Proteins Flashcards
What are the building blocks of proteins?
Amino acids
True or False: Proteins are one of the four main types of macromolecules.
True
Which type of bond links amino acids together in a protein?
Peptide bond
Fill in the blank: Proteins are essential for _________ in the body.
growth and repair
What is the primary structure of a protein?
The linear sequence of amino acids
What determines a protein’s function?
Its three-dimensional structure
Multiple choice: Which of the following is NOT a function of proteins? A) Enzymatic activity B) Structural support C) Energy storage D) Hormonal regulation
C) Energy storage
True or False: All proteins are enzymes.
False
What are the two main types of protein structures?
Fibrous and globular
What is denaturation in the context of proteins?
The process where proteins lose their structure due to external stress or conditions
Fill in the blank: The sequence of amino acids in a protein is determined by ________.
the gene encoding the protein
What are the four levels of protein structure?
Primary, secondary, tertiary, and quaternary
Multiple choice: Which of the following amino acids is essential? A) Glycine B) Leucine C) Alanine D) Serine
B) Leucine
True or False: Proteins can act as antibodies.
True
What is the role of enzymes in biological processes?
To catalyze chemical reactions
Fill in the blank: Hemoglobin is an example of a _________ protein.
transport
What interaction stabilizes the secondary structure of proteins?
Hydrogen bonds
Multiple choice: Which structure is characterized by alpha helices and beta sheets? A) Primary B) Secondary C) Tertiary D) Quaternary
B) Secondary
What is the significance of the quaternary structure of proteins?
It involves the assembly of multiple polypeptide chains into a functional protein.
True or False: Proteins can serve as hormones.
True
What are chaperone proteins?
Proteins that assist in the proper folding of other proteins.
Fill in the blank: The specific sequence of amino acids in a protein is referred to as its ________.
primary structure
What is the role of the R group in amino acids?
To determine the properties and identity of the amino acid.
Multiple choice: Which macromolecule is primarily responsible for genetic information? A) Carbohydrates B) Lipids C) Proteins D) Nucleic acids
D) Nucleic acids
True or False: Proteins can be denatured by changes in temperature and pH.
True
What is the function of structural proteins?
To provide support and shape to cells and tissues.
