Chemistry Of Life Flashcards
(27 cards)
What are the four major types of macromolecules in living organisms?
Carbohydrates, lipids, proteins, and nucleic acids.
True or False: Enzymes are a type of lipid.
False.
Fill in the blank: The building blocks of proteins are called __________.
amino acids.
What is the primary function of carbohydrates in the body?
To provide energy.
Which macromolecule is responsible for storing and transmitting genetic information?
Nucleic acids.
Multiple Choice: Which of the following is NOT a function of proteins?
A) Catalyzing reactions
B) Storing energy
C) Providing structure
D) Transporting molecules
B) Storing energy.
What type of bond forms between amino acids in a protein?
Peptide bond.
True or False: Lipids are soluble in water.
False.
What is the role of nucleotides in nucleic acids?
They serve as the building blocks.
Fill in the blank: The process by which enzymes speed up chemical reactions is called __________.
catalysis.
What is the main structural component of cell membranes?
Phospholipids.
Multiple Choice: Which of the following is a polysaccharide?
A) Glucose
B) Starch
C) Fructose
D) Sucrose
B) Starch.
What is the role of ATP in cellular processes?
It acts as the primary energy currency.
True or False: All enzymes are proteins.
True.
What kind of reaction occurs when monomers join to form a polymer?
Dehydration synthesis.
Fill in the blank: The two strands of DNA are held together by __________ bonds.
hydrogen.
What is the difference between saturated and unsaturated fats?
Saturated fats have no double bonds between carbon atoms, while unsaturated fats have one or more double bonds.
Multiple Choice: Which macromolecule is primarily involved in immune responses?
A) Carbohydrates
B) Nucleic acids
C) Proteins
D) Lipids
C) Proteins.
What is the basic unit of life?
The cell.
True or False: RNA is double-stranded.
False.
Fill in the blank: The process of breaking down glucose to produce energy is called __________.
glycolysis.
What role do enzymes play in biological reactions?
They lower the activation energy.
Multiple Choice: Which of the following is a characteristic of lipids?
A) They are hydrophilic
B) They are polar
C) They store energy
D) They are soluble in water
C) They store energy.
What is the term for the genetic code carried by DNA?
Genetic information.
