Micro bio test #3

The study of Fungi is called
Fungi are Chemoheterotrphs
Fungi are sapropytic which means
living off of dead or decaying organic matter
Fungi are a non-photosynthetic orgasnism
Live in terrestrial habitats but there are aquatic individuals
Basic Structures and terms
Eukaryote cell
Cell wall made of chitin (N-acetylgucosamine monomers)
Strict aerobe (fermenters)
Thallus or Body made up of what
Made up of long filaments of cells called hyphae (mycelium)
Two types of hyphae
Vegetative- the nutritive hyphae
Aerial-produces the reproductive structures
Non-Filamentous Yeast
Unicellular(look like bacteria when growing on agar)
Much bigger under scope often seen budding
Dimorphic Fungi
Under circumstances changes from yeast-like to producing pseudohyphae (daughter cells that fail to release from the mother cell)
Representative divisions
Differentiated by how they sexually reprouce
Sexual spores in a large cell ex. Mold-like Zygospores
Sexual spores produced in a enlongated sac. EX. Truffles (ascospores
Sexual Spores produced by specialized cells called basidium ex common shrooms. and yeasts Basidiospores
Sexual reproduction currently unknown and no sexually produced spores are reconized
Fungi can also reproduce
Asexually cell division by (mitosis)
Budding and fission (yeast)
a typical form of mitosis, cells that divide unevenly-budding or evenly-fission
Asexual spores
Produced by the aerial hyphae of one organism
Hyphae break off and produce clones
Asexual reproduction
Germination–>Mycelium–>Spore-producing structure–>spores
Fungal diseases are called
Mycoses, they are often chronic and difficult to treat, spores make inhalation the most popular transmission route, produce antibiotics
Economically important fungi
Are exploited by industries for food, pulp, and pesticides, responsible for destruction of forestry, fruit, veggies
Protozoa are
Microscopic unicellular animals that inhabit aquatic and soil environments, and are EU cells that lack cell wall
True or False Protozoa can ingest food particles and move freely about.
T/F Under favorable conditions, protozoa exist as active forms called trophozites
Protozoa species transform in protective bodies called…
Flagellated eukaryotes
Lack mitochondria(thus cant produce atp) Strict fermenter!
Associated with intestinal tract of animals
Move by pseudopodia
Some have motile sexual stage
most develop cysts
possess macro and micro nucleus
motility absent in most except male sex cells
life cycles are complex
in addition to trophozoite stage also
include sporozoite stage
Categories: Microbiology