Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 41.2, Problem 3CC
Summary Introduction
To explain: Similarities between digestion of food in an animal and combustion of gasoline in an automobile.
Concept introduction:
Digestion is a catabolic process in the digestive tract, where the ingested food changes into simpler, soluble and diffusible substances that can be absorbed by the body.
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Introduction to Experiment 2: Protein Digestion by Pepsin
In this experiment, we will look at for evidence of protein digestion using albumin, a protein, and Biuret reagent. Biuret reagent is used to test for the presence of proteins, or more specifically, peptide bonds. When long polypeptide chains are present the solution will turn violet, and when shorter polypeptide chains are present the solution will turn a lighter pink color.
What is/are the end product(s) of protein digestion? ____________________________________________________________
What is the purpose of the enzyme pepsin? _______________________________________________________________________
If protein digestion has occurred, will the solution be violet or pink (choose one)? _________________
Hypotheses/Predictions (See Methods section for details):
What color do you expect the solution to turn when the P tubes are mixed with Biuret solution and why?
P1…
Introduction to Experiment 2: Protein Digestion by Pepsin
In this experiment, we will look at for evidence of protein digestion using albumin, a protein, and Biuret reagent. Biuret reagent is used to test for the presence of proteins, or more specifically, peptide bonds. When long polypeptide chains are present the solution will turn violet, and when shorter polypeptide chains are present the solution will turn a lighter pink color.
What is/are the end product(s) of protein digestion? Amino acids
What is the purpose of the enzyme pepsin? It helps in the digestion of proteins by breaking down the peptide bonds between amino acids into smaller peptides
If protein digestion has occurred, will the solution be violet or pink (choose one)?
Hypotheses/Predictions (See Methods section for details):
What color do you expect the solution to turn when the P tubes are mixed with Biuret solution and why?
P1
P2
P3
P4
The least protein digestion (or none at all) will take place in tubes…
ASAP , explain also...
Chapter 41 Solutions
Campbell Biology
Ch. 41.1 - An animal requires 20 amino acids to make...Ch. 41.1 - Prob. 2CCCh. 41.1 - WHAT IF? If a zoo animal eating ample food shows...Ch. 41.2 - Prob. 1CCCh. 41.2 - In what sense are nutrients from a recently...Ch. 41.2 - Prob. 3CCCh. 41.3 - Explain why a proton pump inhibitor, such as the...Ch. 41.3 - Prob. 2CCCh. 41.3 - Prob. 3CCCh. 41.4 - Prob. 1CC
Ch. 41.4 - What features of a mammal's digestive system make...Ch. 41.4 - WHAT IF? "Lactose-intolerant" people have a...Ch. 41.5 - Explain how people can become obese even if their...Ch. 41.5 - WHAT IF? Suppose you were studying two groups of...Ch. 41.5 - Prob. 3CCCh. 41 - Prob. 41.1CRCh. 41 - Propose an artificial diet that would eliminate...Ch. 41 - Prob. 41.3CRCh. 41 - How does human anatomy indicate that our primate...Ch. 41 - Prob. 41.5CRCh. 41 - Fat digestion yields fatty acids and glycerol....Ch. 41 - The mammalian trachea and esophagus both connect...Ch. 41 - Prob. 3TYUCh. 41 - Prob. 4TYUCh. 41 - Prob. 5TYUCh. 41 - After surgical removal of the gallbladder, a...Ch. 41 - If you were to jog 1 km a few hours after lunch,...Ch. 41 - DRAW IT Create a flowchart to summarize the events...Ch. 41 - EVOLUTION CONNECTION Lizards and snakes cannot...Ch. 41 - SCIENTIFIC INQUIRY In human populations of...Ch. 41 - WRITE ABOUT A THEME: ORGANIZATION Hair is largely...Ch. 41 - SYNTHESIZE YOUR KNOWLEDGE Hummingbirds are well...
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