The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded proteins? A.
allowing specific substances to flow into the cell
B.
preventing the phospholipid tails from binding together
C.
defining the cell's structure and shape
D.
protecting the cell from physical harm

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Compare and contrast the bohr model and the electron cloud models of the atom.

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.