3-3 Vocab and 3-3 Fungi

3-3 Vocab

HYPHA

One of many branching, threadlike tubes that make up the body of a fungus.

Fruiting Body

The reproductive hypha of a fungus.

Budding

A form of asexual reproduction of yeast in which a new yeast cell grows out of the body of a parent.

Lichen

The combination of a fungus and either an alga or an autotrophic bacterium that live together in a mutualistic relationship.

3-3 Fungi

1) Describe how fungi range in size.

Range in size from unicellular yeast to muilticellular mushrooms bracket fungi

2) What are the three characteristics that most fungi share?

1. Eukaryotes2. Use spores to

reproduce3. Heterotrophs

3)Describe where fungi like to grow.

Warm, Moist places (foods, bathroom tiles, tree bark, forest floors)

4. How do fungi obtain food? List all 3 steps.

1.Grow Hyphae into food source2.Digestive chemicals ooze into food source3.These break down food into liquid that

are absorbed by hyphae

5) If you were a fungus, how would you eat a chocolate cake?

By sticking fingers into the cakeFingers would secrete digestive chemicalsFingers would then absorb the cake

6) Describe what spores are and how they help fungi reproduce.

They are tiny cells that can develop into a new organism if they land in a favorable area, they can form into new fungi.

7) Describe how fungi can reproduce asexually (most do this)

When there is adequate moisture and food, most fungi will reproduce asexually by growing fruiting bodies.

8) Describe how fungi can reproduce sexually.

-When growing conditions are unfavorable, the hyphae from 2 fungi grow together to exchange DNA. A fruiting body forms to make spores. These grow into genetically different fungi than the parents.

9) How are fungi classified?

1. based on the shape of their spore producing structure

2. ability to reproduce sexually.

10) List the 5 subheadings under Fungi and the Living World and briefly describe each.

1.Decomposers2.Food for people3.Some cause disease4.Some Fight disease5.Live in symbiosis

44 lb. Mushroom

11) Why are lichens considered to be “pioneer organisms”?

They are the first organisms to appear on bare rocks in an area after a volcano, fire, or rockslide has occurred.

12) What do lichens “do”?

Lichens break down rocks into soil in which other organisms can grow.