Compounds And Elements

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

An organic compound is any member of a large class of gaseous, liquid, or solid chemical compounds whose molecules contain carbon.

Question 3

Inorganic compound

Answer 3

inorganic compound, any substance in which two or more chemical elements other than carbon are combined, nearly always in definite proportions. Compounds of carbon are classified as organic except for carbides, carbonates, cyanides, and a few others.

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

Lipid

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

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.