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3 years ago

8

Because the cell membrane is composed primarily of (no polar) lipids,small molecules and polar molecules can pass through the ce

ll membrane on their own. True or False

2 answers:

egoroff_w [7]3 years ago

5 0

Answer:

False

Explanation:

Large and polar molecules need to pass through ion channels since they cannot pass through the cell membrane on their own.

alexandr1967 [171]3 years ago

4 0

It is False :)))))))))))))))

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The respiratory system supplies oxygen to the blood in the body, while removing carbon dioxide. Which system directly interacts

Olegator [25]

Answer:

The correct option is <u>C. The nervous system when the brain regulates the body's breathing and heart rate.</u>

Explanation:

The main function of the respiratory system is to exchange oxygen for carbon dioxide in the body.

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The brain regulates the rate at which a person breathes. This rate is very important to breathe in the right amount of oxygen and to breathe out the right amount of carbon dioxide.

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Answer:

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3 years ago

What is the relationship between the nucleotides, nucleic acids, and DNA?

Anika [276]

Answer:

Explanation:

Nucleotides are building blocks of nucleic acids (DNA and RNA). A nucleic acid contains a chain of nucleotides linked together with covalent bonds to form a sugar-phosphate backbone with protruding nitrogenous bases. For example, DNA contains two such chains spiraling round each other in the famous double helix shape.

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3 years ago

Leto [7]

Answer:

the reprodutive cells of an organism

Explanation:

sex cells= gametes

somatic cells=body cells

simple cells (no nucleus)= cells in prokaryotes

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3 years ago

The reason the lactase gene is made is due to ?

yarga [219]

Answer:

milk is present in the digestive system, which turns on the gene for lactase.

Explanation:

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