Exam 36: Transport in Vascular Plants

A water molecule could move all the way through a plant from soil to root to leaf to air and pass through a living cell only once. This living cell would be a part of which structure?

As a biologist, it is your job to look for plants that have evolved structures with a selective advantage in dry, hot conditions. Which of the following adaptations would be least likely to meet your objective?

The opening of stomata is thought to involve

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

The amount and direction of movement of water in plants can always be predicted by measuring which of the following?

Which of the following is not a function of the plasma membrane proton pump?

Water rises in plants primarily by the cohesion-tension model. Which of the following is not True about this model?

Phloem transport is described as being from source to sink. Which of the following would most accurately complete this statement about phloem transport as applied to most plants in the late spring? Phloem transports __________ from the __________ source to the __________ sink.

Water flows into the source end of a sieve tube because

Which of the following is not part of the transpiration-cohesion-tension mechanism for the ascent of xylem sap?

Most angiosperms have alternate phyllotaxy. What allows each leaf to get the maximum exposure to light and reduces shading of lower leaves?

Phloem transport of sucrose can be described as going from "source to sink." Which of the following would not normally function as a sink?

The earliest land plants were nonvascular plants that grew leafless photosynthetic shoots above the shallow freshwater in which they lived.

Which of the following does not affect self-shading?

Trace the uptake of water and minerals from root hairs to the vessels in a root, following a symplastic route and an apoplastic route. Label the routes.

Water potential is generally most negative in which of the following parts of a plant?

Which structure or compartment is not part of the plant's apoplast?

Which of the following would be least likely to affect osmosis in plants?

Which of the following statements about transport in plants is False?

Active transport would be least important in the normal functioning of which of the following plant tissue types?