ATI RN
Cells and Tissues Questions and Answers Questions
Question 1 of 5
Which one of the following cell types is found in epithelial tissue?
Correct Answer: C
Rationale: Keratinocytes produce keratin, the protein of the epidermis, which is epithelial tissue.
Question 2 of 5
Which of the following is ONE major function of epithelial cells?
Correct Answer: B
Rationale: Glandular tissue are one type of epithelial tissue and their function is to produce material to secrete.
Question 3 of 5
Facilitated diffusion differs from active transport because facilitated diffusion:
Correct Answer: C
Rationale: Diffusion always refers to movement from high to low concentration(without energy expenditure). Facilitated refers to the assistance provided by a transport molecule that is designed for the purpose.
Question 4 of 5
What is the name given to the type of transport where glucose or an amino acid binds to a receptor protein on the plasma membrane, which then moves the molecule into the cell without the expenditure of energy?
Correct Answer: A
Rationale: The membrane protein facilitates the entry into the cell. No energy is expended so it is not active transport.
Question 5 of 5
What is the major component of the plasma membrane of a cell?
Correct Answer: A
Rationale: Cholesterol and proteins are also present in the plasma membrane but as more minor components.