Unit 6 Flashcards
Fungi are classified based on how they….
The spore case
Mycelium
Mycelium is the vegetative part of a fungus, consisting of a mass of branching, thread-like hyphae.
Stolon
A stolon is a specialized type of horizontal above-ground shoot, a colonizing organ that arises from an axillary bud near the base of the plant.
Rhizoids
Rhizoids are simple hair-like protuberances that extend from the lower epidermal cells of bryophytes, Rhodophyta and pteridophytes. They are similar in structure and function to the root hairs of vascular land plants.
Hyphae
In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Yeasts are unicellular fungi that do not grow as hyphae.
What are some ecological benefits of Fungi?
Medicines, recycling, plant growth,biocontrol, crop disease, animal disease, food spoilage
What diseases can fungi cause?
Ring worm, athletes feet,
Why are yeasts so important?
In nature, yeast enzymes break down the complex carbon compounds of plant cell walls and animal tissues, feeding on the sugar produced in the process. In this way, yeast function as natural decomposers in the environment.
How can fungi reproduce?
The reproduction of fungi can be either sexual or asexual. Sexual reproduction, as with other organisms, involves the fusion of two nuclei when two sex cells unite. This joining produces spores that can grow into new organisms. However, the majority of fungi reproduce asexually.
How can fungi get their food/energy
They use photosynthesis
What are the general characteristics of Kingdom Protista?
Mostly unicellular, can be heterotrophic or autotrophic, most live in water, ALL ARE EUKARYOTIC
What are the 3 groups of protists? What are they based on?
Animal like, fungus like, plant like,
Animal like: obtain their own food, heterotrophs
Fungus like: heterotrophs, cell wall, spores
Plant like: autotrophs, mostly unicellular
What is a type of multicellular protists
Algae, slime molds
What are the ecological benefits of protists?
80% of our earths oxygen comes from algae
What diseases does protists cause?
Malaria, Chagas’ disease
What are the 2 types of kingdoms for bacteria?
Eubacteria and archaebacteria
Eubacteria: lives in ordinary environments
Archaebacteria: lives in extreme environments
How are bacteria classified?
Their shapes. (Look at pic on google)
Know how to label a bacteria cell
(Look on google)
How do bacteria reproduce?
Bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two (replicates).