Which of the following is the strongest evidence that protein structure and function are correlated?

Terms in this set (14) Which of the following is the strongest evidence that protein structure and function are correlated? Denatured (unfolded) proteins do not function normally. Proteins function best at certain temperatures.

How do we know that protein structure and function are correlated?

Protein function is directly related to the structure of that protein. A protein's specific shape determines its function. If the three-dimensional structure of the protein is altered because of a change in the structure of the amino acids, the protein becomes denatured and does not perform its function as expected.

What is the correlation between the structure and the function of the affected protein?

The unique amino acid sequence of a protein is reflected in its unique folded structure. This structure, in turn, determines the protein's function. This is why mutations that alter amino acid sequence can affect the function of a protein.

Which of the following observations is the strongest argument in favor of the hypothesis that protein structure and function are correlated?

Which of the following observations is the strongest argument in favor of the hypothesis that protein structure and function are correlated? Denatured (unfolded) proteins do not function normally. HIV is the virus that causes AIDS.

Which of the following has the greatest influence on the structure of a protein?

Which part of an amino acid has the greatest influence on the overall structure of a protein? The R group. A mutation that alters a single amino acid within a protein can alter: The primary, secondary, and tertiary levels of a protein structure.

A Level Biology Revision "Protein Structure 2"

Which of the following determines the function of a protein molecule?

A central carbon atom is bound to an amino group, carboxyl group, a side chain, and a hydrogen atom. Which of the following determines the function of a protein molecule? It's shape.

What is protein structure and function?

Proteins are built as chains of amino acids, which then fold into unique three-dimensional shapes. Bonding within protein molecules helps stabilize their structure, and the final folded forms of proteins are well-adapted for their functions.

What is the highest level of structure in the protein?

Quaternary (4˚) Structure

Quaternary structure in proteins is the most intricate degree of organization still considered a single molecule.

Which of the following would be the best definition of the primary structure of a protein?

The answer is B. A protein's primary structure is known as a polypeptide, which is a chain of amino acids.

Why is the structure of proteins so important?

Why does a protein's shape matter? A protein's structure allows it to perform its job. For instance, antibodies are shaped like a Y. This helps these immune-system proteins bind to foreign molecules such as bacteria or viruses with one end while recruiting other immune-system proteins with the other.

What determines a protein's function quizlet?

What determines a protein's function? - The sequence of amino acids. - The three-dimensional shape of the folded protein. Heating a protein can cause it to denature, or unfold. What do you think would happen to the function of a protein in a denatured state?

What are the factors that affects protein?

What structural level of proteins is functional why quizlet?

What structural level of proteins is functional? Why? The tertiary structure is functional as it possesses the geometric shape showing the necessary loops and bends.

How do you determine the similarity of protein structure?

Currently, the structural similarity between two proteins is measured by the root-mean-square-deviation (RMSD) in their best-superimposed atomic coordinates.

Which of the following must be true about the amino acids that make up the protein?

Which of the following must be true about the amino acids that make up the protein? Amino acids with charged side groups are in contact with the phosphate region of the cell membrane. Amino acids with charged side groups are hydrophilic.

How does the shape of a protein relate to its function quizlet?

The shape of a protein determines its specific function. If a protein's shape is altered, it can no longer function. loses its function. Proteins can be denatured by changes in salt concentration, pH, or by high heat.

Which of the following statement is true about primary structure of protein?

Primary structure of protein refers to the linear chain of amino acids produced by linking together of amino acids through peptide bonds. The sequence of amino acids in the primary structure is determined by the sequence of nucleotides in nucleic acid acting as genetic material.

What is the functional level of protein structure?

The four levels of protein structure are primary, secondary, tertiary, and quaternary. It is helpful to understand the nature and function of each level of protein structure in order to fully understand how a protein works.

What level of protein structure is considered functional?

The tertiary structure of the protein

The most important feature of tertiary structures is the presence of conserved regions with similar functions known as functional domains.

Which of the following can affect protein structure?

The main forces that affect structure are electrostatic forces, hydrogen bonding forces, hydrophobic forces, and disulfide bonds. Each of these affect protein structure in different ways.

Which of the following are linked together to form proteins?

A protein molecule is made from a long chain of these amino acids, each linked to its neighbor through a covalent peptide bond (Figure 3-1). Proteins are therefore also known as polypeptides. Each type of protein has a unique sequence of amino acids, exactly the same from one molecule to the next.

What protein structures form when amino acid sequences link together?

The overall three-dimensional structure of a polypeptide is called its tertiary structure. The tertiary structure is primarily due to interactions between the R groups of the amino acids that make up the protein.

What determines protein structure?

The primary structure of a protein is determined by the gene corresponding to the protein. A specific sequence of nucleotides in DNA is transcribed into mRNA, which is read by the ribosome in a process called translation.

Which of the following would be true of any given protein molecule?

Which of the following would be true of any given protein molecule? Its polypeptide sequence would be able to be deduced from the nucleotide sequence of the DNA molecule that serves as the gene for the protein. It would contain twice as many peptide bonds as amino acid residues.

Which part of the protein molecule is responsible for function and activity of the proteins?

Peptide bond responsible for function and activity of the proteins tas it link amino acid residues in a polypeptide are formed in a condensation reaction between the acidic carboxyl group of one amino acid and the basic amino group of another amino acid.