Which ion channel is primarily responsible for the action potential?
A. the voltage-gated sodium channel
B. the voltage-gated potassium channel
C. the ligand-gated sodium channel
D. the ligand-gated potassium channel
E. the non-gated sodium channel
A. the voltage-gated sodium channel
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Peroxisomes
A) are not derived from the endoplasmic reticulum. B) are bounded by double membranes. C) possess acid phosphatase activity. D) possess amylase activity. E) all of the above
The primates first arose about how many million years ago?
a. 30 b. 40 c. 50 d. 60 e. 70
Gonococcal infections result in lifelong immunity against Neisseria gonorrhoeae.
Answer the following statement true (T) or false (F)
The cytoplasmic membrane of bacteria is strengthened by
a. isoprene. b. hopanoids. c. lipoteichoic acids. d. integral proteins.