Respiration

Question 2

What’s external respiration? Where does it take place in mammals?

Answer 2

Process by which organisms exchange gases with their environment. In lungs.

Question 3

What’s internal respiration?

Answer 3

Controlled by release of energy from food

Question 4

What food is usually involved in internal respiration?

Answer 4

Glucose

Question 5

When ATP breaks down it?

Answer 5

Supplies energy (for all the metabolic reactions in the cell)

Question 6

What % of the energy used in glucose is converted to ATP during aerobic respiration?

Answer 6

40%

Question 7

Give equation to represent aerobic respiration.

Answer 7

C H O + 6O —> 6CO + 6H O + energy
6 12 6 2 enzymes 2 2
(glucose) (oxygen) (carbon dioxide) (water) (ATP)

Question 8

How many stages are involved in aerobic respiration?

Answer 8

2

Question 9

What is cytosol?

Answer 9

Cytoplasm minus organelles

Question 10

What’s aerobic respiration?

Answer 10

The controlled release of energy from food using oxygen

Question 11

What’s anaerobic respiration?

Answer 11

The controlled release of energy from food without the use of oxygen

Question 12

What’s fermentation?

Answer 12

Another name for anaerobic respiration?

Question 13

Another name for anaerobic respiration is?

Answer 13

Fermentation

Question 14

Give a difference between anaerobic and aerobic.

Answer 14

Less energy in anaerobic respiration

Question 15

Lactic acid forms when we’re short of oxygen, give 3 causes of being short of oxygen.

Answer 15

1) vigorous exercise
2) choking
3) asthma

Question 16

When someone rests where does lactic acid go, how does it get there and what happens it?

Answer 16

Taken to the liver by the blood and broken down

Question 17

Describe what happens in alcohol fermentation.

Answer 17

Three-carbon molecules are converted to ethanol and carbon dioxide

Question 18

What’s biotechnology?

Answer 18

The use of living things and their components to make useful products or carry out useful reactions

Question 19

What’s a bioreactor?

Answer 19

A vessel which the biological reactions take place in

Question 20

What are stage 1 reactions called?

Answer 20

Glycolysis

Question 21

What’s glycolysis?

Answer 21

Glucose broken down into 2 pyruvic acid

Question 22

Give 3 points in glycolysis?

Answer 22

1) glucose is broken
2) energy is released
3) NADH is formed