Microbiology with Diseases by Body System (4th Edition)
4th Edition
ISBN: 9780321918550
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 2, Problem 9FIB
Fill in the Blanks
9. The ____________ scale is a measure of the concentration of hydrogen ions in a solution.
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Activity 2. Observing and Comparing Solids
Directions: This is a short activity that can be done in approximately 10 minutes.
Follow the procedures and answer the questions that follow.
Materials needed: Magnifying glasses, sugar, salt, pepper
>You will observe granules of sugar, salt, and pepper under a magnifying glass, and
observe the similarities and differences among these common materials.
>A pinch of each material should be taken from its container and placed on a piece
of paper or board paper.Using different magnifying glasses with different powers,
you will examine the grains.
*For those who have no magnifying glass, you can look at the picture or open the
link located below the picture.
light
muscovado
demerara
caster
dark
muscovado
granulated
soft brown
Sugar Granules
https://bit.ly/2KH7CSR
Table D. Millon's Reaction
Observation
Samples
1. Tyrosine
2. Casein
3. Albumin
4. Gelatin
5. Peptone
6. distilled water
Fit to
3. A group of students wants to study the effects of temperature on bacterial growth. To get bacteria, they
leave petri dishes of nutrient agar open on a shelf. They then put the dishes in different places: an
incubator (37 degrees C) a lab room (21 degrees C), a refrigerator (10 degrees C) and a freezer (0 degrees
C). Bacterial growth is measured by estimating the percentage of each dish covered by the bacteria at the
end of a three day growth period.
a) What is the independent variable?
b) What is the dependent variable?
c) List two (or more) ways to improve this experimental design.
Chapter 2 Solutions
Microbiology with Diseases by Body System (4th Edition)
Ch. 2 - Electrons zip around the nucleus at about 5...Ch. 2 - Chlorine and potassium atoms form ionic bonds,...Ch. 2 - Why are decomposition reactions exothermic, that...Ch. 2 - Why does the neutralization of an acid by a base...Ch. 2 - Raw Oysters and Antacids: A Deadly Mix? The highly...Ch. 2 - Why do the cell membranes of microbes living in...Ch. 2 - Prob. 1MCCh. 2 - The atomic mass of an atom most closely...Ch. 2 - One isotope of iodine differs from another in...Ch. 2 - Prob. 4MC
Ch. 2 - Which of the following terms most correctly...Ch. 2 - In water, cations and anions of salts dissociate...Ch. 2 - Prob. 7MCCh. 2 - Which of the following statements about a...Ch. 2 - Proteins are polymers of ___________. a. amino...Ch. 2 - Which of the following are hydrophobic organic...Ch. 2 - Fill in the Blanks 1. The outermost electron shell...Ch. 2 - Fill in the Blanks 2. The type of chemical bond...Ch. 2 - Prob. 3FIBCh. 2 - Prob. 4FIBCh. 2 - Fill in the Blanks 5. Groups of atoms such as NH2...Ch. 2 - Fill in the Blanks 6. The reverse of dehydration...Ch. 2 - Fill in the Blanks 7. Reactions that release...Ch. 2 - Fill in the Blanks 8. All chemical reactions begin...Ch. 2 - Fill in the Blanks 9. The ____________ scale is a...Ch. 2 - Prob. 10FIBCh. 2 - Label a portion of the molecule below; label two...Ch. 2 - Shown is the amino acid tryptophan. Put the letter...Ch. 2 - List three main types of chemical bonds, and give...Ch. 2 - Name five properties of water that are vital to...Ch. 2 - Prob. 3SACh. 2 - What is the difference between atomic oxygen and...Ch. 2 - Explain how the polarity of water molecules makes...Ch. 2 - Prob. 1CTCh. 2 - Prob. 2CTCh. 2 - Two freshmen disagree about an aspect of...Ch. 2 - When an egg white is heated, it changes from...Ch. 2 - Prob. 5CTCh. 2 - The poison glands of many bees and wasps contain...Ch. 2 - Prob. 7CTCh. 2 - Prob. 8CTCh. 2 - The deadly poison hydrogen cyanide has the...Ch. 2 - Triple covalent bonds are stronger and more...Ch. 2 - How can hydrogen bonding between water molecules...Ch. 2 - How can a single molecule of magnesium hydroxide...Ch. 2 - Prob. 13CTCh. 2 - Prob. 14CTCh. 2 - A textbook states that only five nucleotide bases...Ch. 2 - Prob. 1CM
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