Plant Form and Physiology Part 1

The main vegetative parts of plants include

roots, stems, and leaves

What is NOT a function of plant roots

produce energy that the plant can use to carry out metabolism

The point at which one or more leaves attach to the stem of a plant is a

node

Internodes of plants are

located on the stems

What is NOT a function of plant stems

absorption of water from soil

The opening and closing of a plant's stomata is regulated by the flow of ____________ ions

potassium

The type of plant cell that provides support without interfering with growth and is familiar as the "strings in celery" is a

collenchyma cell

The type of plant cell that provides rigid support and is dead at maturity is a

sclerenchyma cell

The ________ transport(s) water and dissolved minerals from the roots of the plant to the shoots of the plant.

xylem

The main phloem-conducting cells are

sieve tube elements

The conducting cells of the xylem are called

tracheids and vessel elements.

A waxy layer secreted by the epidermal cells of a plant is the

cuticle.

The pores through which leaves exchange gases with the atmosphere are

stomata

The part of a plant that is the stalk-like part of a leaf is the

petiole.

Compound leaves are defined as being divided into

leaflets.

Stems that grow underground and produce roots and new shoots are

rhizomes

The primary organ of photosynthesis in a plant is the

leaf

The root cap

-secretes a lubricant for the growing root
-protects the meristem from abrasion
-is located at the tip of the root
-plats a role in sensing gravity

Which best describes a compound leaf?

multiple leaflets attached to a single petiole

The innermost layer of the cortex of a plant root is the

endodermis

Carbon dioxide enters a plant from the atmosphere through pores called

stomata

If a plant exhibits determinate growth, the plant

stops growing when the plant reaches its mature size.

The source of a plant's new cells is a type of plant tissue called its

meristem

The tissue that produces cells to thicken a root or stem is the

lateral meristem

The secondary xylem and phloem are produced by the

vascular cambium