Organelles 1
What part controls what goes in and out of a cell?
cell membrane
Where is genetic information found?
Nucleus
movement of molecules down/with the concentration gradient from high concentration to low concentration
Diffusion
What is the main difference between osmosis and diffusion?
Osmosis only occurs in water
What characteristic of the cell membrane lets some things in and blocks some things out?
semi-permeable / selective permeability
Which organelle produces proteins?
ribosomes
What part is the watery, jelly-like stuff that fills the cell and holds all organelles?
Cytoplasm
Movement of molecules from high concentration to low concentration with help of a protein
Facilitated diffusion?
Name the 3 types of passive transport
diffusion
osmosis
facilitated diffusion
The cell membrane has a hydrophilic _______ and hydrophobic _______.
head, tail
Which organelle packages, modifies, and ships out proteins?
Golgi body
Which organelle does photosynthesis?
Chloroplast
movement of water molecules down the concentration gradient from high concentration to low concentration
Osmosis
Name 2 differences between active and passive transport
1. Active moves against the gradient
2. Active goes from low concentration to high concentration
3. Active requires energy
What is the cell membrane made up of?
Phospholipid bilayer and proteins
What does the mitochondria do?
Make ATP (energy)
What kind of things does the vacuole store?
Water and nutrients
What type of transport is osmosis? Passive or active?
passive
What is endocytosis?
when a cell takes in (engulfs) materials
What type of cells have a cell membrane? animal, plant, or both?
Both
Which organelle transports proteins?
Rough Endoplasmic reticulum (ER)
What 3 things does the plant cells have that animal does not?
central vacuole, cell wall, chlorplast
If a freshwater plant was placed in a solution with saltwater, what would happen to the plant? (swell, shrink, stay the same) (hyper,hypo, iso)
Shrink; hypertonic
What is exocytosis?
When a cell expels materials
If you place a fish from the sea into a freshwater bowl at home - what would happen? (shrink, swell, stay the same) (hyper, hypo, iso)
Swell; hypo