Since the cell membrane is not identical in all regions it is referred to as the following: O a. Fluid Mosaic Model O b. Gas Mosaic Model O c. Solid Mosaic Model O d. A and C Oe. All of the Above
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- Which of the following junctions allows for cytoplasm-to-cytoplasmcommunication between cells?a. adhesion junctions c. gap junctionsb. tight junctions d. None of these are correct.A selectively permeable A. allows some substance to move across the membrane, but not others B. allows unlimited movement of materials into or out of the cell C. allows substances to enter, but prevent any substances from leaving the cell D. allows only helpful materials to cross the the cell membrane into the cell1. Label the parts/organelles in the cell below. a. thru I. a. b. C. d. g. k. 2. Give one function of each part/organelle. а. b. C. d. е. f. g. h. i. j. k. I.
- Transmembrane proteins are proteins that O A. Allow a substance through the cell wall B. Sit only on the surface of the plasma membrane C. Span the plasma membrane from one side to the other. O D. All of the aboveThe diagram below shows four shapes for cells of equal volume. Which of the cells would be capable of the greatest exchange of material across a cell membrane per minute? Cell W Select one: a. Y b. Z C. W d. X Cell X Cell Y Cell ZThe following involves the expelling of dead organelles and/or foreign substances out of the cell: O a. Na-K-ATPase Protein Pump O b. Phagocytosis O c. Pinocytosis O d. Exocytosis Oe. All of the Above
- Which one of the following structures between two adjacent cells is an effective transport pathway? A Plasmalemma B Plasmodesmata C Plastoquinones D Endoplasmic reticulumA = if the first sentence is true and the second is false B = if the second sentence is true and the first is false true. false. The cytoplasm was once known as sarcode. Discovered by a German Biologist, Felix Dujardin. A. A B. B C. C D. D O C = if both sentences are D = if both sentences areNormal operations of the factory create a certain amount of factory waste. In addition, at times trash accidentally comes in from outside. The factory deals with waste by dumping it all into incinerators, which burn and break down unwanted materials. These trash incinerators represent A. Lysosomes B. Nucleus C. Smooth ER
- Choose answer of the following Which of the following junctions allows for cytoplasm-to-cytoplasmcommunication between cells?a. adhesion junctionsb. tight junctionsc. gap junctionsd. None of these are correct.Why is the surface area of a cell so important in determining maximum cell size? a. a very large cell needs very little surface area relative to its volume b. a very small cell can't exchange material across its surface c. a very large cell would need to exchange a very large amount of material with the external environment d. a typical cell has more surface area than volume e. all of the aboveThe cytoplasmic connections from cell to cell are known as: A middle lamella B plasmodesmata C cell membrane system D endoplasmic reticulum
