Which part of the cell membrane is polar and allows the cell to exist in water

Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2

Question 1 which of the following allows cells to take in fluids? a. phagocytosis b. pinocytosis c. exocytosis d. receptor-mediated endocytosis question 2 molecules move along their concentration gradient (from areas of high concentration to low concentration) using active transport mechanisms. a. true b. false question 3 which of the following powers active transport (ie. provides the energy for)? a. glucose b. transport proteins c. atp d. phospholipids question 4 what type of lipid is a major component of the plasma membrane? a. cholesterol b. phosopholipids c. proteins d. triglycerides

Which sets of mrna codons could genetically come for a protein with the following amino acid composition