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Sting of a bee causes pain, redness and swelling. Melittin is a major peptide in bee venom. Melittin is a membrane binding peptide that is involved in activating phospholipases in […]

Major regulatory step in cholesterol biosynthesis is (1) HMG coA reductase (2) HMG CoA synthase (3) Thiokinase (4) Mevalonate kinase Cholesterol is an essential lipid molecule involved in maintaining cell […]

Number of cycles required to completely hydrolyze Arachidonic acid into acetyl CoA is (1) 9 (2) 8  (3) 10 (4) 11 Arachidonic acid is a polyunsaturated fatty acid with 20 […]

Common metabolites in nucleotide biosynthesis derived from pentose phosphate pathway is (1) PRPP (2) Glycerladehyde-3-P (3) DHAP (4) Sedoheptulose 7-P The pentose phosphate pathway (PPP) is a crucial metabolic route […]

In eukaryotes there is single multifunctional fatty acyl synthase complex sufficient for complete fatty acid synthesis where as in prokaryotes there seven different enzymes involved for the same task. The […]

Some metabolic aspects of the Red Blood Cell (RBC) are proposed in the following statements: A. Synthesis of fatty acids does not occur in the RBC B. The pentose phosphate […]

Which is true for β-oxidation of fatty acids (1) Formation of Malonyl CoA is committed and regulatory step (2) Formation of acetoacetyl ACP occurs in mitochondria (3) Cytosolic acyl CoA […]

Which of the following ii NOT true for cholesterol metabolism? (1) HMG-CoA reductase is the key regulator of cholesterol biosynthesis. (2) Biosynthesis takes place in the cytoplasm. (3) Reduction reactions […]

Excess oxygen consumed after a vigorous exercise is (1) to pump out lactic acid from muscle (2) to increase the concentration of lactic acid in muscle (3) to reduce dissolved […]

The organelle responsible for conversion of glucose from fatty acids in plants is (1) Lysosome (2) Plastids (3) Glyoxisomes    (4) Peroxisomes In plants, the ability to convert fatty acids into […]