Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 3.4, Problem 1CSC
Infectious prions such as those that cause mad cow disease are abnormally folded versions of a protein that is found throughout the body. The secondary structure of the normal prion protein is primarily helical. Infectious prions, however, fold into pleated sheets. The pleated sheets are so stable they are unaffected by the enzymes that break down normal prion protein. As a result, infectious prions accumulate destructively in the brain.
Helices and pleated sheets are the two major secondary structures of proteins. What do protein tertiary and Quaternary structures look like?
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Figure 6-7
Illustration, Irving Gels. Image from the Irving Geis Collection/Howard Hughes
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Chapter 3 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 3.1 - which of these is/are polar molecules? (you may...Ch. 3.1 - define organic molecules and explain why carbon is...Ch. 3.1 - explain why functional groups are important in...Ch. 3.1 - name and describe the properties of seven...Ch. 3.2 - define organic molecules and explain why carbon is...Ch. 3.3 - Describe hydrolysis of this molecule.Ch. 3.3 - describe the major types of carbohydrates?Ch. 3.3 - provide examples of each type of carbohydrate and...Ch. 3.4 - Look up the rest of the amino acids and. based on...Ch. 3.4 - Infectious prions such as those that cause mad cow...
Ch. 3.4 - Why do many proteins, when heated excessively....Ch. 3.4 - Why a Perm Is (Temporarily) Permanent?Ch. 3.4 - describe protein subunits and how proteins are...Ch. 3.4 - explain the four levels of protein structure and...Ch. 3.4 - list several functions of proteins and provide...Ch. 3.4 - Prob. 4CYLCh. 3.5 - describe the general structure of nucleotides?Ch. 3.5 - list three different functions of nucleotides?Ch. 3.5 - explain how nucleic acids are synthesized?Ch. 3.5 - give two examples of nucleic acids and their...Ch. 3.5 - Puzzling Proteins All cells use DNA as a blueprint...Ch. 3.6 - What kind of reaction breaks this molecule apart?Ch. 3.6 - An obese 55-year-old woman consults her physician...Ch. 3.6 - Why are steroid hormones able to diffuse through...Ch. 3.6 - compare and contrast the structure and synthesis...Ch. 3.6 - describe the functions of fats, oils, and waxes?Ch. 3.6 - Prob. 3CYLCh. 3.6 - Prob. 1CTCh. 3 - Polar molecules a. dissolve in lipids. b. are...Ch. 3 - Prob. 2MCCh. 3 - Prob. 3MCCh. 3 - Which of the following is not composed of...Ch. 3 - Prob. 5MCCh. 3 - In organic molecules made of chains of subunits,...Ch. 3 - Prob. 2FIBCh. 3 - Prob. 3FIBCh. 3 - Prob. 4FIBCh. 3 - Fill in the following with the appropriate type of...Ch. 3 - Prob. 1RQCh. 3 - List the four principal classes of biological...Ch. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Describe the synthesis of a protein from amino...Ch. 3 - Where in nature do we find cellulose? Where do we...Ch. 3 - Based on their structure, sketch and explain how...Ch. 3 - Prob. 2ACCh. 3 - Prob. 3AC
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