Which type of receptor undergoes a conformational change upon activation? (Select all correct choices.)
A. G protein-coupled receptor
B. receptor kinase
C. ligand-gated ion channel
D. nuclear receptor
A,B,C,D
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Answer the question using the accompanying figure. Mitosis is occurring in step(s) ____
a. 7 only b. 8 only c. 10 only d. 7 and 8
e. 7, 8, and 10Prokaryotes were split into two domains based on differences in
a. staining characteristics. b. metabolic capabilities. c. rRNA sequences. d. cell membrane properties. e. cell wall composition.
The best definition of antigen is
A) Something foreign in the body. B) A chemical that elicits an antibody response and can combine with these antibodies. C) A chemical that combines with antibodies. D) A pathogen. E) A protein that combines with antibodies.
Organisms that enter humans (whether for a short period such as hours or days [transient] or permanently) and multiply and may or may not interfere with normal body functions. This is also known as:
A. Mutualism B. Disease C. Colonization D. Parasitism