Question

17. Describe the relationship between the following terms: embryo, plumule, cotyledon, scutellum, endosperm, radicle, epicotyl, hypocotyl, root, and shoot.

18. What are characteristics of monocots and dicots?

12. How are a conifer seed and flowering plant seed different?

13. Describe the following types of flowers: perfect, imperfect, complete, incomplete, regular,

irregular.

14. Describe the flower characteristics: sepal, receptacle, petal, stamen, anther, filament, carpel,

pistil, stigma, style, ovary, ovule, seed.

10. Describe the characteristics of, and relationship between, the following: Gymnosperms,

Angiosperms, Coniferophyta, Ginkgophyta, Cycadophyta, Gnetophyta, Anthophyta, Monocots, Eudicots (Dicots).

8. What is the evolutionary importance of pollen grains?

6. Describe the characteristics of, and relationship between, the following: Bryophytes,

Bryophyta, Hepatophyta, Anthocerophyta, Lycophyta, Pterophyta, vascular, avascular, gametophyte dominant, sporophyte dominant.

please answer those questions as many as you can

Answer 1

17.

The seed coat encloses the embryo and its food suply fromed from integuments of ovule. Seed coat protects the seed from abrasive damage. The suspensor holds up the proembryo, formed from cotyledon, causes the terminal cell to divide several times forming spherical proembryo. Suspensor transfers nutrients to embryo from parent plant and from endosperm, while the hypocotyls terminates in the radicle, an embryonic root. Epicotyl is a portion of embryonic axis above where cotyledons are attached, and plumule part of seed embryo that develops into shoots. The endosperm provides nourishment to developing embryo in angiosperm seeds, and cotyledons are a seed leaf of angiosperm embryo. Finally, the shoot apex produces cells that enable plant to grow longer as shoot ap exes are for lateral meristemic growth. Scutellum is a small shield-like structure which is a modified cotyledon in the embryo of a grass seed.

18.

Monocot: It has one cotyledon, floral parts in threes, parallel leaf veins, vascular bundles throughout stem's ground tissue. Its pollen grains have one pore or furrow.

Dicot: It has two cotyledons, floral parts in fours or fives, Net-like leaf veins, stem's vascular bundles arranged in a ring. Its pollen grains have three pores or furrows.