Prokaryotic cells
Lack a membrane bound nucleus and organelles
Example of a prokaryotic cell
E. coli
What are the folds in mitochondria called?
Cristae
What is a singular disc in a chloroplast organelle? (squished oval)
Thykaloid
What is the stack of discs in a chloroplast called?
Granoid
What is the aqueous fluid in a chloroplast called?
Stroma
What has a double membrane?
Mitochondria and chloroplasts
What is ideal for cells?
Large SA:Vol ratio
Which is bigger, a bacteria or a virus?
Bacteria
Eukaryotic cells
Possess membrane bound nucleus and organelles
Plasma membrane
All cells have it
Nucleolus
Ribosome production (not functional yet)
Ribosomes
Composed of ribosomal RNA (rRNA) and protein
Smooth ER
Stores calcium ions
Rough ER
Has transport mechanism, as vesicles bud off of it
Vesicles
Used for transport
Phagocytosis
Lysosomes breaking down food
Autophagy
Lysosomes breaking down damaged organelles
Mitochondria
Contains its own DNA and ribosomes, has two membranes and can self replicate
Peroxisome
Contains catalase to transfer hydrogen in substances to oxygen, which often creates hydrogen peroxide as a byproduct
What does the cytoskeleton do?
Plays a role in support, motility, and regulation of the cell
What is the cytoskeleton made up of?
Microtubules, microfilaments, and intermediate filaments
What is the centrosome?
Microtubule organizing center (MTOC)
What are examples of microtubules?
Flagella, centrioles, and cilia
Cilia
Many short, hair like extensions which assist with movement
Flagellum
One long hair like extension that assists with movement
Prokaryote size
70s=50s+30s
Eukaryote size
80s=60s+40s
Which is bigger, prokaryotes or eukaryotes?
Eukaryotes