Unit 2: Cell Structure & Function Flashcards
Topic 1,2,10, & 11
Cells
Cell
basic structural and functional units of every organism
all cells are bound by plasma membrane & contain cytosol, chromosomes, and ribosomes
Topic 1,2,10, & 11
Prokaryotes
Cell
before nucleus, DNA is in the nucleoid region
smaller in size
Bacteria and Archaea domains
Topic 1,2,10, & 11
Eukaryotes
Cell
true nucleus, DNA is in nucleus
membrane bound organelles
linear DNA
Protists, fungi, animals, and plant domains
Topic 1,2,10, & 11
Organelles
Organelle
cell structures
Topic 1,2,10, & 11
Endomembrane Organelles
Organelle
nuclear envelope, endoplasmic reticulum, golgi complex, lysosomes, vesicles/vacuoles, and plasma membrane
Topic 1,2,10, & 11
Energy Organelles
Organelle
mitochondria and choloplast
Topic 1,2,10, & 11
Compartmentalization
Organelle
allows for different metabolic reactions to occur
increases surface area
prevents interfering reactions
Topic 1,2,10, & 11
Nucleus
Organelle
contains chromosomes (genetic information) & nucleolus
enclosed by nuclear envelope
has pores
pores - regulate entry/exit of materials
Topic 1,2,10, & 11
Ribosomes
Organelle
comprised of RNA and protein
function is to synthesize proteins
found in cytosol or bound to endoplasmic reticulum/nuclear envelope
Topic 1,2,10, & 11
Endoplasmic Reticulum
Organelle
network of membranous sacs and tubes
synthesizes membranes
compartmentalize cell to keep proteins separate from free ribosomes
Rough ER - contain ribosomes
Smooth ER - symthesizes lipids, metabolizes carbohydrates, & detoxifies cell