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A&P II Test 3 > Acid Base 1 > Flashcards

Flashcards in Acid Base 1 Deck (13)
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1
Q

PH of venous blood

A

7.35

2
Q

PH of arterial blood

A

7.45

3
Q

Deviations in blood pH from a very narrow range of normal are called

A

PH imbalances

4
Q

3 mechanisms the body uses to regulate its pH balances

A

1) buffers
2) respiratory mechanisms
3) urinary mechanisms

5
Q

What enzyme converts co2 and h2o into carbonic acid

A

Carbonic anhydrase

6
Q

What is carbonic anhydrase

A

H2CO3

7
Q

Chemical substances that prevent a sharp change in the pH of a fluid when an acid or a base is added to it.

A

Buffers

8
Q

Buffers consist of two kinds of substances and are therefore often called

A

Buffer pairs

9
Q

One of the main buffer pairs

A

Baking soda and carbonic acid

10
Q

What is a fixed acid

A

Acids that do not break down to produce gas

11
Q

Arterial blood contains _______ X more pNaHCO3 than H2CO3

A

20

12
Q

Most abundant acid in body fluids

A

Carbonic acid

13
Q

Most acidic substance in the body

A

Gastric juice-1.6