Basic Biochemistry

Question 1

What is the name of the anabolic pathway involved in glucose metabolism?

Answer 1

Gluconeogenesis

Question 2

What are the two amino acids that are negatively charged at a neutral pH?

Answer 2

Aspartate and glutamate

Question 3

Which pathway provides the precursor molecules for nucleotide synthesis?

Answer 3

Pentose phosphate pathway

Question 4

Name the 3 compounds that provide a useful storage form of glucose

Answer 4

Glycogen, starch, and sucrose

Question 5

Name the bond that joins together different nucleotides in RNA or DNA?

Answer 5

Phosphodiester bond

Question 6

If a reaction has a negative Gibbs’ Free Energy, will its equilibrium constant (K) be greater or lower than 1?

Answer 6

Greater than 1

Question 7

Name the three common disaccharides of glucose

Answer 7

Lactose, maltose, and sucrose

Question 8

What is a D-isomer?

Answer 8

A stereoisomer which rotates polarised light in a clockwise direction

Question 9

What is an L-isomer

Answer 9

A stereoisomer which rotates polarised light in an anticlockwise direction

Question 10

Are most naturally occurring monosaccharides D- or L-isomers?

Answer 10

D-isomers

Question 11

What form do saccharides with 5 or more carbons take?

Answer 11

Cyclic

Question 12

How do monosaccharides become polysaccharides?

Answer 12

Condensation reaction

Question 13

Is glycolysis an anabolic or catabolic pathway?

Answer 13

Catabolic

Question 14

Name the two types of bases found in nucleic acids

Answer 14

Pyrimidines and purines

Question 15

Name the 3 aromatic amino acid

Answer 15

Tryptophan, tyrosine, phenylalanine