1) The cell membrane contains channels and pumps that help move materials from one side to the other. Which of the following are the components of these channels and pumps? a) lipids b) bilipids c) proteins d) carbohydrates 2) Which plasma membrane component can be either found on its surface or embedded in the membrane structure? a) protein b) glycolipid c) cholesterol d) carbohydrates 3) According to the Fluid Mosaic Model of the plasma cell membrane, what is the location of carbohydrates in the cell membranes? a) Carbohydrates span only the interior of a membrane. b) Carbohydrates are present only on the interior surface of a membrane. c) Carbohydrates are present only on the exterior surface of a membrane. d) Carbohydrates are in contact with the aqueous fluid both inside and outside the cell 4) Which of the following is NOT made of phospholipid bilayers? a) cell membrane b) chloroplast c) lipids d) mitochondrion 5) What process is used by prokaryotes to obtain some materials and remove waste? a) osmosis b) diffusion c) active transport d) passive transport 6) What type of molecules coats some types of bulk transport vesicles for stability? a) carbohydrates b) lipids c) nucleic acids d) proteins 7) Which of the following mechanisms can best account for the higher concentration of mineral nutrients in the root cells of vascular plants than in the surrounding soil environment?Diffusion a) Diffusion b) Osmosis c) Passive Transport d) Active Transport 8) Which of the following uses ATP to make the materials move in or out of the cell? a) Dialysis b) Osmosis c) Active transport d) Passive transport 9) Which of the following CORRECTLY describes active transport? a) transport that doesn’t use ATP b) down a concentration gradient c) uphill concentration gradient d) substance moved from high to low concentration 10) Which of the following refers to the selective passage of a compound through cell membrane? a) Dialysis b) Osmosis c) Active transport d) Passive transport 11) A kamias fruit was placed in a 50% salt solution. What will happen to the cells of the fruit in the said solution? a) the cell burst b) the cell shrinks c) the cell enlarges d) remains the same 12) Which of the following means of particle transport is shown in the figure?Exocytosis a) Exocytosis b) Endocytosis c) Protein pump d) Facilitated diffusion 13) What happens to the materials inside the membrane-bound vesicle after exocytosis? a) It leaves the cell. b) It is disassembled by the cell. c) It is used again in another exocytosis event d) It fuses with and becomes part of the plasma membrane 14) Two beakers are separated by a semi-permeable membrane that is permeable to water but not to solute Y. Beaker A contains a 10% solution of solute Y, while Beaker B contains a 30% solution of solute Y. Which of the following BEST describes the initial net movement of water across the membrane? a) Water will move equally between Beaker A and Beaker B, resulting in no net movement. b) Water will move from Beaker A to Beaker B. c) Water will move from Beaker B to Beaker A. d) No water will move across the membrane. 15) A cell needs to import a large quantity of glucose quickly. Which of the following transport mechanisms would be the MOST efficient at accomplishing this, given that glucose is a polar molecule? a) Simple diffusion across the membrane's hydrophobic core. b) Facilitated diffusion through a channel protein. c) Active transport via a pump, even against a concentration gradient. d) Pinocytosis (a form of endocytosis).

Quiz Cell Membrane Structure

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