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21 Cards in this Set

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What is the fundamental generalization in biology?
All living things are composed of Cells
What is the boundary of a cell?
Cell membrane
What are some examples of membrane organelles?
Golgi apparatus, ribosomes, mitochondria and lysosomes
What is the difference between eukaryotic and prokaryotic organisms?
Eukaryotic organisms are more complex and the DNA is found in the nucleus

Prokaryotic are simple cells, DNA floats in the middle of the cell.
What is an example of a prokaryotic organism?
bacteria and cyanobacteria
In what kind of organism does one cell become specialized to perform specific functions?
Mulicellular Organisms
What are the three parts of the cell theory?
1. All living things are composed of cells
2. Cell is basic unit of life
3. cells come from pre-existing cells
What are three things common to all cells?
1. Cell membrane
2. DNA
3. Ribosomes - where proteins are made.
How do Amoeba's move?
form cytoplasmic extensions called pseudopodia.
How do Euglena's move?
Flagellum
What are some examples of Protozoans?
Amoeba, Euglena, Paramecium, Stentor, Chlamydomanoas
How do Paramecium move?
Cilia
What are two examples of Ciliated protozoan.
Paramecium and Stentor
How does a stentor move?
Cilia
What is an example of unicellular green alga?
Chlamydomonas
How do Chlamydomonas move?
two short flagella
What are some examples of Metazoans?
onion cells, Elodea, Human epithelial cells, Hydra, planaria
What phylum is the hydra a member of ?
Cnidaria
What phylum does planaria belong in?
platyhelminthes (flatworms)
What is bilateral symmetry?
having similar right and left halves
What are some features of the planaria?
bilateral symmetry, a permanent, internal reproductive system, various layers and bundles of muscles, a branching, blind gut that reaches throughout the body, and excretory system composed of specialized "flame cells" and a simple nervous system with an enlarged brain in the front end.