CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
3rd Edition
ISBN: 9780136811206
Author: Urry
Publisher: SAVVAS L
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Chapter 33.2, Problem 3CC
Summary Introduction
To determine:
The similarities between digestion in animals and breakdown of gasoline in an automobile.
Introduction:
Digestion is a process of breaking down larger food particles into smaller food particles. Digestion is of two types: mechanical and chemical digestion. Mechanical digestion is chewing of food in mouth and smooth muscle contraction in stomach, whereas chemical digestion involves hydrolysis of macromolecules into smaller particles. The food that is hydrolyzed is absorbed by the body and the waste is eliminated in the form of feces.
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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? _______________________________________________________________________
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What color do you expect the solution to turn when the P tubes are mixed with Biuret solution and why?
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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? 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):
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Chapter 33 Solutions
CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
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
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