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Biology Core Concepts
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1
Question
Why does water's high specific heat capacity help in body temperature regulation when sweating?
Page 2
Answer
Water pulls heat from the body when you sweat.
2
Question
Why does ice float on liquid water?
Page 2
Answer
Ice is less dense than water.
3
Question
What pH range defines acidic solutions?
Page 2
Answer
pH level from 1 to 6.9.
4
Question
What is the pH value for neutral solutions?
Page 2
Answer
pH level 7.
5
Question
What pH range corresponds to slightly basic solutions?
Page 2
Answer
pH level between 7 and 7.1.
6
Question
What pH range defines basic solutions?
Page 2
Answer
pH level from 7.1 to 14.
7
Question
What determines whether some people are lactose tolerant and others are not?
Page 2
Answer
Differences in the production of the lactase enzyme.
8
Question
What process connects monomers to form polymers?
Page 2
Answer
Dehydration synthesis.
9
Question
What process disconnects polymers into monomers?
Page 2
Answer
Hydrolysis.
10
Question
What are enzymes classified as in biological systems?
Page 2
Answer
Protein catalysts.
11
Question
How do enzymes affect chemical reactions?
Page 2
Answer
They lower the energy of activation so the reaction proceeds faster.
12
Question
What is the monomer unit for carbohydrates?
Page 2
Answer
Monosaccharides.
13
Question
What is the polymer form of carbohydrates?
Page 2
Answer
Polysaccharides.
14
Question
What is the primary function of carbohydrates in cells?
Page 2
Answer
Short term energy.
15
Question
What is the monomer unit for proteins?
Page 2
Answer
Amino acids.
16
Question
What is the polymer form of proteins?
Page 2
Answer
Polypeptides.
17
Question
What is a key function of proteins in cells?
Page 2
Answer
Builds muscle tissue.
18
Question
What are the monomer units for lipids?
Page 2
Answer
Fatty acids and glycerol.
19
Question
What is the polymer form associated with lipids?
Page 2
Answer
Phospholipids.
20
Question
What is the primary function of lipids in cells?
Page 2
Answer
Long term energy.
21
Question
What is the monomer unit for nucleic acids?
Page 2
Answer
Nucleotides.
22
Question
What are the polymer forms of nucleic acids?
Page 2
Answer
RNA and DNA.
23
Question
What is the primary function of nucleic acids?
Page 2
Answer
Stores and transports genetic information.
24
Question
What defines primary protein structure?
Page 3
Answer
The order of amino acids in the polypeptide chain.
25
Question
What characterizes secondary protein structure?
Page 3
Answer
The folding of the protein via alpha and beta helices.
26
Question
What is tertiary protein structure?
Page 3
Answer
The 3D arrangement of unbranched polypeptide chains.
27
Question
What defines quaternary protein structure?
Page 3
Answer
Arrangement of branched polypeptide subunits.
28
Question
What is the difference between a polypeptide chain and a polypeptide subunit?
Page 3
Answer
Polypeptide chains are alone; subunits form when connected to other chains.
29
Question
Why must cells maintain a small size?
Page 3
Answer
To have an efficient surface area to volume ratio.
30
Question
Why are cells compartmentalized into organelles?
Page 3
Answer
So different organelles do not interfere with each other.