lu4 virus

Question 1

1. function

Question 2

2. structure

Question 3

3. cell wall

Answer 3

• Major carbohydrates are chitin and beta-glucans (cellulose in some).
• Fungal specific organelles involved in cell wall growth.

Question 3

4. cell membrane

Question 4

6 virus general characters

Answer 4

1) body plan
- septate hypha
- coenocytic hypha
- growth of a hypha from a spore
2) nutrition
- most fungi are saprophytic (feeds on decomposing plant/animals)
- some parasitic and pathogegnic
- release extracellular enzymes: break substrate into smaller molecules for cell absorption (hair, cellulose, oil, latex)
3) nuclear status
- eukaryotic; uni, bi-, multinucleate
- haploid, diploid, homo, heterokaryotic
- undergoes mitosis - intranuclear (except slime molds); nuclear membrane doesn’t breakdown during mitosis
4) organelles
- typical organelles in eukaryote (mitochondria, ER, vacuoles, microbodies, microtubules, golgi)
- fungal specific organelles (associated with cell wall synthesis)
5) cell wall
- major carbohydrates are chitin and beta-glucans (cellulose in some).
- fungal specific organelles involved in cell wall growth.
6) reproductive structures
- two forms: 1- asexual and sexual reproductive structures/spore

Question 4

5. plasma membrane