Test Review Retake

Question 0

Data

Answer 0

Information gathered from observations

Question 1

Observation

Answer 1

Gathered information about events or processes

Question 2

Controlled Expirement

Answer 2

1 variable is changed at a time

All other variables are kept the same

Question 3

Theory

Answer 3

Hypothesis is well supported by evidence to become a theory

Question 4

Homeostasis

Answer 4

Maintain a stable internal environment

Question 5

Metabolism

Answer 5

Obtain and use materials (energy)

Question 6

What makes up the nucleus

Answer 6

Protons

Neutrons

Question 7

What surrounds the nucleus

Answer 7

Electrons

Question 8

What is an isotope

Answer 8

Same element but has a different number of neutrons

Question 9

Mass number

Answer 9

Sum of protons and neutrons

Question 10

Compound

Answer 10

Combination of two or more elements

Question 11

Valence

Answer 11

Outer most energy level (electrons)

Question 12

Atomic Number

Answer 12

Number of protons

Question 13

Ion

Answer 13

Positive and negative atoms form ions

Question 14

Solute

Answer 14

Substance that dissolves

Question 15

Solvent

Answer 15

Substance that dissolves the solute

Question 16

Activation energy

Answer 16

Energy needed to get a reaction started

Question 17

Compound light microscope

Answer 17

Allows light to pass through specimen and uses two lenses to form an image

Question 18

Cell culture

Answer 18

Group of cells develops from a single cell

Question 19

Cell fractionation

Answer 19

Separate different parts of a cell

Question 20

What type of charge does a proton have

Answer 20

Positive

Question 21

Where is a Proton found

Answer 21

Nucleus (center)

Question 22

What type of charge does an electron have

Answer 22

Negative

Question 23

What type of charge does a neutron have

Answer 23

Neutral

Question 24

What type of ion does a base produce

Answer 24

Hydroxide ions

Question 25

What is a base on the Ph scale

Answer 25

8-14

Question 26

What color is a base

Answer 26

Blue

Question 27

What happens during a chemical reaction

Answer 27

Bonds between atoms are formed or broken

*conservation of mass: nothing is created or destroyed

Question 28

What is a monomer

Answer 28

Smallest part of a polymer

Question 29

What is a covalent bond

Answer 29

Share of an electron(s)

Ex: water h20

Question 30

What is an ionic bond

Answer 30

Transfer of electron(s)

Ex: salt NaCl

Question 31

What is an example of a covalent bond

Answer 31

Water

Question 32

Whats and example of an ionic bond

Answer 32

Salt

Question 33

What is the smallest part of a protein

Answer 33

Amino acid

Question 34

A bunch of amino acids together make up a what

Answer 34

Protein

Question 35

An enzyme happens in a….

Answer 35

Living thing

Question 36

What is an enzyme also known as

Answer 36

Catalyst

Question 37

What does a catalyst do

Answer 37

Speeds up the rate of a chemical reaction

Question 38

What is an enzyme classified as

Answer 38

Protein

Question 39

What is a polymer

Answer 39

Bunch of monomers together

Question 40

What is a substrate

Answer 40

Reactant in an enzyme

Question 41

Solution

Answer 41

When you combine things and cant tell the difference

Ex: kool aid

Question 42

What is an example of a solution

Answer 42

Kool aid

Question 43

What type of ion does an acid produce

Answer 43

Hydrogen ion

Question 44

What is an acid on the Ph scale

Answer 44

0-6

Question 45

If an acid is very strong what number is it closer to on the Ph scale

Answer 45

0

Question 46

If an acid is less potent what number is it closer to on the Ph scale

Answer 46

6