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| In depolarization the membrane potential moves toward zero, whereas in hyperpolarization the membrane potential moves away from zero. | True |
| The tiny bulge at the end of a terminal branch of a presynaptic neuron’s axon is called a(n) | Synaptic Knob |
| is sometimes called autoregulation. | Intrinsic control: |
| The contraction of the uterus during the birth of a baby is an example of _____ feedback. | positive |
| A structural lipid found in the cell membrane is a: | steroid and triglyceride. |
| Which of the following is not one of the major groups of organic substances in the human body? | Salts |
| A _____ is a functional group that is temporarily unattached and is highly reactive because of unpaired electrons. | free radical |
| The term glycoprotein, a combination of two words, tells you that the compound is made of _____, with _____ being the dominant component. | carbohydrate and protein; carbohydrate |
| A chemical that reduces the amount of activation energy needed to start a chemical reaction is a(n) | catalyst. |
| The component that distinguishes one nucleotide from another is the | nitrogen base. |