Which structure of protein is responsible for its function?

Which structure of protein is responsible for its function?

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.

What controls the protein structure?

Because amino acid sequence determines protein structure and structure dictates biochemical function, proteins that share a similar amino acid sequence usually perform similar biochemical functions, even when they are found in distantly related organisms.

Which is one function of a protein macromolecule?

Types of biological macromolecules

Biological macromolecule Building blocks Functions
Proteins Amino acids Provide cell structure, send chemical signals, speed up chemical reactions, etc
Nucleic acids Nucleotides Store and pass on genetic information
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What is the function of protein molecules?

Protein has many roles in your body. It helps repair and build your body’s tissues, allows metabolic reactions to take place and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.

How does the structure of DNA determine the structure and function of a protein?

DNA carries the genetic information for making proteins. The base sequence determines amino acid sequence in protein. Messenger RNA (mRNA) is a molecule which carries a copy of the code from the DNA, in the nucleus, to a ribosome, where the protein is assembled from amino acids.

Why is tertiary structure important when describing the function of proteins?

The tertiary structure is the structure at which polypeptide chains become functional. At this level, every protein has a specific three-dimensional shape and presents functional groups on its outer surface, allowing it to interact with other molecules, and giving it its unique function.

What type of protein controls what goes in and out of the cell?

The cell membrane controls what goes in and out by having protein channels that act like funnels in some cases and pumps in other cases. Passive transport does not require energy molecules and happens when a funnel opens in the membrane, letting molecules flow through.

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How do the structures of biological macromolecules determine their properties and functions?

The Three-Dimensional Structure of Biological Macromolecules Determines How They Function. It is the three-dimensional shape of proteins and nucleic acids that endows them with their biological activities.

What are the physiological and structural roles of proteins?

Proteins are biopolymeric structures composed of amino acids, of which there are 20 commons found in biological chemistry. Proteins serve as structural support, biochemical catalysts, hormones, enzymes, building blocks, and initiators of cellular death.

What is the function of protein in cellular membrane?

Membrane proteins can allow hydrophilic molecules to pass through the cell membrane. Transport membrane proteins come in many forms, and some require energy to change shape and actively move molecules and other substances across the cell membrane. They do this by releasing ATP to use as an energy source.

Why is structure important for the function of a protein?

Proteins are very important molecules in our cells.They are involved in virtually all cell functions. Each protein within the body has a specific function. Some proteins are involved in structural support, while others are involved in bodily movement, or in defense against germs. Proteins vary in structure as well as function.

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What are the 4 stages of protein structure?

There are four levels of protein structure: primary, secondary, tertiary, and quaternary. These levels also reflect their temporal sequence. Proteins are synthesized as a primary sequence and then fold into secondary → tertiary → and quaternary structures.

What determines the structure of a protein?

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. The sequence of a protein is unique to that protein, and defines the structure and function of the protein.

What are the four major functions of proteins?

The four roles of proteins are to help provide structure, transport other molecules around the body, facilitate essential biochemical reactions in the body and act as channels for the passage of important molecules to and from the cells. The broad protein types are enzymes and structural, transport and channel proteins.