| Plants (General) |
| #1 |
Are plants eukaryotic or prokaryotic? |
Eukaryotic (membrane bound organelles and nucleus) |
| #2 |
What is the term to describe the life cycle of plants, which alternates between a haploid and diploid generation? |
Alternation of Generations |
| #3 |
What were the advantages of plants that colonized the land? |
1) More direct sunlight 2) less competition and predation (at the time) |
| #4 |
What plant groups that we've studied are still dependent on water for reproduction? |
Algae, moss and ferns |
| #5 |
Name 3 of five structures that land plants developed to deal with the challenges of life on land. |
Cuticle, Vascular tissue, seed coat, pollen grain, flowers/fruits, |
| Structure and Function 1 |
| #1 |
What is the function of xylem? |
To transport water AND nutrients |
| #2 |
What is the function of the cuticle? |
To prevent water loss |
| #3 |
What are the rhizoids of moss responsible for? |
Anchoring the moss to the surface |
| #4 |
Why are many algae "leaves" only 2 cells thick? |
Because algae lack vascular tissue, they rely on contact with water to get water, nutrients and to get rid of waste. |
| #5 |
What are different forms of chlorophylls and accessory pigments for? |
Structures that capture the energy of light, in many different wavelengths depending on the needs of the plant. |
| Structure and Function 2 |
| #1 |
True or False. Ferns have true roots, stems and leaves. |
True. Since ferns have vascular tissue, unlike moss and algae. |
| #2 |
Name the 2 plant groups which produce pollen grains |
Gymnosperms and Angiosperms |
| #3 |
What does the phloem transport, and which direction(s) does it transport? |
Sugars (products of photosynthesis). Up and down to whichever part of the plant needs it. |
| #4 |
Name 3 ways that we can tell a monocotyledon from a dicotyledon. |
Leaves, roots, stems, flowers, and growth |
| #5 |
Name the gametophyte structures in gymnosperms and angiosperms |
Ovules and pollen grains |
| Reproduction 1 |
| #1 |
Is the spore haploid or diploid? |
Haploid |
| #2 |
Is the green part of the moss gametophyte or sporophyte? |
Gametophyte |
| #3 |
The process that produces haploid spores from a diploid sporophyte is called ________. |
Meiosis |
| #4 |
Name the plant groups we have studied that have swimming gametes |
Algae, moss, and ferns |
| #5 |
Explain why the cotyledon of flowering plants are triploid, while the true leaves are diploid. (in detail!) |
The cotyledon comes from the endosperm (3N), which is created from fusing a sperm cell (N) with two polar nuclei (N and N).. This makes 3 nuclei in all, for a triploid structure. The true leaves are derived from the embryo, which is formed from the fusion of egg and sperm (2N). |
