Exam 9: Water in Plants

The pressure required to prevent osmosis from taking place is referred to as:

Hydathodes are involved directly in which of the following?

The force created by imbibition of water by wooden structures can be used to split stones.

A differentially permeable membrane is one that permits anything up to the size of large molecules to pass through.

If the concentration of solutes outside the plant cell is greater than the concentration on the inside, water will

When starch and cellulose molecules are exposed to water, they develop electrical charges and form ________.

Osmosis is a special kind of diffusion in which water molecules

Organic molecules produced in photosynthesis are mainly transported in the form of ________.

Guttation involves loss of water in liquid form from a leaf.

The direction of movement of food molecules in plants is ________.

Molecules that, due to their symmetry, have slightly different electric charges at each end are said to be

The early scientist who suggested that cells surrounding xylem vessels perform a pumping action that propels water through a plant was

Some sort of physiological pump is believed to be involved in active transport.

When a solute is dissolved in water, the ________ of the water is lowered.

Water and solute molecules never have to enter a cell because they can travel from the epidermis to the root xylem by moving through the cell walls and spaces between cell walls

Plants that have their stomata elevated above the surface include

Pressure sufficient to prevent the rise of fluid in an osmometer tube, when applied to the top of the tube, is called