The Following Steps Occur in Rods When They Are Excited

question 62

Multiple Choice

The following steps occur in rods when they are excited by photons of light. 1.Membrane sodium channels close.
2) Increased phosphodiesterase breaks down cGMP.
3) Retinal changes from the 11-cis form to the 11-trans form.
4) The membrane hyperpolarizes and the rate of neurotransmitter release declines.
5) Opsin activates transducin.
6) Opsin activation occurs.
The proper sequence for these steps is

• A)1,6,5,2,4,3.
• B)3,6,5,2,1,4.
• C)6,3,5,2,1,4.
• D)3,6,5,1,2,4.
• E)1,3,4,5,6,2.

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Definitions:

Maturity Bond

A bond at the end of its term, at which point the principal amount is due to be paid back to the bondholder.

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A type of bond that pays the holder periodic interest payments based on the stated coupon rate and then returns the principal at maturity.

Market Yield

The annual income return on an investment, expressed as a percentage of the market price.

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The nominal value printed on a security or financial instrument, such as a bond or stock, at issue.