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LQB182 Lectorial 2 Proteins, Carbs, and Fats Answers

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LQB182 Lectorial 2 Proteins, Carbs, and Fats Answers Proteins Here is the amino acid Cysteine: Q1. Circle the “R” group of this amino acid. R group is the functional group of an amino acid that gives it its unique/specific physiochemical properties. Q2. Put a box around the amide group of ...

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  • November 3, 2022
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  • 2022/2023
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LQB182 LECTORIAL 2 PROTEINS, CABS AND FATS ANSWERS


LQB182 Lectorial 2 Proteins, Carbs, and Fats Answers

Proteins

Here is the amino acid Cysteine:




Q1. Circle the “R” group of this amino acid. R group is the functional group of an amino acid that gives it its
unique/specific physiochemical properties.

Q2. Put a box around the amide group of the amino acid. The amide group is where we get the amino part of amino
acid - the amide (NH2) / amine (NH3+) group contains the nitrogen in the amino acid…very important in cell biology as
we will see in future lectures.



Q3-4. When a polypeptide chain (protein polymer) is formed, two amino acids are linked together. What is the name
of this new bond AND between which two functional groups (i.e. NH 2, COOH, H, or R group) of adjacent amino acids
is the new bond create?

Peptide bond. Forms between the amide and carboxyl group (i.e. NH 2 of amino acid 1 and COOH of amino acid 2)




This study source was downloaded by 100000844708667 from CourseHero.com on 11-03-2022 10:51:41 GMT -05:00


https://www.coursehero.com/file/91954334/LQB182-Lectorial-2-Proteins-Carbs-and-Fats-Answerspdf/

, Q5. The 3D (three dimensional) structure of a protein is referred to as the _____________ structure.

Tertiary structure. Amino acid sequence is primary. Secondary structures are alpha helices and beta-pleated sheets.
Quaternary are multiple 3D proteins integrated together.



Q6. What are four different functions of proteins in the cell? Can you give an example of each?




This study source was downloaded by 100000844708667 from CourseHero.com on 11-03-2022 10:51:41 GMT -05:00


https://www.coursehero.com/file/91954334/LQB182-Lectorial-2-Proteins-Carbs-and-Fats-Answerspdf/

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