1/53
Flashcards about Microparasites, Eukaryotes, and Fungi
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
Macroscopic fungi
Fungi visible to the naked eye, including mushrooms, puffballs, and gill fungi.
Microscopic fungi
Fungi only visible with magnification, including molds and yeasts.
Yeast cell
Round to oval shape and use asexual reproduction called budding
Hyphae
Long, threadlike cells found in filamentous fungi or molds
pseudohyphae
A chain of yeast cells.
Dimorphic Fungi
Fungi that can exist in either yeast or mold form, depending on growth conditions.
Heterotrophic
Acquire nutrients from a wide variety of substances and utilize fungi.
Saprophytes/Saprobes
Organisms that obtain substrates from dead plants and animals.
Mycelium
The woven, intertwining mass of hyphae that makes up the body or colony of a mold; appears cotton-like.
Septa
Cross walls that divide hyphae into segments.
Spores
Fungal reproductive bodies; often powdery in appearance.
Sporangiospores
Spores formed by successive cleavages within a sporangium.
Conidiospores (Conidia)
Free spores not enclosed by a spore-bearing sac.
Sexual spores (purpose)
The primary purpose is to introduce genetic variation.
Mucormycosis
A serious but rare fungal infection caused by a group of molds.
Histoplasmosis
Fungal infection causing symptoms that affect the lungs and respiratory tract.
Coccidioidomycosis (valley fever)
A fungal infection caused by a fungus that lives in dust and soil, particularly in the southwestern United States.
Candidiasis
A yeast infection caused by a yeast that is normal biota on human mucosal surfaces.
Protists
Any eukaryotic unicellular or colonial organism that lacks true tissues
Free-living species
Scavenge dead plant and animal debris.
Parasitic species
Live on the fluids of the host, such as plasma and digestive juices.
Pseudopods
Amoeboid motion, also known as sliding motion, involves false feet that serve as feeding structures
Flagella
Vary in number from one to several, with a whipping motion
Cilia
Distributed over the entire surface of the cell in characteristic patterns, ciliary motion
Protozoa life cycle step 1
Trophozoite, active, feeding stage
Protozoa life cycle step 2
Cell rounds up, loses motility
Protozoa life cycle step 3
Cyst wall breaks open
Protozoa life cycle step 4
Trophozoite is reactivated
Protozoa life cycle step 5
Mature cyst, dormant, resting stage
Mitosis
Protozoans reproduce via simple asexual methods, usually by what method?
Conjugation
The form of genetic exchange between two cells?
Parasitology
Study of protozoa and helminths
Parasite
Term used to denote protozoan and helminth pathogens
Trematodes
Flukes
Cestodes
tapeworms
definitive host
the host in which adulthood and mating occur
Intermediate host
Host in which larval development occurs
definitive host
Humans are the
Helminth
Multicellular(adults). Unicellular(ova,larva)
CELL WALL: Protozoa
None
CELL WALL: Fungi
Chitin or cellulose
CELL WALL: Algae
cellulose
CELL WALL: Helminth
None
CELL WALL: Human
None
NUTRITIONAL TYPE: Fungi
Heterotrophic
NUTRITIONAL TYPE: Algae
Autotrophic
MOTILITY: Fungi
Flagella (Gametes)
IMPORTANT STRUCTURE FOR IDENTIFICATION: Algae
chloroplast
IMPORTANT STRUCTURE FOR IDENTIFICATION: Fungi
Hpyhae/spores
Endosymbiotic
Cells that became trapped in larger cells
Lysosomes
are vesicles that contain digestive enzymes
Sporangiospores
Asexual spores contained in a sac-like head
Algae
Produces about 70% of the earth’s oxygen