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Test 1 | BIOL - Cell Biology 3 - Advanced, Quizzes of Cell Biology

Test Class: BIOL - Cell Biology 3 - Advanced; Subject: Biology / Biological Sciences; University: Ohio Wesleyan University; Term: Forever 1989;

Typology: Quizzes

2009/2010

Uploaded on 01/30/2010

dddrenic
dddrenic 🇺🇸

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TERM 1
Ion
DEFINITION 1
An ion is an atom or molecule where the total number of
electrons is not equal to the total number of protons, giving it
a net positive or negative electrical charge.
TERM 2
Cation
DEFINITION 2
More protons than electrons, positive charge
TERM 3
Anion
DEFINITION 3
Fewer protons than electrons, negative charge
TERM 4
Molectular Size Order
DEFINITION 4
Atoms>Molecules>Macromolecules
TERM 5
Oxidation
DEFINITION 5
Electron loss
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TERM 1

Ion

DEFINITION 1

An ion is an atom or molecule where the total number of

electrons is not equal to the total number of protons, giving it

a net positive or negative electrical charge.

TERM 2

Cation

DEFINITION 2

More protons than electrons, positive charge

TERM 3

Anion

DEFINITION 3

Fewer protons than electrons, negative charge

TERM 4

Molectular Size Order

DEFINITION 4

Atoms>Molecules>Macromolecules

TERM 5

Oxidation

DEFINITION 5

Electron loss

TERM 6

Reduction

DEFINITION 6

Electron gain

TERM 7

Properties of water

DEFINITION 7

Cohesion-Hydrogen bonds hold water molecules together. Leaves pull water upward from the roots; seeds swell and germinate High specific Heat-Hydrogen bonds absorb heat when they break and release heat when they form, minimizing temperature changes.Water stabilizes the temperature of organisms and the environment. High heat of vaporization-Many hyudrogen bonds must be broken for water to evaporate. Evaporation of water cools body surfaces Lower density of ice-Water molecules in an ice crystal are spaced far apart because of hydrogen bonding. Lakes do not freeze solid, allowing fish and other life to survive. Solubility-Polar water molecules are attracted to ions and polar compounds, making them soluble. Many kind of molecules can move freely in cells, permitting a diverse array of chemical reactions TERM 8

pH

DEFINITION 8

(acidity) Measure of hydrogen concentration in a solution 7=

neutral, 8+ base, 6- acid

TERM 9

Buffer

DEFINITION 9

A substance that acts as a reservoir for hydrogen ions,

donating them when their concentration falls and takin

ghtem from the solution when their concentration rises

TERM 10

Key buffer in human blood

DEFINITION 10

combination of carbonic acid (H2CO3) and bicarbonate

(HCO3-)