proper development of the fetal nervous system is:
A. Vitamin D
B. Vitamin B₁₂
C. Vitamin K
D. Folic acid
Answer: Option D
Solution (By JKExamLibrary)
Folic acid prevents neural tube defects like spina bifida. It is recommended during early pregnancy. B₁₂ is for DNA synthesis, D for bone, K for clotting.
Explanation:
Solanum tuberosum is the scientific name of potato, a member of the Solanaceae family. Solanum melongena is brinjal (eggplant), Capsicum annuum is chili, and Lycopersicon esculentum is tomato. Potato is a tuber (modified stem) rich in starch, and is one of the world's major food crops.
Explanation:
Antidiuretic Hormone (ADH), also known as vasopressin, is released by the posterior pituitary in response to osmotic pressure or fluid loss. It acts primarily on the collecting ducts of the nephrons to increase water reabsorption by making them more permeable to water. This prevents diuresis (excessive urine production) and helps conserve body water.
Explanation:
Folic acid (vitamin B₉) is reduced to tetrahydrofolate (THF), which carries one-carbon groups in amino acid and nucleotide metabolism. Biotin is for carboxylation, riboflavin for redox, thiamine for decarboxylation.
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