Chapter 26

Carbon, hydrogen, and oxygen are examples of ______ for plants. a. macronutrients b. micronutrients c. trace elements d. essential elements e. both a and d

\(A\) ______ strip in endodermal cell walls forces water and solutes to move through root cells, not around them. a. cutin b. lignin c. Casparian d. cellulose

The nutrition of some plants depends on a root-fungus association known as a ______ a. root nodule b. mycorrhiza c. root hair d. root hypha

In phloem, organic compounds flow through ______ a. collenchyma cells b. sieve tubes c. vessels d. tracheids

Water evaporation from plant parts is called ______ a. translocation b. expiration c. transpiration d. tension

Water transport from roots to leaves occurs by ______ a. pressure flow b. differences in source and sink solute concentrations c. the pumping force of xylem vessels d. cohesion-tension among water molecules

In daytime, most plants lose ______ and take up ______ a. water; carbon dioxide b water; oxygen c. oxygen; water d. carbon dioxide; water

At night, most plants conserve ______ and ______ accumulates. a. carbon dioxide; oxygen b. water; oxygen c. oxygen; water d. water; carbon dioxide

Match the concepts of plant nutrition and transport. $$ \text {stomata} \quad \quad\quad\quad\quad \text {a. evaporation from plant parts} $$ $$ \text {nutrient} \quad \quad\quad\quad\quad \text {b. harvesting soil nutrients} $$ $$ \text {\(\operatorname{sink}\)} \quad \quad\quad\quad\quad \text {c. balance water loss with carbon dioxide requirements} $$ $$ \text {root system} \quad \quad\quad\quad\quad \text {d. cohesion in water transport} $$ $$ \text {hydrogen bonds} \quad \quad\quad\quad\quad \text {e. sugars unloaded from sieve tubes} $$ $$ \text {transpiration } \quad \quad\quad\quad\quad \text {f. organic compounds distributed through the plant body} $$ $$ \text { translocation} \quad \quad\quad\quad\quad \text {g. element with roles in metabolism that no other element can fulfill} $$