ATI RN
Chapter 2 Cells and Tissues Review Questions Questions
Question 1 of 5
A certain gene has 1200 nucleotides (bases) in the coding portion of one strand. The protein coded for by this gene consists of:
Correct Answer: A
Rationale: 1200 nucleotides / 3 (codon size) = 400 amino acids in the protein.
Question 2 of 5
Identify the cell structure that allows the cell to maintain its shape and allows for cellular movement.
Correct Answer: A
Rationale: The cytoskeleton, made of microtubules and filaments, maintains cell shape and enables movement.
Question 3 of 5
Identify the function of DNA.
Correct Answer: A
Rationale: DNA encodes instructions to control protein production via gene expression.
Question 4 of 5
The diffusion of water across a semipermeable membrane is called
Correct Answer: C
Rationale: Osmosis is the passive diffusion of water across a semipermeable membrane.
Question 5 of 5
Which of the following does NOT occur during interphase?
Correct Answer: C
Rationale: Chromosomes condense during prophase of mitosis, not interphase.