Fungi

Question 1

5 major groups of fungi

Answer 1

Chytrids, Zygomycetes, Glomeromycetes, Ascomycetes,Basidiomycetes

Question 2

What are hyphae?

Answer 2

A network of tiny filaments (like roots)

Question 3

What are mycellium?

Answer 3

A mass of hyphae

Question 4

Why would an animal lacking any body cavities tend to be small or flat?

Answer 4

. Animals without body cavities lack an internal transport system. Therefore, they rely on diffusion across their outer surface to acquire nutrients and/or eliminate waste. Being flat increases the surface area for exchange, and being means the surface area to volume ratio is appropriate for efficient exchange.

Question 5

How do sponges feed?

Answer 5

1. water enters to pores
2. The flagella of choanocytes draw water through their collars, which trap food particles. The particles are engulfed by phagocytosis and digested, either by choanocytes or by amoebocytes

Question 6

How do fungi reproduce

Answer 6

Sexually and asexually.
Sexual: fusion of hyphae
Asexually: cell division, mitosis

Question 7

What is plasmogamy?

Answer 7

When the cytoplasm of the mycelium fuse together., during sexual reproduction

Question 8

What is the heterokaryotic stage?

Answer 8

After the cytoplasms fuse, when the haploid nuclei are coexisting (before they fuse)

Question 9

What is Karogamy?

Answer 9

The sexual reproduction stage of fungi when the nuclei fuse together. (forms diploid cells)

Question 10

What is mychorrhizae endosymbiosis?

Answer 10

Mutualistic symbiosis relationship
Where plants protect endophytes (type of fungi).
Endophytes release toxins to deter herbivores.