Photosynthesis and Cellular Respiration

What do you call the process wherein plants make their own food?

• cellular respiration

• photosynthesis

• protein synthesis

• carbon fixation

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Which of the following is NOT a requirement of photosynthesis?

• oxygen

• water

• light energy

• carbon dioxide

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Mesophyll layer of the leaf plays an important role in trapping light energy from the sun upon which photosynthesis mostly take place in this layer. Why is this so?

• because it contains air spaces

• because it is transparent allowing light to penetrate

• because it has the greatest number of chloroplasts

• because it provides an entrance and exit for gases

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NGSS.HS-LS1-5

What are the products of light-dependent reaction used to power the light-independent reaction?

• Sugar and ATP

• Oxygen and NADPH

• NADPH and ATP

• NADPH and carbon dioxide

Cellular respiration starts with glycolysis, which occurs in the cytoplasm, producing 2 pyruvic acid. Which of the following processes will allow cellular respiration to continue in case oxygen is absent?

• Krebs Cycle

• Electron Transport Chain

• aerobic respiration

• anaerobic respiration

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All organisms get energy from food to perform different life processes. It is done by converting stored energy from food into chemical energy for cell use. Which of the following is associated with the production of chemical energy?

• vacuole

• chloroplast

• mitochondrion

• nucleus

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How many ATP molecules are needed to split glucose into two?

• 2 ATP

• 4 ATP

• 6 ATP

• 8 ATP

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In glycolysis, glucose is broken down into two molecules of pyruvate, a 3- carbon molecule. This is accompanied by a net gain of how many ATP and NADH molecules?

• 4 ATP and 2 NADH

• 2 ATP and 4 NADH

• 4 ATP and 4 NADH

• 2 ATP and 2 NADH

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Why does Calvin cycle needs the products of light phase?

• Because it is needed to convert oxygen into sugar.

• Because it is needed to convert sugar into oxygen.

• Because it is needed to convert carbon dioxide into sugar.

• Because it is needed to convert sugar into carbon dioxide.

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NGSS.HS-LS2-5

How are photosynthesis and cellular respiration related to each other?

• The products of one process are the reactants of the other.

• The products of photosynthesis and cellular respiration are just the same.

• The reactants of photosynthesis and cellular respiration are just the same.

• The reactant and the product of photosynthesis and cellular respiration are just the same.

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