CHEMICAL COMPOUNDS

Question 0

Compound

Answer 0

A substance made of two or more elements chemically combined in a specific ratio, or proportion.

Question 1

Element

Answer 1

A pure substance that cannot be broken down into other substances by chemical or physical means.

Question 2

Organic compound

Answer 2

Compounds that have carbon.

Question 3

Inorganic compounds

Answer 3

Compounds that don’t contain carbon.

Question 4

Carbohydrate

Answer 4

An energy-rich organic compound, such as a sugar or a starch, that is made of the elements carbon, hydrogen, and oxygen.

Question 5

Iipid

Answer 5

An energy-rich organic compound, such as a fat, oil, or wax, that is made of carbon, hydrogen, and oxygen.

Question 6

Protein

Answer 6

Large organic molecule made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.

Question 7

Enzyme

Answer 7

1. A type of protein that speeds up a chemical reaction in a living thing. 2. A biological catalyst that lowers the activation energy or reactions in cells.

Question 8

Nucleic acid

Answer 8

A very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains the instructions cells need to carry out all the functions of life.

Question 9

DNA

Answer 9

Deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring.