ATI RN
Chapter 2 Cells and Tissues Review Questions Questions
Question 1 of 5
Over90\%$ of the human body is comprised of the elements:
Correct Answer: B
Rationale: C, H, O, and N constitute over 96% of body mass, primarily in water, proteins, and carbohydrates.
Question 2 of 5
Water will cling to other surfaces due to hydrogen bonds. This property is referred to as:
Correct Answer: A
Rationale: Adhesion is water's ability to stick to other surfaces via hydrogen bonds.
Question 3 of 5
Acidosis is a condition where blood pH is:
Correct Answer: D
Rationale: Acidosis occurs when blood pH drops below the normal range (<7.35).
Question 4 of 5
The polysaccharide that cannot be digested by humans, but may help prevent colon cancer is:
Correct Answer: A
Rationale: Cellulose (fiber) is indigestible but promotes gut health, potentially reducing cancer risk.
Question 5 of 5
Two or more polypeptide chains that are associated give the protein its structure.
Correct Answer: C
Rationale: Quaternary structure involves multiple polypeptide subunits.