Loading of Most Carbohydrates Produced by Photosynthesis into Companion Cells

question 25

Multiple Choice

Loading of most carbohydrates produced by photosynthesis into companion cells at a source occurs by ____.

• A) osmosis
• B) proton pumping
• C) suction from unloading at a sink
• D) active transport
• E) diffusion of water from the xylem

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Definitions:

Close Friends

Individuals with whom one shares a deep, personal connection, marked by feelings of care, understanding, and trust.

Disengagement Theory

A theory suggesting that the aging process involves a gradual withdrawal or disengagement from social roles, relationships, and activities.

Activity Theories

Theories that propose older adults remain satisfied when they engage in activities that maintain their abilities and are consistent with their interests.

Aging

The process of becoming older, encompassing a range of physical, cognitive, and social changes over time.