Why Are C4 Plants Able to Photosynthesize with No Apparent

question 19

Multiple Choice

Why are C4 plants able to photosynthesize with no apparent photorespiration?

• A) They do not participate in the Calvin cycle.
• B) They use PEP carboxylase to initially fix CO2.
• C) They are adapted to cold, wet climates.
• D) They conserve water more efficiently.
• E) They exclude oxygen from their tissues.

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Definitions:

Formal Operations

The stage in Piaget’s theory of cognitive development where adolescents and adults develop the ability to think about abstract concepts and logically test hypotheses.

Concrete Operations

A stage in cognitive development, according to Piaget, where children gain the ability to think logically about concrete events.

Preoperational Thought

A stage in cognitive development, according to Jean Piaget, where children aged 2-7 years are capable of using symbols and language but do not yet understand concrete logic.

Fluid Intelligence

Our ability to reason speedily and abstractly; tends to decrease during late adulthood.