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26 Cards in this Set

  • Front
  • Back
What are the 4 major protozoan groups studied?
What are the major characteristics for Protozoa?
-non photosynthectic
-unicellular (or acts independantly in colonies)
-no tissues
-digestion is intracellular (lysosome + food vacoule)
-many species of protozoans can encyst themselves within protective walls or sheaths secreted around themselves.
-cell bounded by plasma membrane
-some covered by pellicles
-some covered by test
-some covered by loricae
What is a pellicle?
-consists of the plasma membrane and modified outer regions of the cytoplasm
-vary in thickness- from thin and flexible to thick and firm
What is a test?
-an external skeleton of gelatinous or cellulose material or of inorganic calcareous or siliceous material
What is loricae?
-a loose outer-covering which they can move around in.
How do protozoans move?
-protoplasmic streaming
What are myofibrils?
-contractile cells which allow them to contract their bodies or stalks quickly
How do protz feed?
-lysosomes secrete hydrolytic enzymes to food vacoule, digestion is intracellular
What is the contractile vacuole?
-the main organelle for osmoregularity(ie: water and salt balance)
How is circulation and transport or food and other substances accomplished within a protozoan?
-Cytoplasmic streaming and Diffusion
What is a multinucleate syncytium?
-when protozoans undergo repeated nuclear divisions without any cytoplasmic division.
What are spores?
-the result of the multinucleate syncytium eventually dividing.
-that dividing process is called schizogony
What is syngamy?
-the fusion of haploid gametes in sexual reproduction to form a diploid zygote
What are isogametes?
-gametes of identical size and form
What are anisogametes?
-term used to refer to gametes of different size
What are/is oogamy?
-special case of anisogamy
-one gamete is small and flagellated, the other is large and can't move
What are/is Conjugation?
-sexual reproduction by means of a protopasmic bridge
-exchanges nuclei through the bridge
What are/is autogamy?
-2 nuclei in the same individual fuse to produce a zygote which divides meiotically to produce new individuals
Draw and label Amoeba proteus.
Did you get:
-contractile vacuole
-food vacuole
Draw and label:
Did you get:
Draw and label Euglena.
Did you get:
-paramylon body?
-both flagella?
-contractile vacuole?
Draw and label:
Did you get:
-food vacuole
-contractile vacuole
Draw and label Paramecium caudatum.
Did you get:
-basic shape?(like a shoe)
-contractile vacuole
-food vacuole
-oral groove
-buccal cavity
Draw and label:
Did you get:
-contractile vacuole
-adoral zone of membranelles
-peristomal area
Draw and label the Pellicle of Paramecium.
Did you get:
-alveolar space
Do paramecia like light/dark? Hot/cold?
-it likes the happy medium in both cases