7Th Gr Science-From Bacteria To Plants Ch 5 Sec 2

Front 1

Gymnosperm

Back 1

A seed plant that produces seeds that are naked-not enclosed by any protective covering. Although a few are shrubs or vines, most are trees. Four groups: 1) cycads 2) ginkgo 3) gnetophytes 4) conifers.

Front 2

Cone

Back 2

The reproductive structure of a gymnosperm.

Front 3

Pollen

Back 3

Tiny particles produced by plants that contain the microscopic cells that later become sperm cells.

Front 4

Ovule

Back 4

A structure that contains an egg cell. After fertilization occurs, the ovule develops into a seed.

Front 5

Pollination

Back 5

The transfer of pollen from a male reproductive structure to a female reproductive structure.

Front 6

Use of Conifers

Back 6

Conifers are used to build homes, to make rayon fibers in clothes, to make cellophane wrappers used on some foods, to make turpentine, and to make rosin.