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masalah 1
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What does ATP stands for?
- Adenosine triphosphorus
- Adenosine triphosphate
- Adenine triple power
- Adenine triphosphate
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Cellular Respiration (2ESH09)
AMELIA NATASYA
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masalah 2
pilihan
When is energy released from an ATP molecule?
- When the bond between the 1st and 2nd phosphate is formed
- When the bond between the adenine and ribose is broken
- When the bond between the 2nd and 3rd phoshate is broken
- When the bond between the adenine and glucose is formed
masalah 3
pilihan
How can ADP can be transformed into ATP?
- Removing energy and a phosphate group
- Adding energy and another ribose
- Adding energy and a phosphate group
- Removing adenine
masalah 4
pilihan
The greatest number of ATP molecules is produced in ...
- glycolysis
- chemiosmosis
- electron transport chain
- Krebs cycle
masalah 5
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Which of the following about cellular respiration is FALSE?
- ATP is produced in both glycolysis and pyruvate oxidation
- Pyruvate is produced in cytoplasm and transferred into mitochondria to be oxidised
- For each electron transferred from NADH to oxygen through electron transport chain, 3 ATP molecules are produced
- Substrate level phosphorylation does not involved ATP synthase enzyme
masalah 6
pilihan
Diagram shows the Krebs cycle.
Which of the following stages are NADH produced?
- I, II and IV
- I and II
- II and IV
- I, III and IV
masalah 7
pilihan
What is the function of molecular oxygen in cellular respiration?
- Causes breakdown of citric acid
- Combine with glucose to produce carbon dioxide
- React with H+ from organic molecules to form water
- Combine with carbon from organic molecules to form carbon dioxide
masalah 8
pilihan
Which pathway for aerobic cellular respiration is located in the cytoplasm of the cell?
- Glycolysis
- Krebs cycle
- Electron transport chain
- Calvin cycle
masalah 9
pilihan
Which of the following pathways will result in carbon dioxide and NADH being released but not ATP?
- Glycolysis
- Krebs cycle
- Electron transport chain
- Pyruvate oxidation
masalah 10
pilihan
Which molecule will combine with the four-carbon oxaloacetate in the Krebs cycle to form six-carbon citrate?
- NADH
- Acetyl CoA
- Pyruvate
- Isocitrate
masalah 11
pilihan
Choose the WRONG statement about cellular respiration.
- Glycolysis causes 6C glucose to split into two 3C pyruvate molecules
- Krebs cycle involves decarboxylation and oxidation.
- Krebs cycle and electron transport chain occur in the cytoplasm
- During glycolysis, substrate level phosphorylation occurs twice
masalah 12
pilihan
In chemiosmosis, ATP is produced as H+ pass through ...
- outer mitochondrial membrane
- ATP synthase
- ATP decarboxylase
- a series of electron carriers
masalah 13
pilihan
Which of the following does not occur during the process shown below?
- Production of acetyl coenzyme A
- Formation of ATP
- Splitting of ATP molecules
- Production of NADH
masalah 14
pilihan
The following reaction occurs in cells during cellular respiration.
Pyruvate → Acetyl CoA
Which of the following statement is TRUE about the above reaction?
- Takes place in the intermembrane space of the mitochondria
- Oxygen is required
- 3H+ are released and accepted by NAD+
- Carbon dioxide is released
masalah 15
pilihan
The energy released by the electron transport chain produces ATP by ...
- photophosphorylation
- substrate-level phosphorylation
- oxidative phosphorylation
- redox reaction
masalah 16
pilihan
Which of the following is NOT a feature of oxidative phosphorylation?
- Direct transfer of phosphate from a substrate molecule to ADP
- An electrochemical gradient across the inner mitochondrial membrane
- Involved membrane bound ATP synthase
- Produces proton-motive force
masalah 17
pilihan
Which of the following is the CORRECT sequence of processes in the oxidation of glucose?
- Krebs cycle – Glycolysis – Electron transport chain
- Glycolysis – Krebs cycle – Electron transport chain
- Electron transport chain – Krebs cycle - Glycolysis
- Krebs cycle – Electron transport chain - Glycolysis
masalah 18
pilihan
Figure shows part of the Krebs cycle.
If two molecules of α-ketoglutarate are changed to fumarate in the pathway above, the total ATP formed during aerobic respiration at this stage is ...
- 1
- 6
- 10
- 12
masalah 19
pilihan
Substrate-level phosphorylation takes place in ...
- electron transport chain and oxidative phosphorylation
- glycolysis and electron transport chain
- glycolysis and Krebs cycle
- pyruvate oxidation and Krebs cycle
masalah 20
pilihan
Which of the following statements about the generation of ATP in the electron transport chain is CORRECT?
- The generation of ATP from ADP coupled to electron transfer occurs by substrate level phosphorylation as in glycolysis
- Electron transport generates a proton gradient across the outer mitochondrial membrane
- ATP synthase generation of ATP involves a rotating structure outside the inner mitochondrial membrane
- ATP synthase generation of ATP involves a rotating structure inside the inner mitochondrial membrane
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