Quiz Two Chem Of Life

Question 1

What is an element

Answer 1

A substance that can’t be breaken down any further

Question 2

What is an atom

Answer 2

The smallest part of an element.

Question 3

Compound

Answer 3

Pure substance made of two or more chemically combined different elements

Question 4

Proton

Answer 4

Positively charged part of an atom in the nucleas

Question 5

Neutron

Answer 5

Neutral parts of an atom located in the nucleas

Question 6

Electron

Answer 6

Negatively charged in the electron cloud

Question 7

Isotope

Answer 7

Has a different number of neutrons but same element

Question 8

Ionic bond

Answer 8

One atom takes an electron (between a metal and non metal)

Question 9

Covalent bonds

Answer 9

Two atoms share electrons (between two non metals)

Question 10

Polar

Answer 10

One side is positively charged and one is negative

Question 11

Adhesion

Answer 11

The property of water to stick to other substances

Question 12

Cohesion

Answer 12

The property of water to stick to itself

Question 13

Buffer

Answer 13

Resists changes in pH

Question 14

Capillary action

Answer 14

Water goes up narrow tubes

Question 15

Base

Answer 15

Has a pH higher than 7

Question 16

Acid

Answer 16

Has a pH lower than 7

Question 17

ph

Answer 17

Level of acidity

Question 18

Hydrogen bond

Answer 18

Hydrogen bonding to an electronegative atom

Question 19

Activation energy

Answer 19

The energy needed to fuel a reaction

Question 20

Active site

Answer 20

The part of an enzyme that attaches to a substrate

Question 21

Catalyst

Answer 21

Speeds up or slows down a reaction

Question 22

Product

Answer 22

The result of a chemical reaction

Question 23

Enzyme

Answer 23

Acts as a catalyst in the human body

Question 24

Substrate

Answer 24

A protein that needs to be changed by an enzyme

Question 25

Enzyme substrate complex

Answer 25

The enzyme and substrate connected during the reaction