Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Textbook Question
Chapter 3, Problem 1AC
In this chapter, you read that a phospholipid has a hydrophilic head and hydrophobic tails. Predict how phospholipids would organize themselves in water.
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Chapter 3 Solutions
Biology: Life on Earth
Ch. 3 - Fill-in-the-Blank In organic molecules made of...Ch. 3 - 5. Fill in the following with the appropriate type...Ch. 3 - Fill-in-the-Blank Proteins are synthesized by a...Ch. 3 - Fill-in-the-Blank Till in the following with the...Ch. 3 - Fill-in-the-Blank A nucleotide consists of three...Ch. 3 - Prob. 1RQCh. 3 - List the four principal classes of biological...Ch. 3 - What roles do nucleotides play in living...Ch. 3 - Prob. 4RQCh. 3 - Prob. 5RQ
Ch. 3 - Prob. 6RQCh. 3 - Describe the synthesis of a protein from amino...Ch. 3 - Where in nature do we find cellulose? Where do we...Ch. 3 - Which kinds of bonds between keratin molecules are...Ch. 3 - In this chapter, you read that a phospholipid has...Ch. 3 - Prob. 2ACCh. 3 - Some people think that consuming fat and sugar...Ch. 3 - Saliva from infected deer can transmit chronic...Ch. 3 - In an alternate universe where people could digest...
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- Phospholipids are amphipathic. Explain with an example?arrow_forwardWhich is true about the phospholipid membrane? Group of answer choices: A. It is made up of phospholipid molecules which have a hydrophilic tail and a hydrophobic head B. It is made up of 4 layers of phospholipid molecules C. It is made up of phospholipids, which have a hydrophilic head and a hydrophobic tail D. It is made up mostly of proteins but has cholestrol molecules and phospholipids embedded within itarrow_forwardDraw a sketch of a lipid bilayer, the structure that forms when a lipid such as phosphatidyl serine is dissolved in water.arrow_forward
- Explain the following statement: The structure of all biomembranes depends on the chemical properties of phospholipids, whereas the function of each specific biomembrane depends on the specific proteins associated with that membrane.arrow_forwardGive an example of a phospholipid bilayer?arrow_forwardThe cells of plant seeds store oils in the form of droplets enclosed by membranes. Unlike the membranes you learned about in this chapter, the oil droplet membrane consists of a single layer of phospholipids rather than a bilayer. Draw a model for a membrane around an oil droplet. Explain why this arrangement is more stable than a bilayer.arrow_forward
- The image shows a lipid bilayer, with the polar heads represented by circles and the hydrophobic tails represented by lines. Arrange the fatty acids in the lipid bilayer to indicate a structure that, when incorporated into a phospholipid, would result in a more fluid membrane with a lower melting point. Be sure to insert the fatty acids into the bilayer in the correct orientation. Not all the fatty acids will be used. Answer Bankarrow_forwardWrite a note on structure and function of lyso phospholipidsarrow_forwardMatch the letters on the diagram below to the correct terms. 1. Glycoprotein E 2. Hydrophilic portion of a phospholipid 3. Glycolipid B 4. Hydrophobic portion of a phospholipid G 5. Peripheral membrane protein F 6. Hydrophobic portion of a transmembrane protein 7. Hydrophilic portion of a transmembrane protein Aarrow_forward
- If you added many phospholipids to some water, they would spontaneously orient themselves into something resembling a membrane! Describe why this occurs.arrow_forwardThe diagram below illustrates the molecular structure of the cell membrane. The phospholipid bilayer of a cell membrane A B polar group с phosphate glycerol Which of the following is false about the way in which the cell membrane maintains its structure? D water water The different components of an individual phospholipid are held by covalent bonds. The attraction between the individual lipid tails inside the cell membrane is maintained by van der Waals forces. The attraction between the phosphate groups and the water molecules inside and out. side of the cell is maintained by hydrogen bonds. The bonds between the individual phospholipids that make up the cell membrane are connected by covalent bonds.arrow_forwardHow many phospholipid molecules are there in a 1-μm region of a phospholipid bilayer membrane? Assume that a phospholipid molecule occupies 70 Å of the surface area.arrow_forward
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