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#1 #2 но но + + H,N-C H3N-C CH2 CH2 ČH CH; CH2 CH3 NH2 Both #1 and #2 Neither amino acid has a hydrophobic R-group # 2 # 1

#1 #2 но но + + H,N-C H3N-C CH2 CH2 ČH CH; CH2 CH3 NH2 Both #1 and #2 Neither amino acid has a hydrophobic R-group # 2 # 1

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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In the image below, there are the structures of two amino acids. Which of them has an R-group that is hydrophilic? A) Both #1 and #2 B) Neither amino acid has a hydrophobic R-group C) #2 D) #1 .
The image displays the structures of two amino acids labeled as #1 and #2. The task is to determine which amino acid has an R group that is hydrophilic. **Amino Acid #1:** - Structure: - Central carbon (C) bonded to: - A hydrogen (H) - An amino group (H₃N⁺) - A carboxyl group (COO⁻) - An R group consisting of two CH₃ (methyl) groups attached to a CH (methine), connected further to a CH₂ (methylene). **Amino Acid #2:** - Structure: - Central carbon (C) bonded to: - A hydrogen (H) - An amino group (H₃N⁺) - A carboxyl group (COO⁻) - An R group consisting of a CH₂ (methylene) followed by another CH₂, and finally, an amide group (CONH₂). **Question:** "Which of them has an R group that is hydrophilic?" **Options:** - O #1 - O #2 - O Both #1 and #2 - O Neither amino acid has a hydrophobic R group **Explanation:** - Amino Acid #2 has an amide group (CONH₂) which is typically hydrophilic due to the polar nature of the amide bond. - Amino Acid #1, with its methyl groups, is more likely to be hydrophobic. Thus, #2 can be considered hydrophilic due to the presence of its polar amide group.
Transcribed Image Text:The image displays the structures of two amino acids labeled as #1 and #2. The task is to determine which amino acid has an R group that is hydrophilic. **Amino Acid #1:** - Structure: - Central carbon (C) bonded to: - A hydrogen (H) - An amino group (H₃N⁺) - A carboxyl group (COO⁻) - An R group consisting of two CH₃ (methyl) groups attached to a CH (methine), connected further to a CH₂ (methylene). **Amino Acid #2:** - Structure: - Central carbon (C) bonded to: - A hydrogen (H) - An amino group (H₃N⁺) - A carboxyl group (COO⁻) - An R group consisting of a CH₂ (methylene) followed by another CH₂, and finally, an amide group (CONH₂). **Question:** "Which of them has an R group that is hydrophilic?" **Options:** - O #1 - O #2 - O Both #1 and #2 - O Neither amino acid has a hydrophobic R group **Explanation:** - Amino Acid #2 has an amide group (CONH₂) which is typically hydrophilic due to the polar nature of the amide bond. - Amino Acid #1, with its methyl groups, is more likely to be hydrophobic. Thus, #2 can be considered hydrophilic due to the presence of its polar amide group.
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