B4 - Respiration Flashcards Preview

BIOLOGY Unit 2-7 > B4 - Respiration > Flashcards

Flashcards in B4 - Respiration Deck (16)
Loading flashcards...
1
Q

What is anaerobic respiration and where does it occur in cells?

A

Respiration WITHOUT oxygen, in the cytoplasm

2
Q

Is respiration an endo- or exothermic reaction?

A

Exothermic

3
Q

State the balanced symbol equation for aerobic respiration.

A

C₆H₁₂O₆ + 6O₂ -> 6CO₂ + 6H₂O

4
Q

State the word equation for anaerobic respiration in animal cells.

A

Glucose -> lactic acid

5
Q

State the word equation for anaerobic respiration in plant and yeast cells.

A

Glucose -> ethanol + carbon dioxide

6
Q

Which transfers more energy, aerobic or anaerobic respiration?

A

aerobic respiration

7
Q

Why do heart rate, breathing rate and breathe volume increase when the body needs more energy?

A

To increase the oxygenation of the blood and to supply the muscles with more oxygenated blood

8
Q

What does a build-up of lactic acid cause in muscles?

A

Muscle fatigue

9
Q

What is an oxygen debt?

A

The amount of extra oxygen the body needs after exercise to react with the accumulated lactic acid and remove it from the cells

10
Q

What is produced when enzymes chemically break down proteins?

A

Amino acids

11
Q

What is “metabolism”?

A

The sum of all the reactions in a cell or the body

12
Q

Where is lactic acid converted back into glucose?

A

The liver

13
Q

What is produced when enzymes chemically break down carbohydrates?

A

Simple sugar monomers

14
Q

What is produced when enzymes chemically break down proteins?

A

Amino acids

15
Q

what does respiration supply which is needed by all living organisms?

A

energy

16
Q

When an organism dies why does the level of co2 rise?

A

Decomposers release co2 in respiration.