Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 3.5, Problem 1CC
When water and oil are added to a test tube, the two liquids form two separate layers (think of oil and vinegar in a bottle of salad dressing). If a solution of phospholipids was added to a mixture of water and oil, where would the phospholipids dissolve?
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You're an undercover biological weapons agent who has been given an unknown liquid. One of the tests you need to run is to see if it contains protein (remember, foreign proteins can cause severe
immune responses which can be a powerful biological weapon). You set up 3 test tubes each with 10mL of the following: distilled water, gelatin solution and the unknown.
The distilled water is clear, the gelatin solution is clear with a beige tint, and the unknown is cloudy white.
You use Biuret's Reagent - a dark blue dye which will turn a liquid sample purple in the presence of protein.
When Biuret's Reagen is added to the gelatin, predict what color you expect it to become: [a] (no change | blue | purple).
You're an undercover biological weapons agent who has been given an unknown liquid. One of the tests you need to run is to see if it contains protein (remember, foreign proteins can cause severe
immune responses which can be a powerful biological weapon). You set up 3 test tubes each with 10mL of the following: distilled water, gelatin solution and the unknown.
The distilled water is clear, the gelatin solution is clear with a beige tint, and the unknown is cloudy white.
You use Biuret's Reagent - a dark blue dye which will turn a liquid sample purple in the presence of protein.
When Biuret's Reagen is added to the gelatin, predict what color you expect it to become: [a] (no change | blue | purple).
QUESTION 2
You included both a positive and negative control for this experiment. The water is the [c] control.
QUESTION 3
If the positive control turns purple, it means:
there is no protein present
O this control is no good - need to troubleshoot and perform the experiment again
there is…
You have 12 mL of cells you need to treat with Hydrogen Peroxide (H2O2), such that the final concentration of H2O2 is 50 uM. How much of a 30 mM stock solution of H2O2 would you add to your cells?
Chapter 3 Solutions
Principles of Biology
Ch. 3.1 - Carbon has an atomic number of ___________ and has...Ch. 3.1 - Prob. 2TYKCh. 3.2 - Formation of polymers from monomers typically...Ch. 3.3 - Which of the following classes of organic...Ch. 3.4 - Prob. 1CCCh. 3.4 - Prob. 1BCCh. 3.4 - Glucose, galactose, and fructose are examples of...Ch. 3.4 - _____________ is a storage polysaccharide commonly...Ch. 3.5 - When water and oil are added to a test tube, the...Ch. 3.5 - For a more detailed view of the components of cell...
Ch. 3.5 - Hydrolysis of a triglyceride yields 3 glycerols...Ch. 3.5 - Which of the following are highly amphipathic?...Ch. 3.6 - Which of the following is the primary structure of...Ch. 3.6 - A peptide bond is formed between amino groups of...Ch. 3.7 - If the sequence of bases in one strand of a DNA...Ch. 3.7 - Prob. 1TYKCh. 3.7 - Which of the following is not found in DNA?...Ch. 3 - Which of the following is a common functional...Ch. 3 - Prob. 2TYCh. 3 - Prob. 3TYCh. 3 - Which of the following bonds is/are nonpolar?...Ch. 3 - Prob. 5TYCh. 3 - Prob. 6TYCh. 3 - Prob. 7TYCh. 3 - Prob. 8TYCh. 3 - Prob. 9TYCh. 3 - Prob. 10TYCh. 3 - Imagine that a proteins primary structure could...Ch. 3 - Explain the difference between saturated and...Ch. 3 - Prob. 3CCQCh. 3 - Prob. 1CBQCh. 3 - Prob. 2CBQ
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