Lab 5 Flashcards
what are the modes of nutrition for protist
- phototrophic
- heterotrophic
- mixotrophic
primary production
amount of energy stored by photoautotrophs
what are phototrophic organisms called
algae
what are heterotrophic organisms called
protozoa
phagocytosis
uptake of large particles or entire organisms by pinching inward of plasma membrane
mixotrophic
organism is capable of ingestion and photosynthesis
what are the three common modes of transportation
- cilia
- flagella
- pseudopodia
cilia
- microscopic hair like projections
- extend from surface of cell
- rhythmical motion
- act in unison to bring motion
flagella
- long, thread like appendages
- found in pairs or singly
pseudopodia
- temporary projections of the cytoplasm
- used to move or engulf food
taxonomic group of euglena
Euglenozoa
taxonomic group of paramecium
ciliates
what are the two taxonomic groups that can have various organism
dinoflagellates and diatoms
taxonomic group of Amoeba
Amoebozoa
taxonomic group of Oscillatoria
blue-green algae
taxonomic group of spirogyra
green algae
what is euglenas mode of locomotion
flagella
are euglena more tolerant to an increase of decrease in salinity
increase
do euglena have anterior and posterior ends?
yes
what is the mode of nutrition for euglena
mixotrophs
what is the distinctive color of euglena
green
what is one way to slow down ciliates so they can be observed
prepare a wet mount of the ciliates with yeast that has been stained
- slow down to feed on yeast
- use congo red stain
congo red
- pH indicator
- paramecium’s food vacuoles change color as pH changes during digestion of yeast
- red= above 5.2
- blue/purple= below 3
do paramecium have anterior and posterior ends
yes
do the paramecium move fast or slow
move fast with cilia
mode of nutrition for paramecium
heterotrophic
what is the distinctive shape of paramecium
oval with pointed/sharp end
what is when dinoflagellates “bloom”
reproduce very rapidly and cause water to appear red
- red tides (harmful to other organisms)
what type of cell wall do dinoflagellates have
cellulose
what makes up the cell wall in the dinoflagellates
cellulose plates and perpendicular grooves
what is the structure of diatoms
enclosed by cell wall made of silica
- cell wall have two valves
what are the possible shapes of diatoms
elongated
boat shaped
bilaterally symmetrical
radially symmetrical
why are diatoms important
produce carbohydrates and oxygen
what is the body of the amoeba
unicellular
no fixed body shape
no hard outer covering
how do amoeba move
fast and smooth
how do amoeba capture food
pseudopodia
what are the main components of blue-green algae
unicellular
filamentous
primarily freshwater
how do Oscillatoria move
slow oscillating motions the filaments generate
how do Oscillatoria reproduce
fragmentation
- able to break off and then re-grow
what are the basis of structure of green algae
unicellular
colonial
filamentous
multicellular
primarily freshwater
what do green algae group have that often associate them with being related to plants
presence of chlorophyll a and b
cellulosic cell wall
