Cellular Respiration and The Chemistry of Cellular Respiration

Powerhouses of the cell and break down food to produce large amounts of energy.

• Endoplasmic Reticulum

• Organelles

• Ribosomes

• Mitochondria

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Jelly bean shaped structures that break down food molecules and release energy.

• cytoplasm

• lysosomes

• ribosomes

• mitochondria

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The number of ATP molecules produced out of Krebs Cycle is:

• 2

• 3

• 4

• 0

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ATP synthesis by ATP synthase is driven by

• H⁺ movement

• electron movement

• NADH movement

• FADH₂ movement

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In cellular respiration, the energy for most ATP synthesis is supplied by

• high-energy phosphate bonds in organic molecules.

• a proton (H+) gradient across a membrane.

• converting oxygen to ATP

• transferring electrons from organic molecules to pyruvate.

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Which of the following is a true statement about the Krebs cycle?

• It occurs in the cytoplasm of the cell.

• It does not require oxygen to proceed.

• It directly uses oxygen to produce ATP.

• It is an aerobic process, indirectly requiring oxygen.

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During the Krebs cycle, pyruvic acid molecules are broken down to harvest 2 ATPs. What is created and released as a byproduct of that reaction?

• CO2

• H2O

• Neither of these

• Both of these

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Match the parts based on the picture of an animal cell going through cellular respiration.

• Glucose

• The point of the process

• Carbon Dioxide

• Eaten

• ATP

• Stored or Excreted

• Water

• Breathed In

• Oxygen

• Breathed Out

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Select all that apply. The products of Cellular Respiration are:

• glucose

• water

• carbon dioxide

• oxygen

• ATP (energy)

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What are the reactants (taken into) of cellular respiration? (Mark all of them!)

• oxygen

• glucose

• carbon dioxide

• water

• energy

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