Which of the following membrane proteins must be an integral protein to carry out its function?
A. Enzyme
B. Ion channel
C. Marker molecule
D. Receptor protein
Answer: B
You might also like to view...
What cell gives rise to all formed elements?
A) proerythroblast B) hematopoietic stem cell (HSC) C) reticulocyte D) erythroblast
Which of the following statements is true about both symphyses and synchondroses?
a) They are fibrous joints. b) They contain hyaline cartilage. c) They do not have a joint cavity. d) They are amphiarthroses.
The main reason food is digested is so that
A. its taste can be enhanced. B. nutrients can be absorbed into the bloodstream. C. it can be converted to waste. D. solids can be converted to liquids.
Which of the following statements regarding NK cells is a false or incorrect statement?
A) NK cells attack cells that display abnormal or lack MHC antigens. B) NK cells are a type of neutrophil. C) NK cells attack cancer cells and virus-infected body cells. D) NK cells are present in the blood, spleen, lymph nodes, and red bone marrow.