U1 BIOCHEMISTRY: Chemical Basis of Life

Question 1

Water can have two different types of “hesion” what are they

Answer 1

Cohesion- H20+H20

Adhesion- H20+ Another material

Question 2

Solutions are made up of what two parts?

Answer 2

Solute (dissolves)

Solvent

Question 3

[solute]+[solvent]=

Answer 3

100% solution

Question 4

If a solution is made up of 35% H20 and 65% of a solvent what is the tonicity of the solution?

Answer 4

65% (the % of your solvent)

Question 5

If the [solute]ICF is > [solute]ECF and the [H20]ICF is

Answer 5

Hypotonic Environment

Hypertonic Cell

Question 6

If the [solute]ICF is [H20]ECF what kind of environment and cell is it?

Answer 6

Hypertonic Envn

Hypotonic Cell

Question 7

If the [solute]ICF is= [solute]ECF and the [H20]ICF is =[H20]ECF what kind of environment and cell is it?

Answer 7

Isotonic Evn

Isotonic Cell

Question 8

What are two examples of passive transport?

Answer 8

Diffusion and Osmosis

Question 9

When is passive transport required and when is it not?

Answer 9

• Needed when transportation requires energy

- Not needed when energy is not required

Question 10

Define a molecule:

Answer 10

Group of atoms bonded together

Question 11

Isotopes are..

Answer 11

different forms of a given atom. # of neutrons are different # of protons are the same

Question 12

Ions are..

Answer 12

an atom or group of atoms w/ extra positive or negative charge.

Question 13

Cations are an ion where

Answer 13

an atom looses an electron and becomes positive

Question 14

Anions are an ion where

Answer 14

Atoms gain an electron and become negative

Question 15

Isomers (LEGO) ;)

Answer 15

Same formula just rearranged in different ways

Question 16

High energy bonds mean…

Answer 16

a bond between two atoms that releases a lot of energy

Question 17

Covalent bonds between atoms are formed when…

Answer 17

Two atoms share a pair of electrons

Question 18

A molecule is said to become reduced when it (OIL RIG) ;)

Answer 18

Gains an electron

Question 19

A molecule is said to become oxidized when it (OIL RIG) ;)

Answer 19

Looses an electron

Question 20

On the Ph scale what factor does each number increase by?

Answer 20

Factor of 10

Question 21

On the Ph scale, what #(s) are acidic, neutral and basic

bitch

Answer 21

1-6 ACIDIC

7 NEUTRAL

8-14 BASIC (BITCHHH)

Question 22

What is the difference between Hydrophobic and hydrophilic

Answer 22

HydroPHOBIC- does not like H20

HydroPHILLIC- loves the wader

Question 23

Polar is when..

Answer 23

the partcial positive charges on the H and the partial negative charges on the oxygen in H20 bond together

Question 24

List the strengths of the bond from 1-4

Answer 24

1. Covalent
2. Ionic
3. Hydrogen
4. Van der Walls