LE Homework 2.2

How does carbon flow between photosynthesis and cellular respiration?

• Photosynthesis produces carbon dioxide from glucose made by the process of cellular respiration.

• Cellular respiration produces carbon dioxide from glucose made by the process of photosynthesis.

• Photosynthesis produces carbon dioxide from ATP made by the process of cellular respiration.

• Cellular respiration produces carbon dioxide from ATP made by the process of photosynthesis.

Which of the following items are the main inputs, or reactants, in cellular respiration? Select all correct answers.

• Pyruvate

• Glucose

• Carbon Dioxide

• Oxygen

Which of the following items are the main outputs, or products, of cellular respiration? Select all correct answers.

• Water

• Energy

• Oxygen

• Carbon Dioxide

Before cellular respiration, glucose must be broken down by the process of

• photosynthesis.

• glycolysis.

• electron transport.

• fermentation.

Cellular Respiration occurs in three steps.

(A) Electron Transport Chain

(B) Glycolysis

(C) Krebs Cycle

Which is the correct order by letter from start to finish?

• B, C, A

• A. B, C

• A, C, B

• C, B, A

Which processes provide evidence for the claim that energy is transferred during cellular respiration? Select all correct answers.

• the electron transport chain

• carbon dioxide is released

• hydrogen ions move down the concentration gradient across the inner membrane

• transfer of electron carriers such as NADH and FADH₂

• water is formed

Is oxygen always necessary for the production of ATP in your cells?

• Yes, ATP is only produced during the electron transport chain, which requires oxygen.

• No, ATP is only formed during anaerobic processes.

• Yes, cellular respiration is aerobic and it produces ATP.

• No, ATP is also formed during glycolysis, which can continue without oxygen for a limited time period.

Which of the following groups of organisms use cellular respiration in mitochondria to produce ATP for their energy needs?

• plants only

• eukaryotes

• animals only

• prokaryotes