Chapter 1: Introduction to Biochemistry
Which of the following macromolecules is not a major type of biomolecule?
A) Carbohydrates
B) Lipids
C) Nucleic acids
D) Vitamins
Answer: D) Vitamins
What is the primary function of proteins in the cell?
,A) Energy storage
B) Information storage
C) Catalysis of biochemical reactions
D) Cell membrane structure
Answer: C) Catalysis of biochemical reactions
Which of the following is an example of a carbohydrate?
A) DNA
B) Enzyme
C) Glucose
D) Phospholipid
Answer: C) Glucose
Chapter 2: Water and pH
What property of water allows it to act as a solvent for many biological molecules?
A) High boiling point
B) High specific heat
C) Polarity
D) Low density in solid form
Answer: C) Polarity
What is the pH of a neutral solution at 25°C?
A) 0
B) 7
C) 14
D) 1
Answer: B) 7
Which of the following is a strong acid?
A) Acetic acid
B) Carbonic acid
C) Hydrochloric acid
, D) Citric acid
Answer: C) Hydrochloric acid
Chapter 3: Amino Acids and Proteins
Which part of an amino acid varies between different amino acids?
A) Amino group
B) Carboxyl group
C) Side chain (R group)
D) Hydrogen atom
Answer: C) Side chain (R group)
Which structure level of protein is characterized by the alpha-helix and beta-pleated
sheet formations?
A) Primary structure
B) Secondary structure
C) Tertiary structure
D) Quaternary structure
Answer: B) Secondary structure
What type of bond is responsible for stabilizing the secondary structure of proteins?
A) Disulfide bond
B) Ionic bond
C) Hydrogen bond
D) Covalent bond
Answer: C) Hydrogen bond
Chapter 4: Enzymes
What is the role of an enzyme in a biochemical reaction?
A) It increases the activation energy required
B) It acts as a substrate
C) It decreases the activation energy and speeds up the reaction
D) It changes the equilibrium of the reaction
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Alvon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
