Cell Study Guide Flashcards
2 differences between eukaryotic and prokaryotic cells
Prokaryotic cells don’t have a nucleus
Eukaryotic cells are multicellular organisms
Which 3 organelles are only found in plant cells
Chloroplast
Cell wall
Central vacuole
What are 4 structure found in all cells ?
DNA
Cell membrane
Cytoplasm
Ribosome
What are the 2 functions of the nucleus
Store DNA
Control/regulate the actives of the cell
What is the difference between the Smooth ER and Rough Endoplasmic Reticulum?
RER-Helps assemble proteins
SER-Synthenizes lipids / steriods
What are the functions of the Cytoplasm
To hold the components of the cell and protect them from damage
Why is the cell membrane considered “selectively permeable “?
Because it only allows specific molecules to pass; that can diffuse across the Phospholipid Bilayer, but others can’t
What are 3 types of passive transports
Osmosis
Simple diffusion
Facilitated Diffusion
What is Osmosis and what are Aquaporins?
Water diffusing across the cell membrane
Are water “channel protein “
How is facilitated diffusion different from simple diffusion?
Needs assistance of a protein to move across
Molecule diffuse unassisted
Difference between Active and passive Transport
It requires ATP energy
What are the 3 parts of the cell theory
- All living things are made of cells
- Cells are basic structures and functions of living things
- All cells come from preexisting cells
What is phagocytosis?
The process by which certain living cells called phagocytes ingest or engulf other cells or particles.
What is pinocytosis?
The process of taking up of liquids from the environment
What types of cells have a cell membrane?
Both, plant and animal
Eukaryotic and prokaryotic
