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Shalnov [3]
3 years ago
7

Complete the statement to describe the calcium concentration that must be maintained in human body cells.

Biology
2 answers:
Lilit [14]3 years ago
6 0

Answer:

outside and inside

Explanation:

Complete the statement to describe the calcium concentration that must be maintained in human body cells.

The calcium concentration must be greater  

outside

the cell than  

inside

the cell.

andrezito [222]3 years ago
4 0

Answer:

The calcium concentration must be greater OUTSIDE

the cell than INSIDE the cell.

Explanation:

Calcium has a vital role in the body, it is necessary for:

  • exocytosis
  • muscle contraction
  • normal excitability of neurons
  • blood coagulation
  • building and maintaining bones and teeth
  • enzymatic activity
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Answer:

This question is incomplete

Explanation:

This question is incomplete but the completed question can be seen in the document attached.

There are three main subatomic particles namely electrons, protons and neutrons. However, the question only discusses two of them; electrons (negatively charged) and protons (positively charged).

A. Found in all matter

Answer: They are <u>both</u> found in all matter since all matter are made up of atoms and all atoms have both protons and electrons (and even neutrons).

B. Negative charge

Answer: The subatomic particle with negative charge (as discovered by R.A Millikan) is the <u>electron</u>

C. Exists in the nucleus

The subatomic particles found in the nucleus are the <u>protons</u> and neutrons.

D. Attract opposite charges

They <u>both</u> (protons and electrons) attract opposite charges because they are of opposite charges and generally unlike charges attract.

E. Moves at extreme speed

Of the two subatomic particles mentioned, <u>electrons</u> move faster than protons because of there lighter mass when compared to the protons. However, the fastest subatomic particle is the neutrino.

F. Bound by strong force

The <u>protons</u> are bound by strong nuclear force which binds them to the nucleus of the atom.

Download docx
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The smallest living unit within the human body is
Annette [7]
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