Chapter 2 Test

Question 1

If an atom has 11 protons, 12 neutrons, and 10 electrons, is it an anion, cation, or isotope?

Answer 1

Isotope

Question 2

True of False

Protons are positively charged and electrons negative

Answer 2

True

Question 3

What makes an isotope an isotope?

Answer 3

Different # of neutrons = Different # of atomic #

Question 4

What 4 elements make up 96% of the human body?

Answer 4

Carbon
Hydrogen
Oxygen
Nitrogen

Question 5

What is the most prominent element in humans?

Answer 5

Oxygen

Question 6

What makes atomic mass?

Answer 6

Protons + Neutrons

Question 7

Active Energy = Kinetic Energy

Then Inactive Energy = ?

Answer 7

Potential Energy

Question 8

How many strands of RNA are there?

Answer 8

1

Question 9

DNA is held by what kind of bonds?

Answer 9

Hydrogen Bond

Question 10

Enzyme has what macromolecule?

Answer 10

Protein

Question 11

What do enzymes do?

Answer 11

Speed up the rate

Question 12

Adenine pairs with what?

Answer 12

Thymine

Question 13

Macromolecules starches + glucose are?

Answer 13

Carbohydrates

Question 14

What is it called when a atom loses electrons?

Answer 14

Cation

Question 15

Define compound

Answer 15

Compound- 2 or more elements

Question 16

Polymer starch + to get monomers?

Answer 16

Hydrolysis

Question 17

Ph-7 is an acid, neutral, or base?

Answer 17

Neutral

Question 18

Properties of water?

Answer 18

Polar, cushion, high heat capacity, chemically reactive, universal solvent

Question 19

Glycogen is the storage of what sugar?

Answer 19

Glucose

Question 20

of electrons in the 1st shell?

Answer 20

2

Question 21

Difference between monosaccharides and disaccharides?

Answer 21

Mono- 6 carbons
Single sugar molecule

Di- 3-6 carbons
Consist of 2 monosaccharides

Question 22

Sugar in DNA is what?

Answer 22

Deoxyribose