Nursery-Landscape Junior Area 18-19

The _ is the single layer of cells or skin of the leaf.

• blad

• epidermis

• guard cells

• petiole

The _ are the special cells in the leaf skin that open and close a small space or pore on the underside of the leaf.

• epidermis

• guard cells

• petioles

• veins

The evaporation of water through plant leaves and stems is known as _.

• germination

• photosynthesis

• respiration

• transpiration

Food-making cells that contain _ are located in the center of the leaf.

• chloroplasts

• guard cells

• guttation

• stoma

What gas is a reactant (left side of the arrow) in the process of photosynthesis?

• CO

• CO2

• H

• O

In the process of _, plants consume oxygen and give off carbon dioxide.

• germination

• photosynthesis

• respiration

• transpiration

The period of the plant's life cycle, where the plant enters a phase of slowed or inactive growth is known as _.

• dormancy

• hardening-off

• hybrid

• propagation

A gray-white material of volcanic origin that expands when it is heated.

• Peat Moss

• Perlite

• Sphagnum Moss

• Vermiculite

Partially decomposed vegetation that has been preserved underwater. Collected from marshes, bogs, or swamps. Has a high capacity for holding water.

• Peat Moss

• Perlite

• Sphagnum Moss

• Vermiculite

The dehydrated remains of acid bog plants. Is relatively light weight.

• Peat Moss

• Perlite

• Sphagnum Moss

• Vermiculite