Quiz 1 Flashcards
(23 cards)
Prokaryote
Cell with circular chromosomes, no membrane bound nucleus or organelles (bacteria, archea)
Eurkaryote
Cell with linear chromosomes, membrane bound organelles and nucleus (animals, plants, protists, fungi)
Unicellular
single celled organism which can be a eukaryote or prokaryote
Colonial Organism
group of uniceullar organisms clustered and working together
Complex Multicullular organism
contains many eukaryotic differentiated cells that work together
phlogeny
evolutionary history of a group of organisms
protists
eukaryotes that aren’t plants, animals or fungi
Plants
eukaryotic complex multcelullar organism with cell wall made of cellulose and cholroplasts. has shoots and roots
tissue
group of cells physically together that work together to perform functions. can contain distinct cell types connected through ecm
4 types of tissue in plants
epidermal, vascular, meristem, ground
ground tissue
photosynthesis in shoots, structure, storage
Meristem
growth cells
animal tissue types
connective, nervous, muscle and epithelial
Indirect cell adhesion
in plants, fungi and some protists
Middle Lamella
sticky goo that adheres the two cell walls together
Symplast
through plasmodesmata
Apoplast
through middle lamella and cell wall
Direct cell adhesion
directly link cell membranes of neighboring cells with proteins
ECM
cytoskeleton links integrins to extracellular proteins to collegin
tight junctions
seals sells together
Desmosomes
connects the cytoskeleton to cells
Gap junction
acts as channels between cells
What features to multicelluar eukaryotes need?
cell adhesion, cell to cell communication, body plan, regulate growth, homeostasis, regulation of gene expression
