UNITE EXAM Flashcards
Nucleus
The “brain” of the cell
Nucleolus
Produces the cells Ribosomes
Ribosomes
The creator of proteins in the cell
Rough Endoplasmic Reticulum (RER)
Creates proteins in the cell (contains ribosomes)
Smooth Endoplasmic Reticulum (RER)
Holds fats and oils
Mitochondria
Powerhouse of the cell, creates ATP (energy)
ATP
Adenosine Triphosphate (Energy) mostly used in active transport in the cell
Lysosomes
The digestive system of the cell, contains stomach acid enzymes in order to break down solid objects
Vacuoles
Water storage of cell
Golgi Apparatus
The shippers of the cell. Modifies and moves different materials to the inside and outside of the cell
Chloroplast
- Has the chemicals for photosynthesis
- Due to chlorophyll it is green, creating a green pigmentation on the things that it’s in.
- Located in plants
Cell Wall
Protect the cell membrane and provides support aswell
Cell Membrane
- Separates the inside of the cell from its environment
- What allows things into the cell such as water and salt
- Contains the phospholipid bilayer
Phospholipids
- Created from phosphorus and Lipids.
- Contains a hydrophobic (scared of water) and hydrophilic (Likes water)
Cytoskeleton
- An extra support to the cell
- More developed in animals
Centrioles
- Play a role in cell division
- Only in animal cells
Passive Transport
- Does not require energy
- Follows the flow of the concentration gradient (High to Low)
Concentration Gradient
The difference of concentration between the high and low concentration
Equilibrium
Balanced
Hypotonic
More water on the outside of the cell then the inside
Hypertonic
More water on the inside of the cell then the outside
Isotonic
The water on the inside and outside of the cell is equal
Carrier Protiens
They bind to larger molecules and shape them in order to diffuse through the cell membrane
Channel Protiens
Provides water filled pores for charged ions to pass through
Active Transport
- Requires energy (ATP)
- Goes against the concentration gradient
Endo Cytosis
- For substances the cell needs to take in
- Used for substances that are to big for passive or active transport
Exo Cytosis
- The expelling of something from the cell
- Used for substances that are to big for passive or active transport
Phagocytosis
The taking in of solids
The Janssen Brothers
- Invented the first microscope
- Made the compound microscope
Robert Hooke
Did the cork experiment with the microscope and figured out a cork had tiny chambers called “Cells”
Antoine Van Leeuven hoek
First person to observe the movement of single celled living organisms
Contrast
How well you can tell something apart in the cell
Cell staining
Using substances to make the parts of the cell more noticeable
Magnification
How many times larger and object is
Field of View
The field diameter of an image
Scale
A comparison between the size of a drawing compared to the size of an actual object
Electron Microscope
Uses a Beam
Transmission Electron Microscope (TEM)
Gives 2D Views
Confocal Laser Scanning Microscope (CLSM)
Gives 3D Views
Spontaneous Generation
The belief that living things can come out of non living things
Louis Pasteur
Disproved spontaneous generation
Cell theory
- All living organisms are composed of cells
- The cell is the basic unite of organisms
- Cells arise from pre existing cells
Open system
Matter and energy is exchanged with the environment
Prokaryotic
Is unicellular
Eukaryotic
Unicellular and Multicellular