plant-like protists Flashcards
what are the plant like protists
- green algae
- red algae
- brown algae
- dinoflagellates
- diatoms
what are the species of green algae
- volvox
- desmids
what is the cellular composition of desmids
unicellular, can be colonial
do desmids have a cell wall
yes
what is the major component of desmid cell wall
cellulose
are desmids motile
no
how do plant- like protists store energy
starch
do desmids have a feeding structure?
No, use photosynthesis
what is a defining characteristic of desmids
2 semi cells, isthmus connecting the two
what is the cellular composition of volvox
colonial
do volvox have a cell wall, what is it made of
yes, glycoproteins (extracellular matrix)
are volvox motile? what do they use?
Yes, flagella
what is a defining characteristic of volvox
- contain somatic cells, responsible for photo synth and locomotion, and sexual cells
- contain ECM
what is a multicellular green algae
seeweed
which protists contibute to phytoplankton
- desmids
- volvox
- dinoflagellates
which of the protists are the closest relatives to land plants
green algae
what are characteristics of DInoflagellates (red algae)
- unicellular, photosynthetic
- flagellated
- reddish color
- foundation of food chain for coral reefs
- contribute to phytoplankton
what are the mutualistic dinoflagellates called
- zooxanthellae , live symbiotically within coral reefs: provide corals with food in the form of photosynthetic products, corals provide CO2 , access to light, protection
what is the cellular composition of diatoms
- unicellular, can be colonial
do diatoms have a cell wall? What is it composed of ?
yes, Silica
are desmids motile?
NO
how do diatoms store energy
oil and chrysolaminarin
do diatoms have a feeding structure
no, photosynthesis
what are defining traits of diatoms
- Crystallin cell wall
- brown color
