BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
2020th Edition
ISBN: 9780135686553
Author: Audesirk
Publisher: PEARSON
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Question
Chapter 5, Problem 2AC
Summary Introduction
To review:
The structure or the configuration of 10 phospholipid molecules when immersed in vegetable oil.
Introduction:
Phospholipids make up the cell membrane. They are composed of a head part and a tail part. The head part is polar and is attracted to water. In other words, the head part is hydrophilic or water-loving. The tail part is nonpolar and is repelled by water. In other words, the tail part is hydrophobic.
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Explain why the polar nature of water enables water molecules to be cohesive. Also, why is this characteristic of water so important for plants?
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BRIEFLY DESCRIBE each part of the structure (see attached photo)
Chapter 5 Solutions
BIOLOGY: LIFE ON EARTH-W/MASTERING ACCE
Ch. 5 - Animal cells are surrounded by ______ fluid. This...Ch. 5 - Which of the following cannot enter a cell by...Ch. 5 -
3. Glycoproteins are important for
a. binding...Ch. 5 - Diffusions a. is always facilitated. b. occurs by...Ch. 5 - Which of the following is not true of endocytosis?...Ch. 5 -
1. Membranes consist of a bilayer of ________....Ch. 5 - A membrane that is permeable to some substances...Ch. 5 - Facilitated diffusion involves either _____...Ch. 5 - Prob. 4FTBCh. 5 -
5. After each molecule, place the two-word term...
Ch. 5 - Prob. 6FTBCh. 5 - Describe and diagram the structure of a plasma...Ch. 5 - Prob. 2RQCh. 5 - What are the five categories of proteins commonly...Ch. 5 - Prob. 4RQCh. 5 -
5. Define hypotonic, hypertonic, and isotonic....Ch. 5 -
6. Describe the following types of transport...Ch. 5 - Name the protein that allows facilitated diffusion...Ch. 5 - Imagine a container of glucose solution, divided...Ch. 5 - Prob. 9RQCh. 5 -
1. Different cells have different plasma...Ch. 5 - Prob. 2AC
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- Diagram 1 below illustrates a model of a phospholipid. Diagram 2 is a schematic of a single layer of water molecules in a rectangular dish. A. Describe or draw how phospholipid molecules will orient themselves if in contact with the water molecules in positions labeled A and B? B. Describe or draw how phospholipid molecules will orient themselves if in contact with the water molecules in positions labeled C? C. Explain the rationale behind your description or drawing.arrow_forwardDescribe/explain the role of linoleic acid in animal cells/organsarrow_forwardDraw the structure of these phospholipids:- a cephalin formed from two molecules of stearic acidarrow_forward
- Phospholipid molecules were suspended in a mixture made up of water/oil. Describe the molecular arrangement that will occur and provide explanation for the arrangement of the molecules in the aqueous/oil mixture environment and its application in cell membrane functionsarrow_forwardWhat properties define the phospholipids that make up the lipid bilayer? Select all that apply. A. Nonpolar, hydrophobic hydrocarbon tails B. Polar, hydrophilic phosphate heads C. Nonpolar, hydrophobic phosphate heads D. Polar, hydrophilic hydrocarbon tailsarrow_forwardDraw the structure of ethanolamine sphingomyelin formed from linoleic acid Draw the structure of serine sphingomyelin formed from arachidic acidarrow_forward
- Choose the TRUE statement. A phospholipid micelle (not a liposome) can be characterized as Forming a water in oil dispersion Having polar heads group-oriented inward AN aggregate forming below critical micellar concentration Having polar groups oriented outward. A spherical species featuring a double layer of phospholipid surrounding an aqueous compartment.arrow_forwardDifference in the structure of eukaryotic and prokaryotic cells. Provide example for each. You may draw cell structure using bond paper?arrow_forwardDiagram and describe what is responsible for the fact that different globular polypeptides have different functions. What is the role of primary structure? Tertiary structure?arrow_forward
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Macromolecules | Classes and Functions; Author: 2 Minute Classroom;https://www.youtube.com/watch?v=V5hhrDFo8Vk;License: Standard youtube license