Cell life - 1.6 Respiration

Question 1

What is respiration ?

Answer 1

Respiration is carried out by all cella to release energy from food

Question 2

The energy released from the breakdown of glucose is used to ?

Answer 2

Generate ATP

Question 3

The energy transferred by ATP can be used for ?

Answer 3

Cellular activities

Question 4

What are examples of cellular activities that require ATP ?

Answer 4

Muscle cell contraction
Cell division
Protein synthesis
Transmission of nerve impulses

Question 5

Describe the first stage of respiration ?

Answer 5

Glucose is broken down into 2 molecules of pyruvate

Question 6

What will happen to future breakdowns ?

Answer 6

Further breakdowns depend upon the presence/ absence of oxygen

Question 7

If oxygen is present and aerobic respiration takes place what will happen to each pyruvate ?

Answer 7

Each pyruvate is broken down into carbon dioxide and water releasing enough energy to yield

Question 8

What is the word summary of the process of aerobic respiration ?

Answer 8

Glucose + oxygen → carbon dioxide + water + energy

Question 9

Will fermentation take place with an absence of oxygen ?

Answer 9

Yes, the fermentation pathway takes place

Question 10

In animal cells what is pyruvate broken down into during fermentation ?

Answer 10

Lactate

Question 11

What is the word summary of the process in an animal cell ?

Answer 11

Glucose → Lactate + energy

Question 12

What is the word summary of the process in a plant and yeast cell ?

Answer 12

Glucose → carbon dioxide + ethanol + energy

Question 13

Where does respiration begin ?

Answer 13

Cytoplasm

Question 14

Where is the process of fermentation complete ?

Answer 14

Cytoplasm

Question 15

Where is aerobic respiration completed ?

Answer 15

Mitochondria