23.1

A seed plant is held in the ground by its

• stems.

• roots.

• leaves.

• epidermis.

Ground tissue is found in a plant's

• stems only.

• stems and leaves only.

• roots and stems only.

• roots, stems, and leaves.

In most plants, which organs are adapted to capture sunlight for photosynthesis?

• roots

• stems

• leaves

• flowers

In angiosperms, xylem consists of tracheids and

• sieve tube elements.

• companion cells.

• vessel elements.

• parenchyma.

If some of the xylem of a young oak tree were destroyed, it would most likely interfere with the tree's ability to

• conduct sugars to the roots.

• absorb sunlight.

• absorb nutrients from the soil.

• conduct water to the leaves.

Look at Figure 23-1. How would damage to structure B affect structure A?

• The organelles in structure A would die.

• Structure A would not be able to transport water.

• Structure A would develop nuclei.

• The openings in the ends of structure A would close.

Vascular tissue in plants consists of

• meristems.

• xylem and phloem.

• parenchyma and collenchyma.

• epidermis.

The outer covering of a plant consists of

• ground tissue.

• vascular tissue.

• dermal tissue.

• meristematic tissue.

To observe mitosis, which of the following should a student examine under a compound microscope?

• epidermis of a leaf

• tip of a shoot

• xylem from a tree trunk

• phloem from the stem of a plant

Which of the following are areas of unspecialized cells in which mitosis produces new cells that are ready for differentiation?

• parenchyma and collenchyma

• meristems

• xylem and phloem

• epidermis