ATI RN
Exam Questions on Cells Tissues and Organs Questions
Question 1 of 5
A radioactive isotope which is intentionally put into a human body for the purpose of watching it within the person and then follow metabolic functions is called a(n)
Correct Answer: C
Rationale: Radioactive tracers (e.g., iodine-131) track metabolic processes in medical imaging.
Question 2 of 5
Identify the 4 classes of macromolecules important to life.
Correct Answer: C
Rationale: The four macromolecules are carbohydrates, lipids, nucleic acids, and proteins.
Question 3 of 5
Fats are generally at room temperature, while oils are generally at room temperature.
Correct Answer: B
Rationale: Fats (saturated) are solid, oils (unsaturated) are liquid at room temperature.
Question 4 of 5
The destruction of a protein's shape caused by heat or pH changes is called
Correct Answer: A
Rationale: Denaturation disrupts a protein's shape, impairing function.
Question 5 of 5
The breakdown of one molecule of glucose will generate ATP molecules for cell use.
Correct Answer: C
Rationale: Aerobic respiration of glucose typically yields ~36 ATP via glycolysis, Krebs cycle, and oxidative phosphorylation.