Question

In: Biology

The solubility of a vitamin determines the way that the vitamin is ( a) absorbed (b)...

The solubility of a vitamin determines the way that the vitamin is ( a) absorbed (b) transported (c) stored (d) all of these

Fat soluble vitamins (a) need bile for absorption (b) are transported on lipoproteins (c) are stored in fat cells ( d) all of these ( e) none of these

Which of these are considered a conditionally essential nutrient (A) Vitamin D (B) Cholesterol (C) Retinoic Acid (D) Linolenic Acid

Which of these when used in excess can cause a malformation in the fetus during the first trimester

(A) Retinol (B) Ascorbic Acid (c) Thiamin (d) Folic Acid

Which of these can cause a malformation in the fetus if there is a deficiency in the first trimester

Thiamin (b) Pantothenic Acid (c) Folate (d) Beta carotene

Beta carotene is (A) An antioxidant (B) Pro vitamin A (C) an orange pigment in fruits and vegetables (D) A & B (E) all of these

Expert Solution

Question 1 : The solubility of a vitamin determines the way that the vitamin is

(a) absorbed (b) transported (c) stored (d) all of these

Answer: (a) absorbed

The solubility of the vitamin affect the way in which they are absorbed in the body. Fat-soluble and water-soluble vitamins are absorbed with a different mechanism.

Question 2 : Fat soluble vitamins

(a) need bile for absorption (b) are transported on lipoproteins (c) are stored in fat cells ( d) all of these ( e) none of these

Answer: ( d) all of these

There absorption require bile and transportation is done by lipoprotein. They are mainly stored in the liver and fat storage cell.

Question 3 : Which of these are considered a conditionally essential nutrient

(A) Vitamin D (B) Cholesterol (C) Retinoic Acid (D) Linolenic Acid

Answer (C) retinoic acid

Retinoic Acid or vitamin Ais obtained from external source only and is not synthesized in the body

Question 4: Which of these when used in excess can cause a malformation in the fetus during the first trimester

(A) Retinol (B) Ascorbic Acid (c) Thiamin (d) Folic Acid

Ans (A) Retinol

Intake of the excess of vitamin A leads to teratogenicity in first trimester of pregnancy.

Question 5: Which of these can cause a malformation in the fetus if there is a deficiency in the first trimester

(a) Thiamin (b) Pantothenic Acid (c) Folate (d) Beta carotene

Ans (C) folate

Vitamin i.e. Folate deficiency causes Neural-tube defects and congenital heart defects are typical congenital abnormalities

Question 6 Beta carotene is

(A) An antioxidant (B) Pro vitamin A (C) an orange pigment in fruits and vegetables (D) A & B (E) all of these

Ans E

Beta carotene is an antioxidant, Provitamin A and has re orange colour. It is oxidised in the body and is converted into retinol and retinoic acid.

gladiator answered 2 years ago

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