Proteins are natural macromolecules. Draw the structural formula of a typical protein. Include three monomer units. You may represent amino acids by formulae of the type drawn below.
Question
Proteins are natural macromolecules. Draw the structural formula of a typical protein. Include three monomer units. You may represent amino acids by formulae of the type drawn below.
Solution 1
To draw the structural formula of a typical protein, we need to understand that proteins are made up of amino acids. Each amino acid consists of an amino group (-NH2), a carboxyl group (-COOH), and a side chain (R group) attached to a central carbon atom.
Step 1: Choose three different amino acids to represent as monomer units in the protein. Let's say we choose alanine, glycine, and leucine.
Step 2: Draw the structural formula of alanine. Alanine has a methyl group (-CH3) as its side chain. The structural formula of alanine can be represented as:
H2N-CH(COOH)-CH3
Step 3: Draw the structural formula of glycine. Glycine has a hydrogen atom (-H) as its side chain. The structural formula of glycine can be represented as:
H2N-CH2-COOH
Step 4: Draw the structural formula of leucine. Leucine has an isobutyl group (-CH2-CH(CH3)2) as its side chain. The structural formula of leucine can be represented as:
H2N-CH(CH2)3-CH(COOH)-(CH3)2
Step 5: Combine the three amino acids in a sequence to form the protein. Connect the amino group of one amino acid to the carboxyl group of the next amino acid, forming peptide bonds. Repeat this process for all three amino acids.
The final structural formula of the protein, including the three monomer units (alanine, glycine, and leucine), would look something like this:
H2N-CH(COOH)-CH3 -NH- CH2-COOH -NH- CH(CH2)3-CH(COOH)-(CH3)2
Please note that this is a simplified representation of a protein structure, and actual proteins can be much more complex with hundreds or thousands of amino acids.
Solution 2
To draw the structural formula of a typical protein, we need to understand that proteins are made up of amino acids. Each amino acid consists of an amino group (-NH2), a carboxyl group (-COOH), and a side chain (R group) attached to a central carbon atom.
Step 1: Choose three different amino acids to represent as monomer units in the protein. Let's say we choose alanine, glycine, and leucine.
Step 2: Draw the structural formula of alanine. Alanine has a methyl group (-CH3) as its side chain. The structural formula of alanine can be represented as:
H2N-CH(CH3)-COOH
Step 3: Draw the structural formula of glycine. Glycine has a hydrogen atom (-H) as its side chain. The structural formula of glycine can be represented as:
H2N-CH2-COOH
Step 4: Draw the structural formula of leucine. Leucine has an isobutyl group (-CH2-CH(CH3)2) as its side chain. The structural formula of leucine can be represented as:
H2N-CH(CH2-CH(CH3)2)-COOH
Step 5: Combine the three structural formulas of alanine, glycine, and leucine to represent a typical protein. The protein can be represented as a chain of amino acids connected by peptide bonds (-CO-NH-). The order of the amino acids in the protein chain will determine its specific sequence and structure.
Note: The structural formulas provided here are simplified representations of amino acids and proteins. In reality, proteins can be much larger and more complex, consisting of hundreds or thousands of amino acids.
Similar Questions
What does the primary structure of a protein refer to?Question 17Select one:a.The noncovalent bonds that hold the protein in a particular shapeb. Whether it is globular or fibrous.c.The amino acid sequence of the protein.
Most of the protein in the body is found as ____________ ____________.2. Proteins are the most diverse in both function and structure out of all organicmolecules because of their diverse ____________.3. Contractile proteins work closely with ____________ proteins.4. ____________ is the iron-containing protein found in blood which moves oxygenfrom the lungs to other parts of the body.5. Enzymes act as ____________ ____________, meaning they affect the speed ofa chemical reaction without being changed itself.6. ____________ amino acids can be created in the body and are not required in thediet.7. Also attached to the alpha carbon is a single ____________ atom and a chemicalgroup denoted by the letter ____.8. Proteins are created by one or more ____________ chains.9. The slightest change in the amino acid sequence can alter the overall____________, and therefore, ____________ of the protein.10. Almost all tertiary structures can be described as ____________, meaninground, or ____________, meaning rod-like.11. The last structural level is the ____________ structure.12. When polypeptide chains unravel and lose their specific shape and thereforelose their function, it is known as ____________.13. When you take in protein through food, it is broken down in the ____________by ____________ into smaller polypeptides for the body to use.14.To determine the amount of protein you should be taking in each day, you mustfirst determine your ideal _________________.
What is the primary structure of a protein?Group of answer choicesIt is the sequence of fatty acids joined together by glycosidic linkages.It is the sequence of glucose units joined together by glycosidic linkages.It is the sequence of amino acids joined together by peptide bonds.It is the sequence of amino acids joined together by glycosidic linkages.
Draw (by hand) the condensed structures of the 20 common amino acids. Classify them according to the following:Nonpolar (hydrophobic)Polar (hydrophilic)BasicAcidicFor each amino acid, give the following:Condensed structureCommon name3-letter symbol1-letter symbol
What happens during the primary structure of protein?*It curls and foldsForms a 3-D shape of proteinDetermined by multiple polypeptide chains.It forms a "bead-on-a-string" linear formation.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.