Chp 2 Atoms, Ions, Molecules

Question 0

Atom

Answer 0

Smallest particle that exhibits properties of the element

Question 1

Matter is composed of?

Answer 1

Atoms

Question 2

How do radioactive isotopes differ from regular isotopes?

Answer 2

Unstable because of excess neutrons

Question 3

Can an ionic bond form between two cations or two anions?

Answer 3

No

Question 4

Isomers

Answer 4

Same chemical but different in 3D shape

Question 5

What are the four main elements in our body

Answer 5

C

H

N

O

Question 6

Nonpolar covalent bond

Answer 6

Share equally

Question 7

Polar covalent bond

Answer 7

Share unequally

Question 8

Amphipathic molecule

Answer 8

Some molecules polar in one location and Nonpolar in another

Question 9

Is water polar?

Answer 9

Yes

Question 10

Which property of water contributes to the need to produce surfactant and prevent collapse of lungs?

Answer 10

Surface tension

Question 11

Which property of water contributes to body temperature regulation through sweating?

Answer 11

Specific heat

Question 12

Electrolytes

Answer 12

Ions that can conduct current

Question 13

What are the three types of water mixtures?

Answer 13

Suspension

Colloid

Solution

Question 14

Suspension

Answer 14

Does not remain mixed unless in motion

Question 15

Colloid

Answer 15

Remains mixed when not in motion

Contains proteins

Question 16

Solution

Answer 16

Homogenous mixture of very small material

Remains mixed when not in motion

Question 17

Red blood cells settling at the bottom of test tube of blood, what type of mixture is this

Answer 17

All three

Question 18

Why is blood also considered the other two types of water mixtures?

Answer 18

Certain parts of it settle and some parts remain mixed

Contain protein

Question 19

What is the repeating monomer of glycogen?

Answer 19

Glucose

Question 20

Where is glycogen stored in the body?

Answer 20

Liver and skeletal muscle

Question 21

What are the structural differences in DNA and RNA?

Answer 21

RNA is single stranded where DNA is double stranded

U is unique to RNA

T is unique to DNA

Question 22

What are glycoproteins?

Answer 22

any of a class of proteins that have carbohydrate groups attached to the polypeptide chain. Also called glycopeptide.