cells intro
what type of cell has NO membrane bound organelles
prokaryote
this organelle is responsible for making proteins
extra points: what captures light in plants?
ribosom
extra: chloroplasts
the nucleus is responsible for
storing DNA
what is homeostasis?
Maintaining a comfortable and stable environment
what is isotonic
equal amounts of solute on inside and outside of cell
where is the DNA located in a eukaryote AND prokaryote?
eukaryote: in nucleus
prokaryote: in cytoplasm
responsible for holding all the organelles in place
cytoplasm
This is the organelle that regulates what enters and exits the cell
cell membrane
name two ways a cell maintains homeostasis
diffusion and osmosis
explain the amount of solutes in a hypotonic solution on the inside and outside
there are more solutes on the inside, causing water to go in
how do you calculate total magnification of a microscope?
Multiply the objective lens by 10X
this provides structure to the plant cell
cell wall
what process moves water from high to low concentraion?
Osmosis
Passive: no additional energy is required
Active: requires additional input of energy
where are the solutes on the hypertonic solution
outside the cell is greater
who are the three people to contribute to the cell theory?
Schwann, Shleiden, Virchow
mitochondria function?
Create ATP energy for the cell
why is the rough Endoplasmic reticulum considered rough?
It is covered in ribosomes
what is a solute, solvent, and solution?
Solute: what is being dissolved
Solvent: the liquid doing the dissolving
Solutions: solute + solvent
what are the three reasons water is important to cells
transportation, insulation, chemical reactions
what is a scientific theory?
Something that has been tested many times and has lots of supporting evidence
what does the golgi apparatus do?
It is responsible for packaging up and shipping out proteins to where they need to go
what is the function of a lysosome
gets rid of bad cells
what happens to a cell in hypertonic solution?
how is active transport different from diffusion
active is moving ion from low to high concentration and requires energy