Cellular Level of Organization
What are the three main parts of a eukaryotic cell? Plasma membrane, organelles, cytoplasm Plasma membrane, organelles, nucleus Plasma membrane, cytoplasm, organelles Plasma membrane, cytoplasm, nucleus Plasma membrane, cytosol, organelles Plasma membranes consist of what three components? Phospholipids, glycoproteins, water Proteins, cholesterol, fatty acids Cholesterol, fatty acids, glycolipids Proteins, phospholipids, cholesterol Water, proteins, fatty acids What are the nonpolar parts of a phospholipid? Head group Tail group Both are nonpolar Neither are nonpolar
4. This is the only polar portion of a cholesterol molecule and it forms hydrogen bonds with the polar heads of phospholipids. a. –OH group b. –CH3 group c. –CH4 group d. –OOH group e. None of the above 5. This type of membrane protein will extend throughout the entire membrane touching both the Intracellular fluid and the Extracellular fluid. a. Integral proteins b. Transmembrane proteins c. Phospholipids d. Integral proteins and Transmembrane proteins e. All of the above 6. This portion of the cell membrane enables cell membranes to produce chemical products. a. Receptors b. Phospholipids c. Cholesterol d. Enzymes e. Ligand 7. Which of the following is a function of a membrane protein that binds with hormones and neurotransmitters? a. Transporters b. Receptors c. Enzymes d. Linkers e. Cell Identification markers
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8. This type of membrane protein helps to anchor proteins in the plasma membrane of neighboring cells to one another. a. Transporters b. Receptors c. Ligand d. Ion channels e. Linkers 9. The characteristic of plasma membranes allowing only some substances to move through is known as _________________ a. Selective permeability b. Concentration gradient c. Electrical gradient d. Solubility e. Transportation 10. a. b. c. d.