Protein Review
Proteins are large biomolecules that consist of one or more long chains of amino acid residues. They perform numerous functions such as DNA replication, stimuli response, catalysing metabolic reactiosn and transporting molecules. What do you know about proteins?
Questions and Answers
- 1.
What is the central atom in an Amino Acid?
- A.
Hydrogen
- B.
Carbon
- C.
Oxygen
- D.
Water
- E.
Amino
Correct Answer
B. CarbonExplanation
The central atom in an amino acid is carbon. Amino acids are organic compounds that contain an amino group (-NH2), a carboxyl group (-COOH), and a side chain attached to a central carbon atom. This central carbon atom, also known as the alpha carbon, is crucial in determining the properties and functions of different amino acids. It is responsible for forming covalent bonds with the amino and carboxyl groups, as well as with the side chain, which can vary in structure and determine the specific characteristics of each amino acid.Rate this question:
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- 2.
A_______ is a polymer constructed from a set of just 20 kinds of monomers called Amino Acids?
Correct Answer
ProteinExplanation
A protein is a polymer constructed from a set of just 20 kinds of monomers called amino acids. Proteins play a crucial role in various biological processes and are essential for the structure, function, and regulation of cells and tissues. They are involved in tasks such as catalyzing chemical reactions, transporting molecules, providing structural support, and transmitting signals. The specific sequence and arrangement of amino acids in a protein determine its unique structure and function.Rate this question:
- 3.
What determines a Proteins function?
- A.
Shape
- B.
Taste
- C.
Reactivity
- D.
Number of electrons
- E.
Number of Protein
Correct Answer
A. ShapeExplanation
The shape of a protein determines its function. Proteins are made up of long chains of amino acids that fold into specific shapes. These shapes are crucial for the protein to interact with other molecules and carry out its specific function in the body. Different shapes allow proteins to bind to specific molecules, catalyze chemical reactions, or transport substances across cell membranes. Therefore, the shape of a protein is a key factor in determining its function.Rate this question:
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- 4.
Explain how heat can destroy a Protein.
- 5.
Which of these is NOT a function of Protein
- A.
Defend Body from harmful microorganisms
- B.
Form hair
- C.
Form Muscle
- D.
Eat acids
- E.
Nutrient storage
Correct Answer
D. Eat acidsExplanation
Protein does not have the function of "eating acids". Proteins are essential macromolecules that perform various functions in the body, including defending the body from harmful microorganisms, forming hair, forming muscles, and acting as nutrient storage. However, "eating acids" is not a recognized function of proteins.Rate this question:
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- 6.
The_group is what makes amino acids different.
Correct Answer
RExplanation
The letter "R" in this context refers to the side chain of an amino acid. The side chain is the part of the amino acid that varies and gives each amino acid its unique properties. It can be a simple hydrogen atom or a complex structure containing various functional groups. Therefore, the side chain, or "R group," is what makes amino acids different from one another.Rate this question:
- 7.
___________ is the chain of amino acids linked together by cells to create protein.
Correct Answer
PolypeptideExplanation
A polypeptide is a chain of amino acids that are linked together by cells to form a protein. Proteins are essential for various biological functions and are made up of one or more polypeptide chains. These chains are formed through a process called protein synthesis, where cells link amino acids together in a specific sequence dictated by the genetic code. The resulting polypeptide chain then folds into a specific three-dimensional structure, which determines the protein's function in the body. Therefore, polypeptides are the building blocks of proteins.Rate this question:
- 8.
How many amino Acids are there?
- 9.
What determines the 3-D shape of a protein molecule?
- 10.
When a protein loses its shape it also loses what?
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Current Version
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Mar 22, 2023Quiz Edited by
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Feb 09, 2010Quiz Created by
Swdl2012
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