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soldi70 [24.7K]
3 years ago
6

if the item was marked up by 1/2 before it was placed on the sales floor, what was the price that the store paid

Biology
1 answer:
shusha [124]3 years ago
8 0
Let the item be x

x=30.00

half of 30 is 15

add 15

get your answer 45.00

fill in x with the real number
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An inhibitory stimulus has occurred. B. Chemically gated potassium channels have opened. C. Excessive potassium has diffused out
andrezito [222]

Given question is incomplete. Complete question has been attached.

Answer:

C. Excessive potassium has diffused out causing hyperpolarization.

Explanation:

The nerve action potential can be divided into following stages:

  • Stimulus is detected by the cell in resting stage.
  • Sodium channels in the membrane open from where influx of sodium ions occur which is called depolarization
  • After a while, sodium channels close and potassium channels open from where efflux of potassium ions occur which is called repolarization.
  • The membrane potential further lowers due to continous efflux of potassium ions which is called hyperpolarization.
  • After a while potassium channels close and membrane returns to its resting stage.

In the given figure, stage 4 depicts hyperpolarization because the membrane potential has dropped to the lowest point below -70mV. Hence, option C is correct.

7 0
3 years ago
Acetylcholinesterase (AChE) is a protein that catalyzes the conversion of acetylcholine to acetate and choline. When the concent
miv72 [106K]

The correct statement is that the concentration of acetylcholine will be inhibited by enzymes and can cause several diseases as follows:

  • Alzheimer's disease-related to damage to brain cells,
  • memory loss,
  • and thinking ability.

How to reduce the symptoms of these diseases is to use drugs that contain cholinesterase inhibitors.

<h2>Further Explanation </h2>

Acetylcholine is a neurotransmitter that plays an important role in the functioning of the autonomic nervous system. Acetylcholine is one of the most commonly recognized neurotransmitters or nerve stimulating chemicals. These neurotransmitter compounds can be found in the nervous system.

There are several side effects of the acetylcholine drug, which are as follows:

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  • Excessive salivation
  • Stomach ache
  • Headache
  • Blood vessel dilation
  • Nausea and vomiting
  • Diarrhea is a sign of an increase in parasympathetic tone.

Learn More

  1. about chemicals brainly.com/question/8735339
  2. about enzymes brainly.com/question/6577765

Details

Grade: Middle School

Subject: Biology

Keyword: chemicals, enzymes, Acetylcholine, neurotransmitter

5 0
3 years ago
Read 2 more answers
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