The correct temporal sequence for events at the neuromuscular junction is
A. action potential in the motor nerve;
depolarization of the muscle end plate;
uptake of Ca2+ into the presynaptic nerve terminal
B. uptake of Ca2+ into the presynaptic terminal;
release of acetylcholine (ACh);
depolarization of the muscle end plate
C. release of ACh;
action potential in the motor nerve;
action potential in the muscle
D. uptake of Ca2+ into the motor end plate;
action potential in the motor end plate;
action potential in the muscle
Select your answer:
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Inherited & Acquired Traits Trauma T Cells History of Immunology Philosophy Infection Control Joints Excretion-Dialysis Health and Diseases Healthy Lifestyle Physical Activity Disability Etiquette & Physical Activities Nerve Injuries in Oral & Maxillofacial Surgery Vitamins and Minerals Safety TermsOther quiz:
Heredity and Living Cells › ViewDo both animal and plant cells have chloroplasts? Explain why or why not.
A. No, not all. Chloroplasts contain a green pigment called chlorophyll. All plant cells have chloroplasts, but only some animal cells, such as green frogs, have chloroplasts.
B. Yes. Chloroplasts contain a green pigment called chlorophyll. All plant cells have chloroplasts, but only some animal cells, such as green frogs, have chloroplasts.
C. Yes. Chloroplasts transport important molecules for the cell to use. All cells need to be able to harness energy for food and chloroplasts get their name from chlorophyll, which is a green pigment used for photosynthesis giving plants their food. They are named chloroplasts because they were discovered in plant cells before they were discovered in animal cells.
D. No. Chloroplasts contain chlorophyll, which plants use to absorb light energy as part of photosynthesis. Animals do not perform photosynthesis, so they do not have chloroplasts.
Public Health and Genetic Disease › View
Mutations are a change in what?
A. DNA
B. tRNA
C. genotype
D. phenotype