Microbiology with Diseases by Body System Chapter 2
Terms in this set (19)
Which of the following structures have no electrical charge?
The atomic mass of an atom most closely approximates the sum of the masses of all its_____
Protons and electrons
Which of the following is not an organic compound?
Which of the following terms most correctly describes the bonds in a molecule of water?
a. nonpolar covalent bond
b. polar covalent bond
c. ionic bond
d. hydrogen bond
polar covalent bond
In water, cation and anions of salts dissociate from one another and become surrounded by water molecules. In this state, the ions are also called______.
Collectively, all of the decomposition reaction in an organism are called______
Which of the following statement about a carbonated cola beverage with a pH of 2.9 is true?
a. It has a relatively high concentration of hydrogen atoms
b. it has relatively low concentration of hydrogen ions
c. it has equal amounts of hydroxyl and hydrogen ions
d. cola is buffered solution.
It's has a relatively high concentration of hydrogen atoms
Proteins are polymers of_________
Which of the following are hydrophobic organic molecules?
d. nucleic acids
Anthrax is caused by a bacterium that avoids the body's defenses against disease by synthesizing an outer glycoprotein covering made from D-glutamic acid. This covering is not digestible by white blood cells. Why is the covering indigestible?
D-glutamic acid disguises the bacterium from immune surveillance.
Why can gelatin be changed back to liquid but cooked egg cannot?
The poison glands of many bees and wasps contain acidic compounds. What common household chemical could be used to neutralize this poison?
Gangrene contains a a tissue-destroying toxin called licethinase. It is an organic compound, yet many people consider "organic" chemicals to mean something is good. Explain the apparent contradiciton
How can hydrogen bonding between water molecules help explain water's ability to absorb large amounts of energy before evaporating?
How do you think chemical bonds and functional groups were first discovered?
We have seen that it is important that biological membranes remain flexible. Most bacteria lack sterols in their membranes and instead incorporate unsaturated phospholipids in the membranes to resist tight packing and solidification. Which fatty acid might best protect the membranes of an ice-dwelling bacterium?
Why is there no stereoisomer of glycine?
A textbook states that only five nucleotide bases are found in cells, but a laboratory worker reports that she has isolated eight different nucleotides. Explain why both are correct.
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OTHER SETS BY THIS CREATOR
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THIS SET IS OFTEN IN FOLDERS WITH...
Microbiology with Diseases by Body System Chapter 3
Microbiology with Diseases by Body System Chapter 1
Microbiology with Diseases by Body System Chapter 4
Microbiology with Diseases by Body System Chapter 5