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Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
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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Chapter 3 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 3.1 - define organic molecules and explain why carbon is...Ch. 3.1 - which of these is/are polar molecules? (you may...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 the major types of carbohydrates?Ch. 3.3 - A 19-year old 6' 2' male weighing 297 pounds comes...Ch. 3.3 - Describe hydrolysis of this molecule.Ch. 3.3 - provide examples of each type of carbohydrate and...Ch. 3.4 - Infectious prions such as those that cause mad cow...
Ch. 3.4 - describe protein subunits and how proteins are...Ch. 3.4 - Look up the rest of the amino acids and. based on...Ch. 3.4 - explain the four levels of protein structure and...Ch. 3.4 - Why do many proteins, when heated excessively....Ch. 3.4 - list several functions of proteins and provide...Ch. 3.4 - describe the properties of Intrinsically...Ch. 3.5 - Puzzling Proteins All cells use DNA as a blueprint...Ch. 3.5 - describe the general structure of nucleotides?Ch. 3.5 - Why a Perm Is (Temporarily) Permanent?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. 3.6 - Prob. 1CSRCh. 3.6 - FIGURE 3-22 Synthesis of a triglyceride...Ch. 3.6 - compare and contrast the structure and synthesis...Ch. 3.6 - An obese 55-year-old woman consults her physician...Ch. 3.6 - What kind of reaction breaks this molecule apart?Ch. 3.6 - why are steroid hormones able to diffuse through...Ch. 3.6 - describe the functions of fats, oils, and waxes?Ch. 3.6 - Why are steroid hormones able to diffuse through...Ch. 3.6 - Prob. 3CYLCh. 3 - Based on their structure, sketch and explain how...Ch. 3 - In organic molecules made of chains of subunits,...Ch. 3 - Polar molecules a. dissolve in lipids. b. are...Ch. 3 - Prob. 1RQCh. 3 - Prob. 2ACCh. 3 - Prob. 2FIBCh. 3 - Prob. 2MCCh. 3 - List the four principal classes of biological...Ch. 3 - Prob. 3ACCh. 3 - Prob. 3FIBCh. 3 - Prob. 3MCCh. 3 - Prob. 3RQCh. 3 - Prob. 4FIBCh. 3 - Which of the following is not composed of...Ch. 3 - Prob. 4RQCh. 3 - Fill in the following with the appropriate type of...Ch. 3 - Prob. 5MCCh. 3 - Prob. 5RQCh. 3 - Describe the synthesis of a protein from amino...Ch. 3 - Where in nature do we find cellulose? Where do we...
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- 10. Your instructor will give you 2 amino acids during the activity session (video 2-7. A. First color all the polar and non-polar covalent bonds in the R groups of your 2 amino acids using the same colors as in #7. Do not color the bonds in the backbone of each amino acid. B. Next, color where all the hydrogen bonds, hydrophobic interactions and ionic bonds could occur in the R group of each amino acid. Use the same colors as in #7. Do not color the bonds in the backbone of each amino acid. C. Position the two amino acids on the page below in an orientation where the two R groups could bond together. Once you are satisfied, staple or tape the amino acids in place and label the bond that you formed between the two R groups. - Polar covalent Bond - Red - Non polar Covalent boND- yellow - Ionic BonD - PINK Hydrogen Bonn - Purple Hydrophobic interaction-green O=C-N H I. H HO H =O CH2 C-C-N HICK H HO H CH2 OH H₂N C = Oarrow_forwardFind the dental formula and enter it in the following format: I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format) Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).arrow_forward12. Calculate the area of a circle which has a radius of 1200 μm. Give your answer in mm² in scientific notation with the correct number of significant figures.arrow_forward
- Describe the image quality of the B.megaterium at 1000X before adding oil? What does adding oil do to the quality of the image?arrow_forwardWhich of the follwowing cells from this lab do you expect to have a nucleus and why or why not? Ceratium, Bacillus megaterium and Cheek epithelial cells?arrow_forward14. If you determine there to be debris on your ocular lens, explain what is the best way to clean it off without damaging the lens?arrow_forward
- 11. Write a simple formula for converting mm to μm when the number of mm's is known. Use the variable X to represent the number of mm's in your formula.arrow_forward13. When a smear containing cells is dried, the cells shrink due to the loss of water. What technique could you use to visualize and measure living cells without heat-fixing them? Hint: you did this technique in part I.arrow_forward10. Write a simple formula for converting μm to mm when the number of μm's are known. Use the variable X to represent the number of um's in your formula.arrow_forward
- 8. How many μm² is in one cm²; express the result in scientific notation. Show your calculations. 1 cm = 10 mm; 1 mm = 1000 μmarrow_forwardFind the dental formula and enter it in the following format: I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format) Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).arrow_forwardAnswer iarrow_forward
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