Biochemistry

A 56-year-old female patient presents with constipation, excessive thirst, frequent urination and feelings of depression. Blood tests reveal elevated blood calcium levels. Which of the following would cause elevated blood calcium levels?

Jul 25, 2025

Biochemistry, Question bank
The tricarboxylic (TCA, citric, Krebb’s) cycle is the ‘metabolic engine’ in cells. Which of the following are features of the TCA cycle?

Jul 25, 2025

Biochemistry, Question bank
A 63-year-old man is admitted to the hepatology ward after presenting with profound jaundice. He has been drinking heavily for the last 40 years, sometimes consuming 45 units a week. Which of the following blood results would you expect to be lowered in alcoholic liver disease?

Jul 25, 2025

Biochemistry, Question bank
Eukaryotic cells contain several internal structures. Which of the following organelles may contain DNA?

Jul 25, 2025

Biochemistry, Question bank
Which hormone secreted by the G cells of the stomach antrum acts to increase gastric acid secretion?

Jul 25, 2025

Biochemistry, Question bank
In the initial period of starvation the brain uses glucose derived from gluconeogenesis. However in a few days, adaptation occurs. When there is a lack of glucose from hepatic gluconeogenesis, what becomes the main fuel source for the brain?

Jul 25, 2025

Biochemistry, Question bank
The major enzyme responsible for protein digestion in the small bowel is:

Jul 25, 2025

Biochemistry, Question bank
Which of the following cell types is derived from a common lymphoid progenitor?

Jul 25, 2025

Biochemistry, Question bank
Sugars composed of two monosaccharides are called disaccharides. Which two monosaccharides form a glycosidic bond to form the disaccharide lactulose?

Jul 25, 2025

Biochemistry, Question bank
Through glycolysis, the Krebs cycle, and the redox reactions in the electron transport chain, how many molecules of adenosine triphosphate (ATP) are gained through the oxidation of one molecule of glucose?

Jul 25, 2025

Biochemistry, Question bank