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WorksheetsA level Respiration
Total questions: 18
Worksheet time: 10mins
Glycolysis involves what processes?
Addition of ATP to phosphorylate pyruvate
Oxidation of triose phosphate using coenzyme NAD
Reduction of triose phosphate using coenzyme NAD
Decarboxylation of pyruvate
Addition of ATP to phosphorylate glucose
Glycolysis occurs in the...
Matrix of the mitochondria
Cristae of the mitochondria
Cytoplasm of the cell
Inner membrane space of the cristae
The link reaction requires what processes?
Removal of carbon dioxide
oxidation of pyruvate using NAD
The addition of Coenzyme A
The reduction of pyruvate using NAD
State the name of the substrate that enters the Krebs cycle from the link reaction
Pyruvate
Acetylcoenzyme A
coenzyme A
citrate
oxaloacetate
ATP a useful molecule. Which statement is NOT a correct reason?
It can be regenerated quickly
It can be broken down in one step
It can be used to phosphorylate molecules
it can be transported out of the cell.
How is ATP generated in the Krebs cycle
oxidative phosphorylation
photophosphorylation
Substrate level phosphorylation
anaerobic fermentation
What is the name of ATP
adenine triphosphate
adenosine triphosphate
amino triphosphate
aminosine triphosphate
Why is oxygen needed for the electron transfer chain to continue
oxidises ATP synthase to generate ATP
reduces ADP to produce ATP
acts as the final electron acceptor
acts as the final acceptor for coenzymes NAD and FAD
The flow of Hydrogen ions through ATP synthase leading to the generation of ATP is an example of...
Osmotic theory
simple diffusion
Active transport
Chemiosmotic theory
Proteins can also be a respiratory substrate. What needs to happen first before it is respired?
decarboxylation (removal of carbon)
dehydrogenation (removal of hydrogen)
deamination (removal of amino groups)
Respiration requires multiple enzymes at many stages. What reasons help explain how competitive inhibitors slow down these reactions?
They have a similar shape to the active site.
Reduce the amount of enzyme-substrate complexes forming.
raise the activation energy of a reaction
alter the tertiary structure of the active site permanently
State the location of the link reaction
Cytoplasm of the cell
Matrix of the mitochondria
Cristae of the mitochondria
Inner membrane space of the mitochondria
anaerobic respiration in animals involves...
the production of ethanol
the production of lactate
the release of carbon dioxide
coenzyme FAD
anaerobic respiration in plants involves...
the production of carbon dioxide
the production of ethanol
the production of lactate
coenzyme FAD
What is produced in the anaerobic pathway which allows glycolysis to continue
ATP
lactate
NAD
Reduced NAD
Which molecules contain Nitrogen
DNA
ATP
NAD
Glucose
Pyruvate
The oxygen taken up by organisms has an important role in aerobic respiration. Which answer explains why?
It provides the source of electrons in the electron transfer chain enabling the electrons to move through the chain.
Oxygen binds with ADP and inorganic phosphate to form ATP in a hydrolysis reaction
It provides a large surface area for the attachment of coenzymes and electron carriers that transfer electrons along the chain.
Oxygen is the final acceptor of electrons and hydrogen in the electron transfer chain. Without it, electrons would accumulate along the chain and respiration would stop.
The surface of the inner mitochondrial membrane is highly folded to form cristae. What is the advantage of this?
To give a larger surface area for Rubisco to fix CO2 to RuBP
So that the proportion of energy transferred through the chain is even
It provides a large surface area for the attachment of coenzymes and electron carriers that transfer electrons along the chain.
It is so that oxygen can be the final acceptor of electrons and hydrogen in the electron transfer chain.
