CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
3rd Edition
ISBN: 9780135191811
Author: Urry
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 33, Problem 9TYU
Summary Introduction
To explain:
The reason as to why the damaged keratin protein cannot be replaced by the shampoo containing the same protein.
Introduction:
Keratin is a protein that forms the nails and hairs and outer layer of skin in abundance in humans. It is a fibrous structural protein. In other animals it forms the hoofs claws and horns like in ruminants. It is an extremely tough protein and is insoluble in organic solvents and water. It protects the underlying epithelial cells from the damage or stress. Next protein that is as tough as keratin is chitin.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
5
Pls help ASAP, thanks!"Collagen is a fibrous protein which..."
All proteins . (Choose the most complete answer.)
Group of answer choices
have the same number of amino acids
are synthesized on ribosomes and are made of amino acids connected by peptide bonds
are made of amino acids connected by peptide bonds only
are synthesized on ribosomes only
Chapter 33 Solutions
CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
Ch. 33.1 - An animal requires 20 amino acids to make...Ch. 33.1 - Prob. 2CCCh. 33.1 - WHAT IF? if a zoo animal eating ample food shows...Ch. 33.2 - Prob. 1CCCh. 33.2 - In what sense are nutrients from a recently...Ch. 33.2 - Prob. 3CCCh. 33.3 - How does swallowed food reach the stomach of a...Ch. 33.3 - Explain why a proton pump inhibitor, such as the...Ch. 33.3 - Prob. 3CCCh. 33.4 - Prob. 1CC
Ch. 33.4 - Prob. 2CCCh. 33.4 - Prob. 3CCCh. 33.5 - Prob. 1CCCh. 33.5 - The energy required to maintain each gram of body...Ch. 33.5 - Prob. 3CCCh. 33 - The mammalian trachea and esophagus both connect...Ch. 33 - Which organ is incorrectly paired with its...Ch. 33 - Which of the following is not a major activity of...Ch. 33 - Prob. 4TYUCh. 33 - Prob. 5TYUCh. 33 - If you were to jog 1 km a few hours after lunch,...Ch. 33 - Prob. 7TYUCh. 33 - FOCUS ON EVOLUTION The human esophagus and trachea...Ch. 33 - Prob. 9TYUCh. 33 - Prob. 10TYU
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Dinah had her curly hair rebonded. One chemical is put on her hair to break the disulfide bonds that give the hair stands their shape (curly) and a second chemical is used to reform the disulfide bonds to hold the hair in a straight position. a. What level(s) of protein structure is/are affected by these processes? b. Why doesn’t the hair stay straight forever after this treatmentarrow_forwardmulitbale choic 1- If a substance such as a lipid isn’t soluble in water it might be described as (????) -Hydrophilic -Hydrophobic ------------------------------------------------------------------------------- 2- intercellular structures that have specific functions and are distinct from the cytosol are (????). -Microprocessors -Viruses -Organelles -Desmosomes ----------------------------------------------------------------------------------- 3- (????) are a class of lipid characterized by a carbon skeleton consisting of four fused rings. These lipids play vital roles as hormones. -Phospholipids -Ligands -Steroids -Hydrocarbons Thank you!arrow_forwardc. In lab, you recorded a UV-Vis spectrum of a mixture of proteins. What best explains why two major peaks were observed in your spectrum between 240 and 480 nm? i. Amino acids absorb light at two wavelengths depending on their identity. The sample was impure. All proteins absorb light at 280 due to the presence of aromatic amino acids and red proteins absorb light near 400 nm. The buffer absorbs light in the visible region and the proteins absorb light in the UV region of the spectrum. None of the above. ii. iii. iv. V. d. In lab, you ran an SDS-PAGE gel. What best explains the importance of adding SDS and heating your samples? i. SDS is a dye used for visualization and heat is used to dissolve the SDS in solution. iii. iv. SDS coats the protein with negative charge and heat aids in the unfolding of the proteins. SDS and heat both help stabilize the proteins during gel electrophoresis. SDS and heat both help break the peptide bonds of proteins, which is necessary for gel…arrow_forward
- 42 43 44arrow_forward3arrow_forwardChooses the correct prosthetic group of the given protein. lipid pigment phosphate Zinc carbohydrate copper Iron+pigment None Iron Nucleic Acid Chromatin Glutathione ADH VItelline Ovomucoid Carbonic Anhydrase Collagen Cytochem Enkephalin Mucin Ceruloplasmin Casein HDL Insulin Albuminarrow_forward
- Need correct answer with explanation Don't give spam Will give Positive rating for good answer. Answer all. 1.Which is the correct statement: Speed of protein synthesis > speed of protein folding Speed of protein synthesis < speed of protein folding Explain your answer. 2. a. How do the majority of proteins that exist outside cells get outside cells? Explain the pathway. b. Explain at least three major exceptions to your answer in part a. (HINTs: Curr. Opin. Biotechnol. 21, 621; Nature 496, 243.)arrow_forwardhow to read this table? like for example, just by looking at the table, it was said that leptin has 16 kda with 15% gel. How did they able to determine that leptin needs 15% gel?arrow_forwardMatch each of the statements Collagen Silk fibroid Keratinarrow_forward
- Imagearrow_forwardGive 2 structural features in each of the given proteins below that make them perform their biological roles effectively (structural features that directly make them effective in their respective biological roles). Explain how each structural feature directly contributes to proteins’ biological roles. hemoglobin immunoglobulinarrow_forwardI don't understand, pls help ASAP!arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
TISSUE REPAIR Part 1: Repair - Regeneration; Author: ilovepathology;https://www.youtube.com/watch?v=t-5EjlS6qjk;License: Standard YouTube License, CC-BY