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APHY 201 Lab Midterm Study Guide
Questions and Correct Answers/ Latest
Update / Already Graded
When will the Lab Midterm Exam be given?
Ans: In class on Week 5 of the semester, July 11 or 12, 2025.
What should students review for the Lab Midterm Exam?
Ans: The study resources, including videos, found in the lab
module in IvyLearn.
What are the six most common elements in our body?
Ans: Carbon (C), Hydrogen (H), Nitrogen (N), Oxygen (O) ,
Phosphorus (P), and Sulfur (S) - collectively known as CHNOPS.
What is the difference between a molecular formula and a structural
formula?
Ans: A molecular formula shows the number and types of
atoms, while a structural formula shows how those atoms are
arranged.
How are covalent bonds represented in a structural formula?
All rights reserved © 2025/ 2026 |
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Ans: Single, double, and triple bonds are represented by one
line, two lines, and three lines, respectively.
What is the molecular and structural formula of glucose?
Ans: Glucose has the molecular formula C6H12O6 and its
structural formula shows the arrangement of these atoms.
What is dehydration synthesis?
Ans: A process where two molecules are joined together with
the removal of water.
How are disaccharides and polysaccharides formed from
monosaccharides?
Ans: They are formed via dehydration synthesis reactions.
What distinguishes a saturated fatty acid from an unsaturated fatty
acid?
Ans: Saturated fatty acids have no double bonds between
carbon atoms, while unsaturated fatty acids have one or more
double bonds.
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How is a triglyceride formed?
Ans: A triglyceride is formed from glycerol and fatty acids via
dehydration synthesis.
What is a phospholipid?
Ans: A phospholipid is similar to a triglyceride but contains a
phosphate group in place of one of the fatty acids.
What are the basic components of nucleic acids?
Ans: Ribose or deoxyribose, a phosphate group, and a
nitrogenous base (adenine, thymine, cytosine, or guanine).
What are the components of ATP?
Ans: Adenine base, ribose sugar, and three phosphate groups.
What are the components of an amino acid?
Ans: An amine group, a carboxyl group, and an R group, all
attached to a central carbon.
How is a polypeptide formed from amino acids?
All rights reserved © 2025/ 2026 |
APHY 201 Lab Midterm Study Guide
Questions and Correct Answers/ Latest
Update / Already Graded
When will the Lab Midterm Exam be given?
Ans: In class on Week 5 of the semester, July 11 or 12, 2025.
What should students review for the Lab Midterm Exam?
Ans: The study resources, including videos, found in the lab
module in IvyLearn.
What are the six most common elements in our body?
Ans: Carbon (C), Hydrogen (H), Nitrogen (N), Oxygen (O) ,
Phosphorus (P), and Sulfur (S) - collectively known as CHNOPS.
What is the difference between a molecular formula and a structural
formula?
Ans: A molecular formula shows the number and types of
atoms, while a structural formula shows how those atoms are
arranged.
How are covalent bonds represented in a structural formula?
All rights reserved © 2025/ 2026 |
, Page |2
Ans: Single, double, and triple bonds are represented by one
line, two lines, and three lines, respectively.
What is the molecular and structural formula of glucose?
Ans: Glucose has the molecular formula C6H12O6 and its
structural formula shows the arrangement of these atoms.
What is dehydration synthesis?
Ans: A process where two molecules are joined together with
the removal of water.
How are disaccharides and polysaccharides formed from
monosaccharides?
Ans: They are formed via dehydration synthesis reactions.
What distinguishes a saturated fatty acid from an unsaturated fatty
acid?
Ans: Saturated fatty acids have no double bonds between
carbon atoms, while unsaturated fatty acids have one or more
double bonds.
All rights reserved © 2025/ 2026 |
, Page |3
How is a triglyceride formed?
Ans: A triglyceride is formed from glycerol and fatty acids via
dehydration synthesis.
What is a phospholipid?
Ans: A phospholipid is similar to a triglyceride but contains a
phosphate group in place of one of the fatty acids.
What are the basic components of nucleic acids?
Ans: Ribose or deoxyribose, a phosphate group, and a
nitrogenous base (adenine, thymine, cytosine, or guanine).
What are the components of ATP?
Ans: Adenine base, ribose sugar, and three phosphate groups.
What are the components of an amino acid?
Ans: An amine group, a carboxyl group, and an R group, all
attached to a central carbon.
How is a polypeptide formed from amino acids?
All rights reserved © 2025/ 2026 |
