EBK BIOLOGY
5th Edition
ISBN: 8220101337627
Author: Maier
Publisher: PEARSON
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Chapter 3, Problem 2LTB
Summary Introduction
To describe:
Three common substances, which can easily pass through the cell membrane.
Introduction:
The cell membrane is the outer layer boundary of every cells. It is made up of phospholipids and is semipermeable to the substances. It acts as a barrier between the internal and the external environment of the cell.
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discuss the following statement: “the structure and function of a living cell are dictated by the laws of physics and chemistry.”
Identify the polar, inorganic molecule which can pass freely through the plasma membrane.
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Identify the non-polar organic molecule which can pass freely through the plasma membrane.
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- Identify the nonpolar, inorganic molecule which can pass freely through the plasma membrane. CH3CH2OH (ethanol) CO2 (carbon dioxide) C12H22O11 (sucrose) C6H12O6 (glucose) C6H6 (benzene)arrow_forwardList three functions of membrane proteins.arrow_forwardThe cytoplasm of a certain cell is composed of a solution that is 98% water, 2% solutes. Consider the solution shown in the beaker in this picture: FOOE OOS Foor solution. [Select] Cytoplasm is 98% water, 2% solutes. The solution in the beaker would be considered when compared to [Select] The plasma membrane is impermeable to solutes. Beaker solution is 98% water, 2% solutes the cell. We would expect that the cell would [Select] if it was placed in the would account for whatever changes might occur to the volume of the cytoplasm of the cell when it is placed in the solution.arrow_forward
- Describe the structure and function of the three types of junctions found between cells.arrow_forwardWhat types of substances diffuse most readily through a cell membrane?arrow_forward1)Determine the way by which proteins function for transporting a material in a cell. 2) What roles do membrane proteins play in cell interactions?arrow_forward
- Identify how each of the following would pass through the plasma membrane: gases, large polar molecules, charged molecules (like ions), hydrophobic molecules, and small polar molecules. Be specific.arrow_forward2) Explain how the following cell transport systems work moving materials around inside the cell and other functions. Focus on structure and function, and Include how energy is used to accomplish these movements. A)Tubulin/Kinesin B)Actin/Myosinarrow_forwardDiscuss the five ways substances can pass across the cell membrane. Give examples of eacharrow_forward
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