SB1e- Cell Energetics

What happens when light energy hits a molecule of chlorophyll?

• The chlorophyll absorbs all wavelengths.

• The chlorophyll disintegrates (breaks down).

• The chlorophyll absorbs mainly green and yellow light.

• The chlorophyll reflects mainly green and yellow light.

What is the source of oxygen produced in photosynthesis?

• carbon dioxide

• glucose

• air

• water

Where does the process of photosynthesis primarily occur in a plant?

• The cells of the plant's roots.

• The cells of the plant's flowers

• The cells of the entire plant.

• The cells of the plant's leaves

Which of the following is required for the light reactions to occur?

• sunlight

• water

• carbon dioxide

• both sunlight and water

Which of the following is a result of photosynthesis?

• Plants produce carbon dioxide.

• Heterotrophs can get energy directly from the sun.

• Levels of carbon dioxide in the atmosphere decrease.

• Plants' leaves change color in the fall.

What colors of light are most useful for photosynthesis?

• green and yellow

• red and green

• infrared and ultraviolet

• red and blue

What happens when the last phosphate bond of ATP is broken?

• Energy is released

• Energy is absorbed

• A cell can perform photosynthesis.

• A cell can perform cellular respiration

Where is most ATP produced within eukaryotic cells?

• mitochondria

• nucleus

• cytoplasm

• chloroplast

In the presence of oxygen, all cells synthesize ATP via the process of cellular respiration. How can cells make ATP in the absence of oxygen?

• fermentation

• aerobic respiration

• oxidative phosphorylation

• ATP synthase

In what type(s) of cells does cellular respiration occur?

• Plant cells

• Plant and animal cells

• animal cells

• plant, animal and yeast cells