Please enable JavaScript.
Coggle requires JavaScript to display documents.
Chapter 11 A- the kingdom protista (11.2 protozoan classification (members…
Chapter 11 A- the kingdom protista
the protozoans - first animals
11.1 General Characteristics
usually motile (able to move)
extremely fast or quick movements
most are found in water
the majority of the rest are found in dirt
some have pigment called eyespots that can detect light intensity and either move toward or away from it
during harsh environments many protozoans survive by creating a cyst
while the cyst is being formed the metabolic rate is slowed and a hard covering is formed around the protozoan
11.2 protozoan classification
members of the phylum sarcodina are characterized by their lack of standard body type
ectoplasm is the outer portion of the cell membraine
pellicle, a firm yet flexible protein-rich covering that is outside the cell membrane.
macronucleus appears to be multiple copies of the genetic material of the cell.
micronucleus functions during the exchange of genetic information during sexual reproduction.
trichocysts, which are tiny organelles under the pellicle, discharge stiff filaments into the water.
Paramecia also reproduce by a type of sexual reproduction called conjuga- tion
the members of the phylum Sporozoa are unique among protozoans since, as adults, they do not have pseudopodia, cilia, flagella, or any other special structures for locomotion.
The phylum Zoomastigina consists of the zooflagellates, protozoans that propel themselves by means of one or more flagella.