Chapter 3: Adaptations to Terrestrial EnvironmentsMost terrestrial plants obtain nutrients and water from the soil.1. The field capacity of the soil isa. the number of plants it can support.b. the amount of water held against gravity.c. the amount of nutrients the soil can hold.d. the nutrients accessible to plants.Answer: b
2. Which is NOT a nutrient that plants obtain from the soil?
3. At what water potential does wilting begin to occur?
4. What soil would you expect to have the highest field capacity?
5. The potential energy generated by the attractive forces between water molecules and soil particles isa. osmotic potential.b. water potential.c. soil potential.d. matric potential.Answer: d
6. Root cell adaptation to prevent the cell solutes from equilibrating with the water in the soil includeI. semipermeable membranes that prevent the transfer of large molecules.II. cell membranes that can prevent the transfer of water out of the cell.III. cell membranes that can actively transport ions across the gradient.