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Vesnalui [34]
3 years ago
7

Which organelle provides protections and support to a cell? Cell wall, Cytoplasm, Nucleus, Ribosome ​

Biology
2 answers:
givi [52]3 years ago
5 0

Answer:

The answer is a cell wall.

Explanation:

Cytoplasm is the organelle that keeps the other organelles together. The nucleus is the cell that conducts and instructs the cells activities. The ribosome contains RNA. Cell wall is the most reasonable.

Zigmanuir [339]3 years ago
5 0

Answer: A cell wall :)

Explanation:

I did the quiz with a 100%

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Answer:

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Explanation:

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alexandr402 [8]

Answer:

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Explanation:

5 0
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TiliK225 [7]
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<span>As a professional athlete repeats a given activity many times over, the nerve cells "upregulate" their receptors, meaning that they produce additional receptors to put in the membrane. This is just a natural reaction to the nerve being repeatedly stimulated in the same way over and over. When neurotransmitter is secreted from the presynaptic neuron, there are more receptors on the postsynaptic neuron for it to bind, more channels open up, more ions enter in a shorter time and build up positive charge to create the impulse faster, and so the overall effect is faster. </span>

<span>Additionally, there are sheaths of fatty tissue (called myelin) that insulate the charge in the neuron and allow it to be conducted faster. As people age, these sheaths can start to degrade, making the nerve cell more "leaky" and causing the impulse to be conducted more slowly. </span>
8 0
4 years ago
Read 2 more answers
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