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spin [16.1K]
3 years ago
13

Which description of smooth muscle tissue is most accurate? which description of smooth muscle tissue is most accurate? centrall

y located nucleus; involuntary control; propels substances or objects multinucleate; striated cells; voluntary control contains myofilaments; is a composite tissue; contains actin and myosin involuntary control; branched cells; striated cells?
Biology
1 answer:
bogdanovich [222]3 years ago
3 0
Protein in muscle and mirco cell
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Which of the following is not a function of protein?
masha68 [24]
C. Insulating the body

Insulating the body is not a function of a protein.

Lipids are macromolecules which provide insulation. 
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1 Which of the following statements is not true concerning all living things?
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Answer:

they have cell walls as an outer boundry

Explanation:

the cells of all living things do not have cell wall. animal cells do not have cell wall. protozoans also do not have cell wall. while cells of plants algae fungi and bacteria have cell wall.

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2 years ago
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I think its D

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Refer to the Biochemistry in Focus section of your text for this chapter to answer this question. Sarin inhibits acetylcholinest
DENIUS [597]

Answer:

c. Pyridostigmine binds to the acetylcholinesterase active site and prevents sarin from binding to and modifying the enzyme active site.

Explanation:

Sarin is a toxic compound which inhibits acetylcholinesterase enzyme. This enzyme degrades the neurotransmitter acetylcholine after the required muscle cell stimulation. In absence of its activity, acetylcholine is not degraded and the muscle cells are stimulated uncontrollably. The muscles are not able to relax which ultimately proves fatal for the victim.

Pyridostigmine is also an acetylcholinesterase inhibitor like Sarin. However its period of inhibition is short compared to organophosphorus inhibitors like sarin. It competes with sarin and replaces it in the active site of acetylcholinesterase. The enzyme is still inhibited but for a shorter time as compared to inhibition by Sarin. Hence after sometime, it becomes functional again and resumes its normal activity. Acetycholine starts getting degraded relaxing the muscles.

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2 years ago
A client has a high level of carbon dioxide (co2) in the bloodstream, as measured by arterial blood gases. a nurse reviewing the
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It will cause vasodilation of blood vessels in the brain.

CO2 is one of the metabolic end products that can alter the tone of the blood vessels in the brain. High CO2 levels cause vasodilation, which may cause headache, whereas low CO2 levels cause vasoconstriction, which may cause lightheadedness. The statements included in the other options are incorrect effects.

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3 years ago
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