The main way acetylcholine is cleared from a synapse is by
A. degradation by an enzyme.
B. uptake by the postsynaptic cell.
C. reuptake by the presynaptic cell.
D. being engulfed by a supporting glial cell.
A
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Homeostasis and occupying space are both unique characteristics of living things
Indicate whether the statement is true or false
match the nucleic acid with its description.
deoxyribonucleic acid (DNA) - ribonucleic acid (RNA) it contains a sugar called ribose; it contains nitrogenous bases A, U, C, G; it consists of one nucleotide chain; it functions mainly in the cytoplasm; it carries out the instructions of DNA - it contains a sugar called deoxyribose; it contains nitrogenous bases A, T, C, G; it consists of two nucleotide chains (double helix); it functions in the nucleus; it codes for synthesis of RNA nd protein
Substances can enter a cell either with or against the concentration gradient by ________ transport, which is powered by ________.
A. passive; electrolytes B. active; ATP C. active; electrolytes D. passive; ATP
Define basic multicellular unit (BMU)
A. The clusters of chondrocytes within the metaphysis that will be converted to bone B. A group of osteoblasts and osteoclasts that work together during bone remodeling C. The osteoblasts found in the deepest layer of the periosteum, involved in appositional growth