Flashcards in chapter 12 Deck (23):
what are some characteristics of Protozoa
classified by motility
what are habitat of Protozoa
live in water and soil
can live in extreme environments
what's the nutrition of Protozoa?
feed on plant and animal debris
absorb food through CELL MEMBRANE
vacuoles --> digestion
what is heterotrophic
have to get food from the outside of body
what are the stages of Protozoa?
trophozoite and cysts
what is the trophozoite phase?
moitle, feeding stage
requires water and food
what is the cyst stage?
dormant stage --> when conditions are unfavorable
*Protozoa can flip between stages
Can Protozoa reproduce sexually or asexually or both?
asexual --> binary fission, budding, and schizogony
sexually --> conjugation
What is binary fission?
one cell divides into two new cells
what is budding?
protrusion off of parent cell
what is schizogony?
nucleus undergoes multiple divisions before cell divides
what is conjugation?
genetic exchange between 2 mating pairs that require CELL TO CELL CONTACT
What is classification of a Protozoa?
What are the characteristics of Algae?
Unicellular or multicellular
classified by pigment
what does photoautotrophic?
use light to make food.
what are the stucutes of algae needed to know?
thallus --> body
holdfast --> root
stripe --> stem
blade --> leaf
what is the habitat of Algae
aquatic environment --> soil and rocks
cool water often near surface
do Algae reproduce asexually or sexually?
both but mostly asexually by binary fission
how do you classify Algae?
how you classify brown algae?
Sub- K: Algae
what are things to know about phylum phaeophyta?
brown algae --> kelp
macroscopic --> 50 meters
found in costal water
used --> ice cream, tooth paste, and hand lotion
how do you classify red algae?
sub- K: algae