Bio6

Question 1

the building blocks of matter

Answer 1

Atom

Question 2

Center of atom with protons and neutrons

Answer 2

Nucleus

Question 3

”+” charged particles

Answer 3

Proton

Question 4

“0” charged

Answer 4

Neutron

Question 5

”-“ charged

Answer 5

Electron

Question 6

Pure substance that cannot be broken down into other substances by physical or chemical mean

Answer 6

Element

Question 7

Atoms of the same element that have different numbers of neutrons

Answer 7

Isotope

Question 8

Pure substance formed when 2 or more different elements combine

Answer 8

Compound

Question 9

Two atoms share one or more pairs of outer-shell electrons

Answer 9

Covalent bond

Question 10

Charged atom

Answer 10

Ion

Question 11

Is type of chemical bond that involves the electrostatic attraction between oppositely charged ions

Answer 11

Ionic bond

Question 12

An attraction that occurs when molecules come close together causing positive and negative regions to pull on molecules and hold the together

Answer 12

Van der waals force

Question 13

The process by which atoms or group of atoms in substance are reorganized into different substance

Answer 13

Chemical reaction

Question 14

The minimum amount of energy needed for reactants to form products in a chemical reaction

Answer 14

Activation energy

Question 15

A substance that lowers the activation energy needed to start a chemical reaction; remains unchanged at the end of reaction

Answer 15

Catalyst

Question 16

Protein that are biological catalysts that speed up the rate of chemical reactions in biological processes

Answer 16

Enzyme

Question 17

The reactants that bird to the enzymes

Answer 17

Substrate

Question 18

Specific location where a substrate binds on an enzyme

Answer 18

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