Answer the following statements true (T) or false (F)
1. Gamma aminobutyric acid (GABA) is the most common inhibitory neurotransmitter in vertebrates.
2. Ionotropic receptors act by activating G proteins in target cells.
3. Metabotropic receptors act by initiating changes in second messenger systems in target cells.
4. Meningitis is solely a bacterially caused disease.
5. Synaptic vesicles discharge their contents at the axon hillock region.
1. TRUE
2. FALSE
3. TRUE
4. FALSE
5. FALSE
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The anticodon loop of the first tRNA that will complement this mRNA is
A) GGC B) GGC C) ACG D) UGC E) UGC
Construct a conversion table for mass. Construct it so that if you wish to convert a measurement from one unit to another, you multiply it by the number at the intersection of the original unit and the new unit.
Leaf aging is retarded by ____
a. salicylic acid b. abscisic acid c. cytokinins d. ethylene e. gibberellins.
What cell type engulfs pathogens and foreign particles and signals to the immune system to report the presence of a threat?
a. lymphocytes b. B cells c. phagocytes d. mucus-producing cells e. normal flora