Chapter 4 Flashcards
Mycoses
Fungal Infections
Heterotrophic
Nutrients are acquired from a variety of organic materials. Those materials are called substrates.
Hyphae
Long, thread-like cells found in the bodies of filamentous fungi or mold
Saprobes
Substrates obtained through dead plants and animals in soil or aquatic habitats.
Parasite
Substrates obtained off of living hosts.
The cytoplasm of protazoan cells are divided into what 2 parts?
Ectoplasm- Clear outer layer
Endoplasm- Granular inner region.
Functions of ectoplasm
Locamotion, Feeding, Protection
Functions of endoplasm
Houses the nucleus, mitochondria, food, and contractile vacuoles.
Name the 3 ways in which a protazoa can move?
Pseudopods, Flagella, or Cillia
Trophozoite
Is the vegetative, free-living form of a protozoal cell
Name the dormant stage of protazoa
Cyst
What is the most critical environmental condition for protozoan survival?
Moisture
What is the method of motility for Sarcodina?
Pseudopods
What is the method of motility for Ciliophora?
Cilia
What is the method of motility for Mastigophora?
Flagella
What is the method of motility for Sporozoa?
Gliding Motility
Name the two major groups of parasitic helminths.
Flatworms and Roundworms (nematodes)
Flatworms are subdivided into what 2 groups?
Cestodes & Trematodes
Which helminths are tapeworms
Cestodes
Is the pinworm a flatworm or roundworm?
Roundworm
What are the roles of vegetative hyphae (mycelia)
Responsible for visible growth of fungus
Give rise to structures that produce spores
Penetrates substrate to obtain nutrients
Yeast cells that remain in a chain of attached buds are called ______?
Pseudohypha
What helps regulate osmotic pressure in protozoa that live in a hypotonic environment?
Contractile Vacuole
Proteins are modified in which organelle?
Golgi Apparatus
Free spores not enclosed by a sac are called ____?
Conidiospores
Fungi that can exist in a yeast form or can form hyphae are called _____?
dimorphic
