Biology 151 Exam 1 UW Madison Questions and Answers |Fall
2025/2026 Update | 100% Correct Latest
Question 1
What is CHOPNS and what does it stand for?
Correct Answer
It is what 96% (CHON) of the mass of all living creatures are made of.
It stands for Carbon, Hydrogen, Oxygen, Phosphorus, Nitrogen and Sulfur
Question 2
What are examples of strong bonds?
Correct Answer
Covalent and Ionic
Question 3
What are examples of weak bonds?
Correct Answer
Van Der Waals and hydrogen bonds
Page 1 of 48
,Question 4
What are the four main types of macromolecules?
Correct Answer
Carbohydrates, lipids, proteins and nucleic acids
Question 5
Which macromolecules always contain carbon?
Correct Answer
All of them
Question 6
Which macromolecules always contain phosphorus?
Correct Answer
lipids and nucleic acids
Question 7
which macromolecules always contain nitrogen?
Correct Answer
proteins and nucleic acids
Page 2 of 48
,Question 8
which macromolecules frequently contain sulfur?
Correct Answer
proteins
Question 9
what is a covalent bond?
Correct Answer
bond formed by a shared pair of electrons holding two atoms together (two pairs equals double bond)
Question 10
What is an ionic bond?
Correct Answer
The association of two atoms resulting from the attraction of opposite charges.
Question 11
What is a hydrogen bond?
Correct Answer
the attraction between a hydrogen atom with a partial positive charge and another atom with a partial negative charge
(electronegative)
Page 3 of 48
, Question 12
cohesion
Correct Answer
Attraction between molecules; one consequence of cohesion is high surface tension.
Question 13
organic molecule
Correct Answer
A carbon-containing molecule
Question 14
Proteins and what they are a polymer of
Correct Answer
provide structural support and act as catalysts that facilitate chemical reactions
amino acids
Question 15
Nucleic acids and what they are a polymer of
Correct Answer
encode and transmit genetic information.
nucleotides
Page 4 of 48
2025/2026 Update | 100% Correct Latest
Question 1
What is CHOPNS and what does it stand for?
Correct Answer
It is what 96% (CHON) of the mass of all living creatures are made of.
It stands for Carbon, Hydrogen, Oxygen, Phosphorus, Nitrogen and Sulfur
Question 2
What are examples of strong bonds?
Correct Answer
Covalent and Ionic
Question 3
What are examples of weak bonds?
Correct Answer
Van Der Waals and hydrogen bonds
Page 1 of 48
,Question 4
What are the four main types of macromolecules?
Correct Answer
Carbohydrates, lipids, proteins and nucleic acids
Question 5
Which macromolecules always contain carbon?
Correct Answer
All of them
Question 6
Which macromolecules always contain phosphorus?
Correct Answer
lipids and nucleic acids
Question 7
which macromolecules always contain nitrogen?
Correct Answer
proteins and nucleic acids
Page 2 of 48
,Question 8
which macromolecules frequently contain sulfur?
Correct Answer
proteins
Question 9
what is a covalent bond?
Correct Answer
bond formed by a shared pair of electrons holding two atoms together (two pairs equals double bond)
Question 10
What is an ionic bond?
Correct Answer
The association of two atoms resulting from the attraction of opposite charges.
Question 11
What is a hydrogen bond?
Correct Answer
the attraction between a hydrogen atom with a partial positive charge and another atom with a partial negative charge
(electronegative)
Page 3 of 48
, Question 12
cohesion
Correct Answer
Attraction between molecules; one consequence of cohesion is high surface tension.
Question 13
organic molecule
Correct Answer
A carbon-containing molecule
Question 14
Proteins and what they are a polymer of
Correct Answer
provide structural support and act as catalysts that facilitate chemical reactions
amino acids
Question 15
Nucleic acids and what they are a polymer of
Correct Answer
encode and transmit genetic information.
nucleotides
Page 4 of 48
