Question

Review Questions | DATE INSTRUCTIONS: Complete Section A binder) Lab 7 - The Fungi: Molds and Yeasts 1. Identify the domain and kingdom for molds and yeasts. What makes them different from other in the Benson Lab Manual and answer the following review ave and submit all of your work, including these review questions, in your laboratory notebook (3-rin 2. What are the major differences between molds and yeast? 3. Differentiate between hyphae and mycelia. It may be useful to draw a sketch of each. 4. Summarize the five distinguishing characteristics of fungi.

Answer 1

1=molds belong to kingdom fungi and domain is eukaryote and yeast also belong to the same kingdom fungus and its domain is eukaryote

2=Both molds and yeast belong to the kingdom of Fungus, and are Eukaryotes

Molds are microorganisms which have a tendency to grow with help of multiple celled filaments called as hyphae, whereas yeast is a microscopic form of fungi having just a one cell.

The molds are long cells look like threads which comprise the structure of filamentous fungi, on the other yeasts are either round or oval in shape

There are 1500 types of yeasts and approx  400,000 types of mold

Yeast is a not a sporing species of fungi whereas mold is a sporing fungi.

mycelium is the vegetative part of the fungus. it is the network collection or bundle of hyphae in one single place. Unlike the hyphae, the mycelia can be visible to the naked eye in the form of mold on various surfaces including damp walls and spoiled food.

The mycelium is also part of the fungi’s anatomy that performs asexual reproduction. This is possible due to fragmentation where the process maintains the clonal population that is adapted to a particular niche. By virtue of asexual reproduction, this process permits more spreading compared to the other form of reproduction – sexual reproduction.
The mycelia are also involved and used for other human purposes. The mycelium, in the process called mycofiltration, acts as an organic filter for soil and water. Applications of this process are usually to prevent soil erosion caused by water runoff and into abandoned logging roads.

3=The mycelia and the hyphae are both important parts of fungi. both are building blocks of fungi.

Hyphae is long, individual pieces that comprise a mycelium. Hyphae are as strings and threadlike filaments. The hypha is the basic body plan of a fungus. It is comprised of one or more cells surrounded by a tubular cell wall.
Hyphae can be classified into categories by their cell division, by their cell wall and overall form, and by their refractive appearance. Hyphae by cell division can be further classified as septate (with septa), aseptate (without septa), and pseudohyphae. The septate and aseptate considered to be “true” hyphae.

In addition, hyphae classified by their cell walls are separated into three categories: generative, skeletal , and binding. Unformed hyphae are called yeast – a substance that is very useful and applicable in many industries and fields

4=cell walls are composed mainly of a carbohydrate called chitin

Fungi are achlorophyllous, which means they lack the chlorophyll pigments Fungi are therefore incapable of photosynthesis

The (carbohydrate) molecule used to store energy in fungi is glycogen.

Fungi are heterotrophs, which means that they obtain nutrients by absorption.

some fungi are saprobiontic and some are parasitic