Membrane part 1
What makes up the cell membrane?
Phospholipids
Explain the main purpose of Cholesterol
Helps keep the cell membrane strong and flexible
Peripheral proteins can only exist on the inner or outer portion of the cell membrane?
Outter
Cholesterol is only present in ____ cells
Animal
How many layers of phospholipids make up the cell membrane?
two
A glycolipid is a phospholipid that contains a ____________
sugar chain
This protein can bind with hormones
Receptor or signaling proteins
At low temperatures cholesterol does what to the cell?
Keeps the membrane more flexible
Which part of a phospholipid is Hydrophilic?
The phospholipid head
A protein with one or more sugar chains
Charged and large molecules can not cross the cell membrane alone and use what?
Transport protein
At high temperatures cholesterol does what to the cell?
Reduces fluidity/restricts movement
What part of the phospholipid is hydrophobic?
The two tails
A short sugar chain on a protein that is attached on the outside of the cell membrane is called a:
Oligosaccharide
This protein has attachment sites:
Attachment and recognition protein
What process does Enzymatic activity proteins help with?
ATP synthase