ATI RN
Cells and Tissues Questions and Answers Questions
Question 1 of 5
Cardiac muscle tissue is primarily found in which organ?
Correct Answer: B
Rationale: Cardiac muscle is found only in the heart, enabling its pumping action.
Question 2 of 5
Cardiac muscle cells are connected by specialized junctions called:
Correct Answer: C
Rationale: Gap junctions connect cardiac muscle cells for synchronized contractions.
Question 3 of 5
The movement of water molecules across a selectively permeable membrane is called:
Correct Answer: C
Rationale: Osmosis is the passive movement of water across a selectively permeable membrane.
Question 4 of 5
What cellular structure is responsible for photosynthesis in plant cells?
Correct Answer: D
Rationale: Chloroplasts contain chlorophyll and perform photosynthesis in plant cells.
Question 5 of 5
Which of the following is a function of the smooth endoplasmic reticulum?
Correct Answer: B
Rationale: The smooth ER synthesizes lipids and detoxifies harmful substances.