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AP Biology: Chemistry Flashcards | StudBud
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AP Biology: Chemistry
AP Biology: Chemistry
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A review for chapters 2-3.
Flashcards
36 cards
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Practice quiz
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Questions
36
Answers
1
_____ are the electrons located on the outermost electron shell.
Final electrons
Potential electrons
Valence electrons
Atomic electrons
2
Marcomolecules that include DNA and RNA, and determines the function of a protein are ____.
Proteins
Lipids
Carbonhydrates
Nucleic Acids
3
Fats, fatty acids, and steroids are all _____.
Nucleic Acids
Lipids
Proteins
Carbohydrates
4
Which is NOT a carbon functional group?
Carbonyl
Amino
Dinoxyl
Sulfhydryl
5
The pH of pure, distilled water is ___________
7
6
5
8
6
What can cause a protein to denature, or to unravel and become inactive?
A temperature change
A salt concentration change
All of the above
A pH change
7
What type of energy is the least available to perform cellular work?
Potential
Light
Mechanical
Thermal
8
A substance that increases the hydrogen ion concentration and has a pH of less than 7 is a ___.
Base
Acid
9
The primary energy-transferring molecule in a cell is a(n) ____.
SAT
ATP
Lipid
Fat
10
Organic chemistry is the study of carbon compounds.
Yo no se
False
Don't care
True
11
Which of the following is an anabolic reaction?
Photosynthesis
Hydrolysis
Respiration
Digestion
12
Uracil replaces DNA's _____ in an RNA molecule.
Thymine
Adenine
Guanine
Cytosine
13
Which of the following is NOT a property of water?
High surface tension
High polarity
Low heat of vaporization
Low density as solid
14
A protein that catalysizes reactions and regulates the metabolism is called a _____.
ATP molecule
Cholestoral
Enzyme
Ribose sugar
15
Which of the following is NOT one of the top 8 elements of life?
Hydrogen
Nitrogen
Carbon
Iron
16
Sugars and polymers of sugars are ______.
Proteins
Lipids
Nucleic Acids
Carbohydrates
17
The reaction that breaks down polymers back into monomers is called a _____ reaction.
Hydrolysis- adds water to polymer
Dehydration- removes water from polymer
18
Electrons are ______ charged.
Negatively
Positively
Neutrally
19
Water has ______.
Both
Neither
Cohesion
Adhesion
20
How are the hydrogen atoms and the oxygen atoms in water bonded?
Nonpolar covalent bonds
Polar ionic bonds
Nonpolar ionic bonds
Polar covalent bonds
21
Oils, fats, and lipids are all _____.
Hydrophillic
Hydrophobic
22
Polymers are long molecules consisting of many monomers.
Yo no se
True
False
Don't care
23
A nucleotide is made up of ______.
A nitrogenous base, a phosphate group, and a pentose sugar.
A nitrogenous base and a pentose sugar.
Sugar, spice, and everything nice.
A nitrogenous base and a phosphate group.
24
Up to how many bonds can carbon form?
3
1
2
4
25
A macromolecule consisting of folded and coiled polypeptides is a ______.
Carbohydrate
Nucleic Acid
Lipid
Protein
26
The shape of a DNA molecule is a _____
My glorious face
Circle
Square
Double helix
27
What accounts for the differences between two isotopes of the same element?
The number of electrons
The number of neutrons
The number of protons
The number of valence electrons
28
A reaction that is catabolic and creates negative ΔG is also called an _____ reaction.
Endothermic
Endergonic
Dynamic
Exergonic
29
At which level of protein structural organization could change the function of a protein?
Secondary
Tertiary
Quaternary
All of the above
30
What does ΔG represent?
The change of metabolism speed in a system
The change of free energy in a system
The rate of synthesis in a system
The rate of epicness that one must achieve to combust
31
_____ is when hydrogen bonds hold a substance together.
Cohesion
Adhesion
32
What type of reaction increases the entropy in a system?
Allergic
Anabolic
Catabolic
33
Fatty acids that lack double bonds and are typically found in animals are called ____.
Saturated
Unsaturated
34
A _____ bond is when two or more oppositely charged atoms bond.
Covalent
Ionic
35
Polypeptides are made of amino acid polymers.
Don't care
Yo no se
True
False
36
Polysacchrides are carbohydrates that can store or build materials. Plants use glycogen.
False
True
Don't care
Yo no se
