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Lab 4 Plant Diversity 1 Quiz
1. What is an apical meristem? (1pt)
Apical meristems are regions of rapidly dividing cells at the tips of roots and shoots.
These perform a similar function to stem cells in animals.
2. List 2 functions of xylem that allow vascular plants to grow taller? (1pt)
• Xylem transports water and minerals from the roots to the plant.
• Xylem provides the structural support that allows the plant to stand tall.
3. List the 2 of the 4 traits that land Plants share with Charophyceans, that cause
scientist to think Charophyceans and plants are closely related. (1 pts)
You needed to list 2 of the following traits.
• Rossette shaped cellulose synthesizing complexes
• Similar Perisome enzymes
• Similar structure of flagellated sperm
• Formation of phragmoplast during cell division
4. True or False: The sporophyte is the dominant life stage in a true moss (Bryophyte)
(1pt)
False. The dominant life stage in mosses and other nonvascular plants is the (haploid) gametophyte stage.
5. What are sori? (1pt)
Sori are clusters of sporangia on underside of sporophylls or spore bearing leaves.
6. What is the male gametangium called (1pt)?
The male gametangium is called the antheridium.
7. List the 4 of the 5 derived traits that land plants posses, but Charophyceans do not.
(2pts)
You needed to list 4 of the following traits.
• Apical meristems
• Alternation of generations
• Walled spores produced in sporangia
• Multicellular gametangia
• Multicellular dependent embryos
8. True or False: The sporophyte is the haploid stage of the plant life cycle. (1pt)
False. The sporophyte is the diploid stage of the plant life cycle.
9. Why do seedless plants require water to reproduce sexually? (1pt)
Seedless plants require water to reproduce sexually because their sperm need water
to be able to swim to the egg of the seedless plant.