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3 years ago

Which of the following is the most accurate distinction between organic molecules and inorganic molecules?

Biology

1 answer:

svetoff [14.1K]3 years ago

7 0

Answer:

Organic molecules are composed primarily of carbon atoms bound to other atoms and most inorganic molecules are not.

Explanation:

The organic compounds have as a fundamental element carbon, an element which is tetravalent because it has four covalent bonds. Carbon can form chains of variable length, thanks to that. You can also find hydrogen in those chains that's why we can say that the organic compounds are formed by hydrocarbon chains (carbon and hydrogen). Living things, we do synthesize organic and inorganic molecules and, of course we consumed both.

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What is the function of the medulla oblongata?

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The medulla oblongata helps regulate breathing, heart and blood vessel function, digestion, sneezing, and swallowing.

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3 years ago

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An operon is controlled by a repressor. When the repressor binds to a small molecule, it binds to DNA near the operon. The opero

larisa [96]

Answer:

Negatively repressible.

Explanation:

A control which occurs through repressor is known as negative control which may be inducible or repressible.

When a small molecule named as allolactose binds this repressor it leads to allosteric repulsion which removes repressor from the operator as a result of which RNA polymerase can start transcription. Allolactose is therefore known as inducer because it induces lac operon expression.

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2 years ago

PLEASE RESPOND IF YOU KNOW AND QUICK <3

sweet-ann [11.9K]

Answer:

1. A. carbon,hydrogen,nitorgen and oxygen

2.C. Nucleotides

3.A.Brain

4.D. Polysaccharide

5. B.Amino acids contain nitrogen; fatty acids and sugars do not.

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3 years ago

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Which statement provides a possible explanation for the growth

Shtirlitz [24]

Answer:

3) Uncontrolled cell division occurred as a result of gene mutations

Explanation:

Spontaneous modifications within the genome may occur during the process of cell division. When copies of the DNA inside the cell are made, these mutations cause errors; and can include small single nucleotide polymorphisms, and large scale additions or deletions across multiple genes.

Some, like somatic mutations, exist only inside vegetative (body) cells, that cannot be passed onto offspring. This is caused by several factors like

UV radiation,
chemical mutagens,
infective agents

UV radiation damages strands of DNA, by causing dimers to form; here, consecutive nucleotide bases covalently bond instead of those on the complementary strand. This conformational change causes errors in DNA proofreading and repair mechanisms where bases are not well-incorporated into the strand- tumors (clumps of uncontrolled cell growth) may form, resulting in melanoma, a type of skin cancer.

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2 years ago

How are the parts of the solution mixed?

blagie [28]

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