What generally triggers the release of calcium ions by ryanodine receptors?

a) potassium efflux
b) an action potential
c) IP3 uptake
d) IP3 release
e) sodium influx


Ans: b) an action potential

Biology & Microbiology

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Tetanus is:

A. a muscle contraction of sustained force. B. a contraction caused by a single action potential. C. an abnormal muscle contraction. D. a contraction where the muscle does not change length. E. a contraction that slowly increases in force.

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The genes encoding for proteins involved in photosynthesis are located in the chloroplast

Indicate whether the statement is true or false.

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During DNA replication, the continuous daughter strand is the leading strand

Indicate whether the statement is true or false

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Male gamete having a haploid number of chromosomes and the ability to fertilize an egg, the female gamete.

What will be an ideal response?

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