Which one of the following is not a product of the lysosome?
A. Perioxidase enzyme
B. Nitric Acid (NO)
C. Cytokines
D. Superoxide anion (O2-)
E. Peptidoglycan-degrading enzyme
Answer: C. Cytokines
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The amino acid that operates at most inhibitory synapses in the brain is _____
A) acetylcholine B) epinephrine C) endorphin D) nitric oxide E) gamma-aminobutyric acid (GABA)
Gene regulation during sporulation in Bacillus subtilis involves BOTH temporal and spatial control.
Answer the following statement true (T) or false (F)
Most plant cells are pluripotent, meaning that they
a. constantly switch tissue types throughout their lives. b. cannot change after differentiating into a specific cell type. c. end up as a hybrid of tissue types. d. can function in any environmental condition. e. retain the ability to change cell types when necessary.
Scientists believe that peaks and valleys of______ over time are important for matching the body's circadian rhythm to the external cycle of light and darkness -Adenosine -GABA -Melatonin -Zeitgebers
Fill in the blank(s) with the appropriate word(s).