Some proteins contain additional amino acids that arise by modification of an amino acid already present in a peptide, examples include

TLS Online TPP Program

#Question id: 24217

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct statement of the following

a. In general, high acetyl-CoA or citrate are present, or when a high proportion of the cell’s adenylate is in the form of ATP, gluconeogenesis is favored.

b. When the level of AMP increases, it promotes glycolysis by stimulating PFK-1 by inhibiting FBPase-1

c. Phosphorylation of fructose 6-phosphate, catalysed by phosphofructokinase-2 (PFK-2)

d. Glucagon increases the cellular level of fructose 2,6 bisphosphate, stimulating glycolysis and inhibiting gluconeogenesis.

TLS Online TPP Program

#Question id: 21247

#Unit 7. System Physiology – Animal

A 25-year-old medical student spent a summer volunteering in the sub-Saharan region of Africa. There he noted a high incidence of people reporting difficulty with night vision due to a lack of vitamin A in their diet. Vitamin A is a precursor for the synthesis of

TLS Online TPP Program

#Question id: 1540

#Unit 4. Cell Communication and Cell Signaling

Peptidoglycans  recognize by

TLS Online TPP Program

#Question id: 15663

#Unit 8. Inheritance Biology

A mouse heterozygous at the Igf-2 locus is dwarf and has 50% dwarf progeny when mated to a homozygous Igf-2m animal. Which statement about this animal is FALSE?

TLS Online TPP Program

#Question id: 388

#Unit 1. Molecules and their Interaction Relevant to Biology

Calculate the pH of a solution prepared by mixing 2.0 mL of a strong acid solution of pH=3.0 and 3.0 mL of a strong base of pH=10.0.