1. The approximate number of nucleotides found in tRNA are

(a) 75
(b) 60
(c) 118
(d) 50
(e) 85***???

1. Pyridoxal phosphate is a coenzyme derived from

(a) Vit B2
(b) Vit B1
(c) Vit B6 *
(d) Vit B12
(e) Vit B3

2. Amino acids in solution at neutral pH are predominantly

(a) Un-ionized
(b) Zwitterions *
(c) Negatively charged only
(d) Postively charged only
(e) Non-polar

3. Which of the following lipids has a sugar residue?

(a) Sulfolipids*
(b) Phospholipids
(c) Triglycerides
(d) Lipoproteins
(e) Sphingolipids

Glycolipids(contain sugars):> Sulfolipid, ganglioside, cerebroside, proteolipid.

4. Which of the following is not a phospholipid?

(a) Phosphatidylserine
(b) Cerebroside *
(c) Lecithin
(d) Cephalin
(e) Phosphatidylglycerol

5. Sphingolipids are important for all of the following except:

(a) components of cell membranes
(b) components of myelin cells
(c) spinal cord membranes
(d) Components of nerve cell membranes
(e) Sources of acetylCoA*???

6. Which of the following is a steroid hormone?

(a) Glucagon – protein
(b) PTH – protein
(c) Thyroxine
(d) Epinephrine
(e) Cortisol *

7. Which of the following is a protein hormone?

(a) Estrogen
(b) Deoxycorticosterone
(c) DHEA
(d) Dopamine *
(e) Testosterone

8. Thiamine is a water soluble vitamin commonly referred to as

(a) Vitamin B3
(b) Vitamin B1 *
(c) Vitamin B5
(d) Vitamin B2
(e) Vitamin B6

9. Which of the following hormones is not formed from cholesterol?

(a) Aldosterone
(b) Cortisol
(c) Progesterone
(d) Thyroxine *
(e) Estrogen

10. Which of the following is a lipid-soluble vitamin?

(a) Niacin
(b) Biotin
(c) Retinol *
(d) Folic acid
(e) Pantothenic acid

 

 

 

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