1) As the of a cell decreases, the ratio of its surface area to volume a) increases b) decreases c) stays the same 2) The cell theory states that a) all life comes from preexisting cells b) all life is composed of cells c) the cell is the basic unit of life d) all of these are correct 3) Prokaryotic cells contain all of the following except a) cytoplasm b) a plasma membrane c) DNA d) a nucleus 4) Which of the following is not part of the fluid-mosaic model? a) phospholipids b) proteins c) cholesterol d) chromatin 5) Facilitated transport differs from diffusion in that facilitated diffusion a) involves the passive use of a carrier protein b) involves the active use of a carrier protein c) moves a molecule from a low to a high concentration d) involves the use of ATP molecules 6) When a cell is placed in a hypotonic solution,  a) solute exits the cell to equalize the concentration on both sides of the membrane b) water exits the cell towards the area of the lower solute concentration c) water enters the cell toward the area of higher solute concentration d) solute exits and water enters the cell 7) location of the chromatin and nucleolus a) golgi apparatus b) nucleus c) ribosome d) lysosome 8) Organelle where proteins and lipids from the ER are modified a) golgi apparatus b) nucleus c) ribosome d) lysosome 9) contains digestive enzymes a) golgi apparatus b) nucleus c) ribosome d) lysosome 10) the site of protein synthesis a) golgi apparatus b) nucleus c) ribosome d) lysosome 11) The ribosomes on the rough ER assemble ______, while _______ are assembled in the smooth ER.  a) proteins; phospholipids b) cholesterol; proteins c) DNA; proteins d) cholesterol; phospholids 12) The cytoskeleton of a cell consists of all of the following except a) microtubules b) actin filaments c) an extracellular matrix d) intermediate filaments 13) Cilia and flagella are involved in a) forming junctions between cells b) establishing the extracellular matrix c) cell-to-cell communication d) cell movement 14) The active site of an enzyme a) is identical to that of any other enzyme b) is the part of the enzyme where the substrate can fit c) is destroyed during a chemical reaction d) is where the coenzyme binds 15) Enzymes accelerate a chemical reaction by a) reducing the amount of substrate produced b) lowering the energy of activation of the reaction c) increasing the energy of activation of the reaction d) reducing the amount of reactant needed 16) Which of the following pathways produces the greatest amount of ATP? a) the citric acid cycle b) glycolysis c) the electron transport chain d) fermentation

Chapter 3: Cell Structure and Function

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？