Chap 25-26 (Plant Diversity)

Which of the following is not a derived trait unique to land plants?

1. Apical meristems

2. Alternating generations that include a gametophyte and sporophyte stage

3. Apical meristems that occur in roots and shoots

4. An embryo that is multicellular and retained within the tissue of the female gametophyte

5. The ability to photosynthesize using organelles called chloroplasts

6. The ability to produce walled spores in specialized structures called sporangia

5. The ability to photosynthesize using organelles called chloroplasts

What’s the order of plant ancestores based on when they first appear in the fossil record? (oldest to most recent)

Red algae, green algae, bryophytes, seedless vascular plants, seed plants

Rhizome definition

A rootlike subterranean stem, commonly horizontal in position, that usually produces roots below and sends up shoots progressively from the upper surface

Xylem definition

A compound tissue in vascular plants that helps provide support and that conducts water and nutrients upward from the roots consisting of tracheids, vessels parenchyma cells, and woody fibers

Strobilia definition

Cone-like structures formed from groups of sporophylls

Phloem definition

The part of a vascular bundle consisting of sieve tubes, companion cels, parenchyma, and fibers and forming the food-conducting tissue of a plant

Lignin defintion

A recalcitrant, organic substance that, with cellulose, forms the chief part of woody tissue

Nonvascular plants examples

Mosses, liverworts, hornworts

Seedless vascular plant examples

Quillworts, ferns, horsetails

Seed vascular plants examples

Oak trees, pine trees, gymnosperms, angiosperms

Which of the following is never part of the seed of a land plant?

1. Embryo

2. Food supply

3. Eing

4. Rhyziod

5. Seed coat

4. Rhyziod