BIO UNIT 2 Section 1
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What does a Phospholipid contain.
- Phosphate, glycerol and is polar (Hydrophilic)Head
- Fatty acid tail (Hydrophobic) tail
What makes has regions that are hydrophilic and others hydrophobic and makes up the cell membrane.
O2, CO2, & N2 are ____ permeability in the cellular membrane.
Na+, Cl-, & K+ have ___ permeability in the cellular membrane.
H2O & Glycerol are _____ permeable in the cellular membrane.
______ of fatty acid tails lowers permeability in the cellular membrane.
_____ in cell membranes lowers fluidity
______ lower fluidity w/ reduced temp due to pack of fatty acid tails.
_______ tails increase permeabilty
_____ is when molecules tend to move spontaneously from high concentration to low concentration.
______ is the diffusion of water molecules.
When there is A LOT of a solute around a cell the cell is in a ______ _______ solution and will _____
Hyper Tonic, Shrivel
When there is TO LITTLE of a solute around a cell the cell is in a ______ _______ solution and will _____
Hypo Tonic, Burst
When there is A EQUAL amount of a solute around a cell the cell is in a ______ _______ solution and will _____
Iso Tonic, be ok
What are the 4 components of the cell membrane?
___ help large molecules and charged ions move through the cell membrane
What 2 proteins help with Facilitated Diffusion
- Carrier Proteins
- Channel Proteins
____ _____ is the movement of molecules up/ against concentration gradient (low to high) that always requires ATP & the help of a protein.
The nucleus membrane is just like the cell membrane just with more pores called ____ _____ and move large amounts of what 4 things.
- Nuclear Pores
- RNA, Hormones, Nucleotides & Proteins
Proteins that enter the nucleus contain a ____ ______ ______
Nuclear Localization Signal
A chaperone protein called ______ binds the NLS and guides the protein through the nuclear pore complex.
Proteins that enter the ER have a special tag called an____ _____ ______ ______ which is always at the ___ of the protein.
- Endoplasmic Reticulum Signal Sequence.
When sugar tags are added to the protein in the tertiary shape in the smooth ER it is called:
____ face is the front of the Golgi Apparatus and the ____ face is the back.
Once the proteins are in the Golgi App. they will be given additional tags and then sorted into ____ ______ with tags that interact with the right proteins.
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