ATI RN
Cells and Tissues Multiple Choice Questions Questions
Question 1 of 5
What is the name of the mechanism that ensures that there is a higher concentration of sodium ions in the extracellular fluid than in the intracellular fluid?
Correct Answer: B
Rationale: The "pump" exchanges Na for K and uses energy from ATP to function.
Question 2 of 5
In which phase of mitosis would chromosomes line up at the centre of the spindle:
Correct Answer: D
Rationale: Remember the metaphase plate occupies the middle of the cell.
Question 3 of 5
In the ribosome of a cell, the mRNA is read to produce the particular amino acid sequence for the formation of a protein. What is this process called?
Correct Answer: A
Rationale: Translation occurs in the cytoplasm of a cell with a ribosome. It is when the information in mRNA is read to produce the sequence of amino acids needed to form a protein.
Question 4 of 5
Which system acts as the body's chemical control centre?
Correct Answer: A
Rationale: The endocrine system regulates bodily functions through hormones, acting as the chemical control center.
Question 5 of 5
Which of the following is a type of secretion in which some cytoplasm is lost with the product & is found in the mammary glands?
Correct Answer: C
Rationale: Apocrine secretion involves loss of some cytoplasm.