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Dvinal [7]
3 years ago
11

Which of the following are examples of ligand-gated ion channels? Choose all of the correct answers.

Biology
1 answer:
Juliette [100K]3 years ago
7 0

Answer: B) nicotinic Acetylcholine (ACh) receptor

C) muscarinic ACh receptor

Explanation: Ligand-gated ion channels are receptor channels that produce or respond to signals through the binding of some extracellular intracellular small molecule that causes the opening or closing of the channel. In Ligand-gated ion channels, the binding of the mushroom alkaloid muscarine (in the case of a muscarinic acetylcholine receptor) or the binding of nicotine ( in the case of nicotinic Ach receptors) to its receptor on the plasma membrane causes a conformational change in the receptor, causing the ion channel intrinsic to the receptor to open. The opening of the channel results in inward movement of positive charges such as sodium, calcium and potassium ions into the cell.

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Answer:

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Six foods that are rich in phytochemicals.

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Complete a Punnett square that shows a test cross for a tall pea plant (RR x rr). Place the plant to be tested at the top of the
shepuryov [24]

Answer:

we'll use () to indicate the different boxes

      ( )   (r)    (r)

     (R)  (Rr)  (Rr)

     (R)  (Rr)  (Rr)

You will have a 2 by 2 cell for your answer.  One set of your test (rr) will go across the top as is shown and the other will be vertical (RR) as shown.  Go down the line and put the letter you see at the top in each box and then do the same going across.

      ( )   (r)   (r)

      ( )   (r)   ( )

      ( )   (r)   ( )

      ( )   (r)   (r)

     (R)  (Rr) (R)

     (R)   (r)   ( )

I tried to make this a comprehensible as possible but just draw your diagram and put the letters in the exact order as shown and then read this.  It may make more sense that way.

Explanation:

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