A&P 3b Flashcards Preview

A&P 1 > A&P 3b > Flashcards

Flashcards in A&P 3b Deck (18)
Loading flashcards...
1
Q

What are 5 things that describe cellular respiration?

A
  • Exergonic multistep metabolic pathway
    • Organic molecules oxidized and disassembled by a
    series of enzymes
    • Potential energy in chemical bonds released
    • Energy used to make ATP (endergonic process)
    • Oxygen required
2
Q

Glucose oxidation is?

A
  • Step by step breakdown of glucose with energy release

– Carbon dioxide and water formed

3
Q

Chemical equation, cellular respiration?

A

C6H12O2 + 6 O2 6 CO2 + 6 H2O

4
Q

Some of the energy of broken bonds can be captured to

attach _____ to ADP

A

phosphate group

5
Q

Direct synthesis of ATP called

A

substrate-level phosphorylation

6
Q

Oxidative phosphorylation is…

A
  • energy first released to coenzymes (e.g., NAD+, FAD)

* that energy then transferred to form ATP

7
Q

Enzymes for glucose oxidation are found in what parts of the cell?

A

the cytosol and mitochondria

8
Q

Stages of glucose oxidation?

A

-glycolysis, citric acid cycle, electron transport system

9
Q

Glycolysis is what type of cellular respiration?

A

anaerobic cellular respiration

10
Q

Glycolysis occurs where? & can occur without?

A

occurs in cytosol

• can occur without oxygen

11
Q

The electron transport system is what type of respiration?

A

aerobic cellular respiration = requires oxygen

12
Q

Where does the electron transport system occur?

A

in the mitochondria

13
Q

Glucose is broken down into what during glycolysis?

A

into two pyruvate molecules

14
Q

Pyruvates fate depends on what during glycolysis?

A

oxygen availability

15
Q

Glycolysis has a net production of what molecules?

A

two ATP and two NADH

16
Q

Glycolysis pathway contains how many enzymes?

A

10

17
Q

If sufficent O2 is available what happens to pyruvate ?

A

pyruvate enters mitochondria

18
Q

If insufficent O2 is available what happens to pyruvate?

A

pyruvate converted to lactate