Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

Match each term with the appropriate concept.

____ stomata a. separates cells in xylem tubes
____ nutrient b. takes up soil water and nutrients
____ hydrogen bonds c. required element
____ sink d. cohesion in xylem tubes
____ mot e. sugars unloaded from sieve tubes.
____ sieve plate f. distributes sugars
____ perforation plate g. separates cells in phloem tubes
____ xylem h. distributes water
____ phloem i. important for gas exchange

Summary Introduction

To match: The term with appropriate concept.


Stomata - i. important for gas exchange.

Guard cell in the plant leaves contains small opening structure called as stomata through which the water molecules escape. Excess water stored in the cells is allowed to escape through the stomata in the leaves. It controls the transfer of gaseous and water molecules during the transpiration.

Nutrient - c. required element.

Nutrient is an essential or required element that provides nourishment for growth and maintenance of life. Plant requires macronutrients and micronutrients for their growth.

Hydrogen bonds - d. cohesion in xylem tubes.

Water molecules that move from root to leaves are linked together by hydrogen bonds. Hydrogen bond ensures the hold between the water molecules and drags upward with respect to the transpiration pull.

Sink - e. sugar unloaded from the sieve tubes.

Sink is the regions of growing tissue in the plants that are in need of nutrients. The phloem tube loads the sugar from the source (leaves) and unloads at the sink region.

Root - b...

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