In the 1600s, advances in microscopy led to the development of cell theory. Which of the following statements is part of the cell theory? O A. All cells require water and oxygen to survive O B. All living things are made of one or more cells. O C. All cells have organelles with specialized functions. D. All living things rely on several different types of cells. ​

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