The answer to the question is d
To determine visually the pH(acidity of basicity) of the solution.
Cell membrane is a structure of a cell that contains lipid bilayer and embedded proteins. It functions to protect the cell from the surroundings and also controls the materials entering in or leaving out of the cell. The red blood cells (erythrocytes) are cells of the blood that carry oxygen to be distributed to all the body tissues. The cell membrane of the red blood cells like many other body cells contain very few sodium channels.
B) They maintain balance in the cell.
That mix of hydrophobic and hydrophilic, in other words, the mix of repelling and attraction maintains the aqueous balance in a cell and it's exterior.
Hope it helped,
BioTeacher101
Answer:
C. both
Explanation:
The particle theory and wave theory are both used today.
The particle theory tells us that light is a particle or photon. The wave theory tells us that light travels in waves.
