Cells and Internal Environment Flashcards
1
Q
What are the percentages of the body fluid compartments?
A
Average Human 18% Protein 15% Fat 7% Minerals 60% Water
2
Q
Where are the body fluid components found?
A
40% Intracellular fluid
15% Interstitial Fluid
5% Blood Plasma
3
Q
Why is the body said to have chemical disequilibrium?
A
Different composition due to cell membrane’s permeability to molecules, which varies greatly
4
Q
How is the phospholipid bilayer structured?
A
Fluid-mosaic model with hydrophilic phosphate heads on the outside and the fatty acid hydrophobic chains on the inside. Transmembrane protein forms holes or pores in membrane to allow molecules to cross
