ATI RN
Questions on Cells Tissues and Organs Questions
Question 1 of 5
What do fibroblasts, chondroblasts, osteoblasts and haemocytoblasts have in common?
Correct Answer: C
Rationale: The suffix "-blast" implies that these cells have not yet finished their differentiation. That is are immature.
Question 2 of 5
Which one of the following best describes what a cell membrane consists of?
Correct Answer: B
Rationale: These are the three major constituents. Ribosomes and cytoplasm are found inside the cell.
Question 3 of 5
Epithelial and connective tissue differ from each other in which of the following characteristics?
Correct Answer: C
Rationale: The other choices are not correct.
Question 4 of 5
The cell membrane's resting potential(about −70 mV inside with respect to the outside) is due mainly to which of the following mechanisms?
Correct Answer: A
Rationale: The ATPase pump shifts 3 Na+ out of the cell and 2 K+ into the cell. This disparity in positive charge is the major influence on the resting potential.
Question 5 of 5
The process by which information is read from DNA, encoded and transported outside the nucleus is known as:
Correct Answer: B
Rationale: To "transcribe" is to record the information from a source and to record it at another place(onto mRNA). Then messenger RNA moves out of the nucleus