Prepare for NEET Biology Biomolecules with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert explanations of carbohydrates, proteins, and more.
Which lipid acts as a precursor for both prostaglandins and leukotrienes?
Linoleic acid
Palmitic acid
Arachidonic acid
Oleic acid
Tay-Sachs disease is caused by a deficiency in the enzyme hexosaminidase A. This leads to the accumulation of which lipid in the brain?
Cerebroside
Sphingomyelin
GM2 ganglioside
Phosphatidylcholine
Amylose, a component of starch, is composed of glucose monomers linked predominantly by which type of glycosidic bond?
ฮฑ-1,4-glycosidic bonds
ฮฒ-1,4-glycosidic bonds
ฮฑ-1,6-glycosidic bonds
ฮฒ-1,6-glycosidic bonds
Inulin, a storage polysaccharide found in some plants, is composed of fructose monomers linked primarily by which type of bond?
ฮฑ-1,4-glycosidic bonds
ฮฒ-2,1-glycosidic bonds
ฮฑ-1,6-glycosidic bonds
ฮฒ-1,4-glycosidic bonds
The phosphodiester bond linking nucleotides in DNA and RNA involves which carbons of the sugar moiety?
1' and 2'
2' and 3'
3' and 5'
4' and 5'
Chitin, a structural polysaccharide found in the exoskeleton of insects and crustaceans, is composed of which monomers linked by what type of glycosidic bond?
Glucose; ฮฑ-1,4-glycosidic bond
N-acetylglucosamine; ฮฒ-1,4-glycosidic bond
Fructose; ฮฒ-2,1-glycosidic bond
Galactose; ฮฑ-1,4-glycosidic bond
Which chromatographic technique is BEST suited for separating proteins based on their differences in net charge at a given pH?
Size exclusion chromatography
Affinity chromatography
Ion exchange chromatography
Hydrophobic interaction chromatography
During DNA replication, the lagging strand is synthesized discontinuously. Which enzyme is PRIMARILY responsible for joining these discontinuous fragments?
DNA Polymerase I
DNA Polymerase III
DNA Helicase
DNA Ligase
The catalytic efficiency of an enzyme is BEST represented by which of the following parameters?
Which of the following is NOT a lipid?
Cholesterol
Triglyceride
Glycogen
Phospholipid
