Unit 1, Module 4 - Respiration Flashcards Preview

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Flashcards in Unit 1, Module 4 - Respiration Deck (11):
0

What forms does energy exist in?

Potential energy
Kinetic energy

1

What are the important facts about energy that must be remembered?

It cannot be created or destroyed only converted from one form to another.
It is measured in joules or kilojoules.
It has many forms.

2

Why do living organisms need energy?

To drive their metabolic processes.

3

What metabolic processes need energy?

Active transport.
Secretion.
Endocytosis.
Synthesis of large molecules from smaller ones.
Replication of DNA and synthesis of organelles before a cell divides.
Movement.
Activation of chemicals.

4

What does ATP stand for?

Adenosine triphosphate.

5

What does each molecule of ATP consist of?

Adenosine - adenine and ribose sugar
Three phosphate groups

6

How much energy is released when ATP is hydrolysed to ADP and Pi?

30.6 KJ energy per mol.

7

What can ATP be described as?

The universal energy currency.

8

What are the four stages of respiration?

Glycolysis
Link reaction
Krebs cycle
Oxidative phosphorylation

9

Which stages of respiration only take place under aerobic conditions?

Link reaction
Krebs cycle
Oxidative phosphorylation

10

What happens to pyruvate under anaerobic conditions?

Is converted to either ethanol or lactate.