Which of the following has the smallest size?
A neutron
A molecule of glucose
An atom of oxygen
A cell
A neutron
Explanation:
Subatomic particles (neutrons, electrons, and protons) combine to form atoms. Atoms combine to form molecules. Billions or even trillions of molecules combine to form cells.
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Which part(s) of the brain, when impaired by alcohol, play an important role in memory:
A. Nucleus accumbens
B. Hypothalamus
C. Hippocampus
D. All of the above
A person is exposed to a drug that prevents vesicles from forming in neurons. Predict the effect this will have on nerve function
A) Voltage-gated potassium channels will be blocked, slowing depolarization and slowing nerve impulses. B) Neurons will be hyper-excitable. C) Neurotransmitters won't be released into the synapse via exocytosis. D) Action potentials will not be carried through the axon.
Denitrification ____
a. converts ammonium to nitrates b. reduces nitrates to nitrites c. reduces ammonia to ammonium d. converts atmospheric nitrogen to ammonia e. converts nitrates to nitrogen gas
The energy of the electrons passing along the electron transport chain is used to produce ____.
Fill in the blank(s) with the appropriate word(s).