We use the term tetrahydrofolate to designate a family of related compounds. What is the main difference between members of this family?

TLS Online TPP Program

#Question id: 200

#Unit 1. Structure and Function of Biomolecules

When NAD+ is reduced, the UV absorbance at 340 nm

TLS Online TPP Program

#Question id: 201

#Unit 1. Structure and Function of Biomolecules

The product(s) of lactate dehydrogenase under anaerobic conditions is (are)

A) pyruvic acid.

B) NAD+.

C) NADH.

TLS Online TPP Program

#Question id: 202

#Unit 1. Structure and Function of Biomolecules

Unlike NADH and NADPH, Which of the following is correct for FAD and FADH

A) donate one electron at a time.

B) donate one or two electrons at a time.

C) do not become positively charged.

TLS Online TPP Program

#Question id: 203

#Unit 1. Structure and Function of Biomolecules

Which of the following two-electron transfer reactions can be linked to one-electron transfer reactions by

A) formation of semiquinones.

B) a [Fe-S] cluster.

C) NADH and NADPH.

TLS Online TPP Program

#Question id: 204

#Unit 1. Structure and Function of Biomolecules

Acyl-group-transfer reactions often involve which coenzyme?

TLS Online TPP Program

#Question id: 205

#Unit 1. Structure and Function of Biomolecules

Which coenzyme is composed of a 2-mercaptoethylamine unit, the vitamin pantothenate and an ADP moiety?