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Chapter 17 > powerpoint 3 > Flashcards

powerpoint 3 Flashcards

1
Q

What kind of charge does an ion have?

A

an electrical charge

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2
Q

What is a valance?

A

+ or -

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3
Q

What is a cation?

A

A positively charge ion

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4
Q

What is an anion?

A

A negatively charged ion

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5
Q

What are cations attracted to?

A

Anions

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6
Q

What is ionization?

A

Dissociation of compounds into their perspective ions

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7
Q

what can a free standing ion do?

A

combine with other substances to form acids, bases, or salts

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8
Q

What does the body require for proper functioning?

A

all electrolytes

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9
Q

what are the organs involved in homeostatic actions to maintain electrolyte balance?

A

kidneys, adrenal glands, parathyroid and thyroid glands

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10
Q

What is permeability?

A

ability to allow molecules to pass thru membrane

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11
Q

What is the capillary membrane?

A

freely permeable

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12
Q

What is the cellular membrane?

A

Selectively permeable

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13
Q

What is not required for passive transport?

A

Energy

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14
Q

What is required for active transport?

A

energy

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15
Q

What does active transport include?

A

diffusion, osmosis and filtration

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16
Q

When is active transport used?

A

When molecules are too large or too specialized to pass thru the membrane without assistance

17
Q

What is diffusion?

A

Random movement of molecules from an area of high concentration to an area of low concentration

18
Q

What is osmosis?

A

H2o diffusion over semi-permeable membranes.

19
Q

In Osmosis H2o moves passively from an area of what to what

A

area of low concentration to an area of high concentration

20
Q

What is filtration?

A

Transport of solvents and dissolved solutes thrus a membrane from an area of high concentration to an area of low pressure

21
Q

What does active transport require?

A

Energy

22
Q

What is sooooo necessary for homeostatis?

A

balance

Chapter 17 (5 decks)

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