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Cellular Respiration

AMELIA NATASYA
122
1
Masalah tambahan (20/ 20)
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masalah 1

pilihan

What does ATP stands for?

  • Adenosine triphosphorus
  • Adenosine triphosphate
  • Adenine triple power
  • Adenine triphosphate

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

pilihan

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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