Energy Flows into the Biological World from The

question 4

Multiple Choice

Energy flows into the biological world from the:

• A)oceans
• B)plants
• C)sun
• D)volcanoes
• E)large animals

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Definitions:

Hot Dry Climates

Climates characterized by low humidity and high temperatures, often found in desert regions and areas with a long dry season.

CAM Plant

Plant that carries out crassulacean acid metabolism; carbon is initially fixed into organic acids at night in the reaction of CO2 and phosphoenolpyruvate, catalyzed by PEP carboxylase; during the day the acids break down to yield CO2, which enters the Calvin cycle. Compare with C3 plant and C4 plant.

Calvin Cycle

A series of biochemical redox reactions that take place in the stroma of chloroplasts in photosynthetic organisms and is a light-independent reaction.

Carbohydrate

Organic compounds consisting of carbon, hydrogen, and oxygen, typically in a ratio of 1:2:1, serving as a major energy source for the body.