Fungi

Question 1

Give the characteristics

Answer 1

• Fungi are eukaryotic organisms - they have a defined nucleus bound by a nuclear membrane

• They are heterotrophic as they lack chlorophyll

• Fungi are saprophytic - live off dead organic matter
• or parasitic - live off living organisms
• some are pathogens

• their walls are made up of chitin
• asexual reproduction

• The bodies of multicellular fungi are made up of threads called hyphae.

• All the hyphae together form a mycelium.

• The hyphae are often multinucleate (have many nuclei).

Question 2

They have three types of hyphae

What are they

Answer 2

• Sporangiophores which grow upright and hold the sporangia above the substrate.

• Stolons that grow along the substrate (bread), giving rise to new hyphae.( grow horizontally)

• Rhizoids that penetrate the substrate and act as “roots”.
The walls of the hyphae are strengthened by a polysaccharide known as fungal-chitin.

Question 3

How do the reproduce

Answer 3

They reproduce asexually. They have sporangia which produces spores for asexual reproduction

Question 4

What happens below and above the stolon

Answer 4

Below stolon- nutrition

Above stolon -reproduction