BIOL 2051 Exam 3 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Why are red algae red? - CORRECT ANSWER red algae are reddish in color due to an
accessory pigment called phycoerythrin which masks the green of chlorophyll
What's a chlorophyte? - CORRECT ANSWER a type of green algae found in freshwater and
marine environements, known for containing chlorophyll a and b
Where do chlorophytes live? - CORRECT ANSWER fresh water, damp soil as symbionts in
lichens, or in snow
What 4 morphological traits, and two genetic datasets support the sister-taxa relationship of
charophytes and land plants (embryophytes)? - CORRECT ANSWER Rose-shaped\ complexes
for cellulose synthesis (others are linear)
Peroxisome enzymes (produced elsewhere stored for metabolism)
- Structure of flagellated sperm!
Formation of a phragmoplast
What are the big 4 unique traits of land plants - CORRECT ANSWER Alternation of
generations (with multicellular, dependent embryos)
- Walled spores produced in sporangia
- Multicellular gametangia (what-the-tangia?)
- Apical meristems
whats a cuticle - CORRECT ANSWER polyster and wax polymers- "seals in freshness!" OK-
reduces water loss
whats a secondary plant compound - CORRECT ANSWER Secondary compounds in land
plants are compounds that plants produce to protect themselves
What's a mycorrhizal fungus? - CORRECT ANSWER beneficial soil fungi that form a
symbiotic, "fungus-root" relationship with about 90% of land plants
QUESTIONS AND CORRECT ANSWERS
Why are red algae red? - CORRECT ANSWER red algae are reddish in color due to an
accessory pigment called phycoerythrin which masks the green of chlorophyll
What's a chlorophyte? - CORRECT ANSWER a type of green algae found in freshwater and
marine environements, known for containing chlorophyll a and b
Where do chlorophytes live? - CORRECT ANSWER fresh water, damp soil as symbionts in
lichens, or in snow
What 4 morphological traits, and two genetic datasets support the sister-taxa relationship of
charophytes and land plants (embryophytes)? - CORRECT ANSWER Rose-shaped\ complexes
for cellulose synthesis (others are linear)
Peroxisome enzymes (produced elsewhere stored for metabolism)
- Structure of flagellated sperm!
Formation of a phragmoplast
What are the big 4 unique traits of land plants - CORRECT ANSWER Alternation of
generations (with multicellular, dependent embryos)
- Walled spores produced in sporangia
- Multicellular gametangia (what-the-tangia?)
- Apical meristems
whats a cuticle - CORRECT ANSWER polyster and wax polymers- "seals in freshness!" OK-
reduces water loss
whats a secondary plant compound - CORRECT ANSWER Secondary compounds in land
plants are compounds that plants produce to protect themselves
What's a mycorrhizal fungus? - CORRECT ANSWER beneficial soil fungi that form a
symbiotic, "fungus-root" relationship with about 90% of land plants
