Photosynthesis Adaptation in Plants

What is carbon fixation?

• The process of converting carbon dioxide into organic compounds

• The process of converting organic compounds into carbon dioxide

• The process of converting oxygen into carbon dioxide

• The process of converting carbon dioxide into oxygen

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2-ENE

Which plants are known as C3 plants?

• Corn and sugarcane

• Soybeans, oats, wheat, and rice

• Pineapples and aloe

• Orchids and bromeliads

What is the major drawback of C3 photosynthesis in arid environments?

• Low sugar production

• High water loss

• Low carbon dioxide levels

• High oxygen levels

Which plants utilize C4 carbon fixation?

• Soybeans, oats, wheat, and rice

• Corn and sugarcane

• Pineapples and aloe

• Orchids and bromeliads

What is the main difference between C4 and C3 photosynthesis?

• Carbon fixation and the Calvin cycle occur in different types of cells in C4 photosynthesis

• Carbon fixation and the Calvin cycle occur in the same cells but at different times in C4 photosynthesis

• Carbon fixation and the Calvin cycle occur in different types of cells in C3 photosynthesis

• Carbon fixation and the Calvin cycle occur in the same cells but at different times in C3 photosynthesis

Which plants use CAM photosynthesis?

• Soybeans, oats, wheat, and rice

• Corn and sugarcane

• Pineapples and aloe

• Orchids and bromeliads

What is the main characteristic of CAM photosynthesis?

• Stomata open at night and admit CO2

• Stomata close during the day to conserve water

• Carbon fixation and the Calvin cycle occur in different types of cells

• Carbon fixation and the Calvin cycle occur in the same cells but at different times

Which form of photosynthesis is most common in plants?

• C3 photosynthesis

• C4 photosynthesis

• CAM photosynthesis

• None of the above