Respiration Part 3

​CHAPTER 12 - PART 3

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Multiple Choice

What is the role of NAD in respiration?

• as an oxygen acceptor

• as a hydrogen carrier molecule

• as an acetyl group carrier

Multiple Choice

What is the role of CoA in respiration?

• as a hydrogen carrier molecule

• as a final oxygen acceptor

• as a carrier of acetyl group

Multiple Select

What is the role of oxygen in respiration? Pick 2 answers.

• as a final electron acceptor

• as a hydrogen ion acceptor

• as an acetyl group carrier

• as a product

Open Ended

List the events that takes place during oxidative respiration.

Multiple Choice

• A

• B

• C

• D

​LEARNING OUTCOME:

Explain how rice is adapted to grow with its roots submerged in water

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Describe and carry out investigations usingredox indicators, including

DCPIP and methylene blue,

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Features of xerophytes such as marram grass..

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​RECALL FROM AS-LEVEL

Intentionally flooded

Weed cannot survive​

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But can the rice plant get oxygen and carbon dioxide when submerged in water?​

gases diffuses much more slowly in water, less concentration of gases in water​

Construct a table to summarise the features of rice

​Features How this helps plant to survive with its roots submerged in water

Subject | Subject

Some text here about the topic of discussion

Aerenchyma tissue in the leaves and stems

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Aerobic respiration​

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.Able to tolerate high concentration of ethanol.​

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​Produce more ethanol dehydrogenase (breaks down ethanol)

​Some text here about the topic of discussion.

​ANAEROBIC RESPIRATION

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REVIEW CHAPTER 12

​Some text here about the topic of discussion.

Open Ended

Explain why the energy value of lipid is twice that of carbohydrate [2]

Open Ended

What is meant by respiratory quotient (RQ)?

State the respiratory substrate for each of the given RQ

Open Ended

Dahlia plants store a compound called inulin , which is a polymer of fructose. The structure of fructose is shown in the diagram. Calculate the RQ when inulin is hydrolysed and then respired aerobically

Open Ended

9700/41/m/j 2022

Q3. The ATP synthesised in respiration can be used to make larger and more complex biological molecules from smaller molecules.

Name the type of reaction that occurs when larger more complex biological molecules are made from smaller molecules.

Open Ended

b. The first part of glycolysis uses ATP. Explain why ATP is needed in the first part of glycolysis [2]

c. State the precise locations of substrate-linked phosphorylation reactions in aerobic respiration [1]

d. Explain what happens to pyruvate in the link reaction in aerobic respiration [2]

Open Ended

9700/43/m/j 2022

a. ATP is synthesised from ADP and Pi in a phosphorylation reaction. State the two different ways in which this phosphorylation reaction occurs in aerobic respiration [2]

b. Coenzymes are important in all four stages of aerobic respiration. Describe and explain the role of the coenzymes NAD and FAD in aerobic respiration.