Exam 29: Resource Acquisition,nutrition,and Transport in Vascular Plants

Arrange the following in the correct sequence of steps in nitrogen fixation. i.Nitrogen gas ii.Nitrite ion iii.Ammonia iv.Nitrate ion

Atmospheric nitrogen can be fixed by nitrogen-fixing bacteria.Arrange the following forms of nitrogen from the atmospheric N stage to the final form that enters the roots. 1)Ammonia 2)Nitrogen gas 3)Ammonium ion 4)Nitrite 5)Nitrate

Which of the following elemental ions plays a critical role in opening and closing of stomata?

The cuticle on the surface of epidermis of leaves is an adaptation for plants to conserve

You are most likely to see guttation in small plants when the

A corn (Zea mays)mutant is developed that is impaired in magnesium uptake.The most likely phenotypic expression would be

You are conducting an experiment on plant growth.You take a plant fresh from the soil that weighs 5 kg.Then you dry the plant overnight and determine the dry weight to be 1 kg.Of this dry weight,how much would you expect to be made up of organic molecules?

Which of the following soil minerals is most likely leached away during a hard rain?

A plant cell with a Ψ_S of -0.65 MPa maintains a constant volume when bathed in a solution that has a Ψ_S of -0.30 MPa and is in an open container.The cell has a

Carnivorous plants have evolved mechanisms that trap and digest small animals.The products of this digestion are used to supplement the plant's supply of

The general biology class was divided into two groups.The first group of students was given 5 red bean seeds and 100 mL distilled water,and the second group received 5 red bean seeds and 100 mL 5% salt solution.Both teams immersed seeds in their respective solvents at the same time and left them for 24 hours.What do you expect to observe in seeds after 24 hours,and why?

Typically,what percentage of a plant's fresh biomass is water?

Which of the following processes happens during photosynthesis in plants?

Essential elements are the elements that are required for a plant to

Stomata open when the flow of

Which of the following macronutrients plays a critical role on plant growth and crop yields?

Several tomato plants are growing in a small garden plot.If soil water potential were to drop significantly on a hot summer afternoon,which of the following would most likely occur?

If Ψ_P = 0.3 MPa and Ψ_S = -0.45 MPa,the resulting Ψ is

A young farmer purchases some land in a relatively arid area and is interested in earning a reasonable profit for many years.Which of the following strategies would best allow the farmer to achieve such a goal?

For this pair of items,choose the option that best describes their relationship. (a)The average size of particles that constitute silt (b)The average size of particles that constitute clay