CAM Plants Keep Stomata Closed in the Daytime, Thus Reducing

question 56

Multiple Choice

CAM plants keep stomata closed in the daytime, thus reducing loss of water. They can do this because they ________.

• A) fix CO2 into organic acids during the night
• B) fix CO2 into sugars in the bundle-sheath cells
• C) fix CO2 into pyruvate in the mesophyll cells
• D) use the enzyme phosphofructokinase, which outcompetes rubisco for CO2
• E) use photosystem I and photosystem II at night

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Definitions:

Prices

The amount of money required to purchase a good or service, typically determined by supply and demand in the market.

Slope

The measure of the steepness or incline of a line, typically calculated as the ratio of the vertical change to the horizontal change.

Line

In a geometric sense, an infinitely long, straight figure with no thickness, extending in both directions and defined by a set of points that align.

Labor Force Participation

The ratio of the labor force to the total working-age population, indicating the percentage of the population that is either employed or actively seeking employment.