The Transfer of Energy Random Retrieval

This quiz contains all the questions in the The Transfer of Energy section. The website will pick 20 questions at random.

1 / 20

The above diagram shows the Phosphorus cycle. Name type of organism which carries out process A?

Nitrosomonas

Mycorrhizae

Saprobiont

2 / 20

True or False : Fungi can increase the uptake of inorganic ions from the soil by a plant.

TRUE

FALSE

3 / 20

Which process can occur due to the actions of Nitrosomonas bacteria?

F

B

C

4 / 20

This diagram shows part of the nitrogen cycle. Which two processes form nitrification?

A & B

B & C

C & D

5 / 20

Anaerobic respiration allows the regeneration of NAD+ in all organisms, which allows glycolysis to continue. How many ATP's are gained during anaerobic respiration of one glucose molecule?

2

4

6

6 / 20

The diagram above shows one form of anaerobic respiration, name molecule 'Z'.

Ethanol

Pyruvate

Lactate

7 / 20

The diagram above represents anaerobic respiration in which type of organism?

Plants

Some Bacteria

Animals

8 / 20

In which stage of respiration is oxygen required?

Link

Krebs

Electron Transport Chain

9 / 20

What term is used to describe the whole process of using energy from electrons in Redox reactions to generate ATP called?

Reductive Phosphorylation

Substrate Level Phosphorylation

Oxidative Phosphorylation

10 / 20

Name molecule 'Z'

11 / 20

Isocitrate dehydrogenase is an enzyme used in the Krebs cycle to convert Citrate into the 5C intermediate. IDH1 is an inhibitor of Isocitrate dehydrogenase. If IDH1 acted as a competitive inhibitor of the enzyme, how would it reduce enzyme activity?

By binding to an allosteric site, altering the tertiary structure of the active site, making it non-complementary to substrates.

By binding to the active site, changing the tertiary structure and therefore making it non-complementary to the substrate.

By blocking the active site, thereby reducing the formation of enzyme-substrate complexes.

12 / 20

A single molecule of W is produced per turn of the Krebs cycle, and it carries hydrogen off to the ETC. What is it?

Reduced FAD

Reduced NAD

Reduced WAD

13 / 20

What happens to molecule C?

It leaves the mitochondria to be recycled.

It is recycled back to the link reaction.

It carries H ions to the ETC.

14 / 20

How many times does the Krebs cycle happen per glucose molecule?

1

2

6

15 / 20

Which graph represents the effect of changing the temperature on the rate of photosynthesis?

B

C

D

16 / 20

Explain the results in tube 3.

DCPIP is oxidised for electrons for the electron transfer chain.

DCPIP is reduced by electrons from the electron transfer chain.

DCPIP is photosensitive, and is decolourised by light.

17 / 20

How many molecules of C are required to produce one molecule of glucose?

1

2

3

18 / 20

Name the enzyme that converts A to B.

Glycisco

Glycerate Carboxylase

Rubisco

19 / 20

Which chemical does 'E' represent?

NAD

NADP

NADPH

20 / 20

High energy' electrons leave the chlorophyll molecule: What state does that leave the chlorophyll molecule in?

Oxidised

Reduced

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