Chap 4 -2 Flashcards
(16 cards)
What are external prokaryotic cell structures?
cell wall of peptidoglycan
capsule
pili (pilus, singular)
One + flagella
What are Eukaryotic cells?
larger 10-100um
complexity in compartmentalization
membrane bound regions - organelles
What are plasmids?
small circular DNA molecules
Organelle’s outer membrane allows the organelle to?
each have specialized function
which allows activities to occur simultaneously (cellular metabolism)
Domain Eukarya consists of?
Plantae
Animalia
Protista
Fungi
Which Eukaryotic structures are only found in plants?
cell wall
chloroplast
Centrioles are only found in what?
animals
The Nucleus separates what from what?
DNA from cytoplasm
What does the nucleus do?
protects and controls access
organizes and copies for cell division
Ribosomes consists of?
rRNA & proteins: 2 subunits
What is the Endomembrane system?
membranous organelles working together that manufacture, distribute, ship and or store cellular products (proteins and lipids)
What is the secretory pathway?
a series of steps a cell uses to move proteins out
What is the endoplasmic reticulum?
an extension of the nuclear envelope
extensive, two regions
What is rough endoplasmic reticulum?
flattened sacs studded with ribosomes that produce polypeptides
What is the function of rough endoplasmic reticulum?
to modify polypeptides for functioning as membrane proteins
What are secretory proteins?
Digestive enzymes, tears, hormones
