60 Questions
Which of the following is NOT one of the four main types of macromolecules?
Nucleic acids
What is the most common form of lipids?
Triglycerides
How many levels of structure do proteins have?
Four
Which of the following is an example of a protein with four peptide chains?
Hemoglobin
What is the role of hemoglobin?
Transporting oxygen
Which of the following is a polysaccharide used for energy storage in animals?
Glycogen
Which of the following is a structural component of carbohydrates found in plants?
Starch
Which of the following is true about lipids?
They are larger and more complex than carbohydrates
Which of the following is a function of phospholipids?
Structural component of cell membranes
Which of the following is true about proteins?
They are composed of polymers called polypeptides
Which macromolecule is used for energy storage and structural support?
Carbohydrates
Which type of lipid is the most common and is made up of three fatty acids and a glycerol molecule?
Triglycerides
Which type of macromolecule is made up of amino acids and is used for structural support, movement, and enzymatic activity?
Proteins
What occurs when a protein loses its shape and function due to changes in pH or temperature?
Denaturation
Which type of nucleic acid is double-stranded and stores genetic information?
DNA
Which of the following is true about peptides?
Peptides are made up of amino acids.
What determines the function of a protein?
The shape and size of the protein.
Which level of protein structure is responsible for the overall 3D shape of the protein?
Tertiary structure
What is the primary structure of a protein?
The linear sequence of amino acids.
What is an example of how a slight change in amino acids can affect the function of a protein?
Hemoglobin production
Which elements attach to carbon through covalent bonds to form the primary framework for molecules?
Oxygen, nitrogen, sulfur, phosphorus, and hydrogen
What are hydrocarbons formed by?
Covalent bonds between carbon and hydrogen atoms
What are isomers?
Molecules with the same molecular or variable formulas but constructed in different ways
What are disaccharides formed by?
Linking two monosaccharides through dehydration synthesis
What are polysaccharides used for in animals and plants?
Energy storage
Which of the following is true about RNA and DNA?
RNA has thymine while DNA has uracil
Who were awarded the Nobel Prize for determining the structure of DNA?
James Watson and Francis Crick
What is the function of RNA?
RNA translates genetic information from DNA into proteins
How do mutations in DNA affect proteins?
Mutations in DNA can affect the structure and function of proteins
Why is understanding molecular complexity important?
Understanding molecular complexity is crucial for understanding molecular pathways
Which of the following is true about isomers?
They have the same chemical formula but different structures
Which of the following is NOT a function of lipids?
Enzymatic activity
Which of the following is true about denaturation?
It occurs when a protein loses its shape and function
Which of the following is NOT one of the four main types of macromolecules?
Nucleic acids
Which of the following elements attach to carbon through covalent bonds to form the primary framework for molecules?
Hydrogen
Which of the following is true about the primary structure of proteins?
It is the linear sequence of amino acids.
What is the function of hemoglobin?
To transport oxygen.
Which of the following is true about sickle cell anemia?
It is caused by a change in the primary structure of hemoglobin.
What is the most common form of lipids?
Triglycerides
What is the role of nucleic acids?
To store information for cell growth and reproduction.
Which of the following is NOT a type of monosaccharide?
Sucrose
Which of the following is a function of carbohydrates in organisms?
Enzymatic activity
What is the difference between structural isomers and stereoisomers?
Structural isomers have the same chemical formula but differ in structure, while stereoisomers differ in orientation.
What are disaccharides formed by?
Linking two monosaccharides through dehydration synthesis
Which of the following is a structural component of carbohydrates?
Glycogen
Which of the following is true about the difference between RNA and DNA?
DNA is a single helix and translates genetic information from RNA into proteins.
Who were awarded the Nobel Prize for determining the structure of DNA?
James Watson and Francis Crick
What is the function of RNA?
RNA translates genetic information from DNA into proteins, which are vital to cell function.
How do mutations in DNA affect proteins?
Mutations in DNA can change the structure and function of proteins.
Why is understanding molecular complexity important?
Molecular complexity is directly related to molecular function.
Which of the following is true about polysaccharides?
Polysaccharides are used for energy storage.
Which of the following is true about lipids?
Lipids are smaller and simpler than carbohydrates.
Which of the following is true about triglycerides?
Triglycerides have three fatty acids, a carboxyl group, and a glycerol group.
Which of the following is true about phospholipids?
Phospholipids are important for the structure of cell membranes.
Which of the following is true about steroids?
Cholesterol is a well-known steroid that is required to make sex hormones.
Which of the following is NOT a type of macromolecule?
Carbohydrates
Which statement about lipids is correct?
Lipids can form cell membranes.
Which of the following is true about proteins?
Proteins are made up of amino acids.
Which level of protein structure is responsible for the overall 3D shape of the protein?
Tertiary structure
What is the function of RNA?
RNA translates genetic information from DNA into proteins.
Test your knowledge of polysaccharides and their role in energy storage and structural components of carbohydrates. Explore the differences between polysaccharides and monosaccharides, and learn about the specific polysaccharides used for energy storage in animals and plants.
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