Which of the following statements about elements and compounds is accurate?
A. Elements are many different types of atoms together but
compounds are just one type of atom.
B. Elements are pure substances that cannot be broken down
physically but compounds are pure substances that can be broken
down physically.
C. Elements are not found on the Periodic Table but compounds are
found on the Periodic Table.
D. Elements are pure substances that cannot be broken down
chemically but compounds are pure substances that can be broken
down chemically.

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