What are the four main types of biological molecules?
Carbohydrates, lipids, proteins, and nucleic acids.
True or False: Enzymes are a type of lipid.
False.
Fill in the blank: The basic building blocks of proteins are called ______.
amino acids.
Which type of bond forms between amino acids in a protein?
Peptide bond.
Multiple choice: Which of the following is a polysaccharide? A) Glucose B) Fructose C) Glycogen D) Sucrose
C) Glycogen.
What is the primary function of nucleic acids?
To store and transmit genetic information.
True or False: Saturated fats contain one or more double bonds in their fatty acid chains.
False.
What is the structural formula of glucose?
C6H12O6.
Multiple choice: Which of the following is not a function of proteins? A) Catalysis B) Storage C) Energy storage D) Structural support
C) Energy storage.
Fill in the blank: The process by which enzymes speed up chemical reactions is called ______.
catalysis.
What are the two main types of nucleic acids?
DNA and RNA.
True or False: Lipids are soluble in water.
False.
What is the role of cholesterol in cell membranes?
To maintain membrane fluidity.
Multiple choice: Which of the following is a characteristic of enzymes? A) They are consumed in reactions B) They lower activation energy C) They change the equilibrium of reactions D) They are allosteric inhibitors
B) They lower activation energy.
Fill in the blank: The sequence of amino acids in a protein determines its ______.
structure and function.
What type of reaction forms a peptide bond?
Dehydration synthesis.
True or False: RNA is typically double-stranded.
False.
What are triglycerides composed of?
Glycerol and three fatty acids.
Multiple choice: Which of the following is a function of carbohydrates? A) Genetic information B) Energy storage C) Catalysis D) Structural components of membranes
B) Energy storage.
Fill in the blank: The primary structure of a protein is determined by its ______ sequence.
amino acid.
What is the function of ribosomes in cells?
Protein synthesis.
True or False: DNA is made up of nucleotides containing ribose sugar.
False.
What is the role of enzymes in metabolic pathways?
To catalyze and regulate biochemical reactions.
Multiple choice: Which of the following molecules is considered a macromolecule? A) Water B) Amino acid C) Glucose D) DNA
D) DNA.
