Chapter 24: Fungi

Question 1

Fungi are _______.

Answer 1

Eukaryotes

Question 2

What are characteristics of fungi? (closely related to animals than plants)

Answer 2

• Chitin in their cell walls
• No photosynthetic pigments
• No chloroplasts
• Heterotrophic – they absorb carbon as a food source, they do not fix
  carbon to create glucose

Question 3

How can fungi reproduce?

Answer 3

asexual, sexual, can form mutualistic relationships with other species. can be a parasite

Question 4

Fungal cell structure:

Answer 4

• Cells have nucleus with chromosomes, DNA wrapped around histones. Their body tissue is haploid (n) – only one set of chromosomes
• Have membrane-bound organelles
• Have mitochondria
• No chloroplasts, no chlorophyll
• Have cellular pigments
• Not used for photosynthesis
• Protect against UV light
• Many fungal pigments are toxic
• Have cell walls with chitin and glucans
• Plasma membrane has ergosterol not cholesterol
• They are nonmotile

Question 5

What is chitin?

Answer 5

• complex polysaccharide
• Provides cellular strength
• Also found in arthropods