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The following enzyme has two binding sites for adenosine triphosphate (ATP), which are indicated on the Figure. Which of the following correctly describes the binding site of ATP on the periphery of the enzyme? ATP at regulatory site Select one: When ATP binds here, the reaction rate slows dramatically Fructose-6- ATP at phosphate at active site active site scrambled regulation uncompetitive inhibition competitive inhibition allosteric negative regulation 5000

The following enzyme has two binding sites for adenosine triphosphate (ATP), which are indicated on the Figure. Which of the following correctly describes the binding site of ATP on the periphery of the enzyme? ATP at regulatory site Select one: When ATP binds here, the reaction rate slows dramatically Fructose-6- ATP at phosphate at active site active site scrambled regulation uncompetitive inhibition competitive inhibition allosteric negative regulation 5000

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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The following enzyme has two binding sites for adenosine triphosphate (ATP), which are indicated on the Figure. Which of the following correctly describes the binding site of ATP on the periphery of the enzyme? **Image Description:** The image shows a 3D structure of an enzyme with two distinct ATP binding sites and an active site. The components are labeled as follows: 1. **ATP at regulatory site:** Indicated on the left-hand side of the enzyme, with a caption "When ATP binds here, the reaction rate slows dramatically." 2. **Fructose-6-phosphate at active site:** Situated in the middle of the enzyme. 3. **ATP at active site:** Located on the right-hand side of the enzyme. **Question:** Select one: - scrambled regulation - uncompetitive inhibition - competitive inhibition - allosteric negative regulation
Transcribed Image Text:The following enzyme has two binding sites for adenosine triphosphate (ATP), which are indicated on the Figure. Which of the following correctly describes the binding site of ATP on the periphery of the enzyme? **Image Description:** The image shows a 3D structure of an enzyme with two distinct ATP binding sites and an active site. The components are labeled as follows: 1. **ATP at regulatory site:** Indicated on the left-hand side of the enzyme, with a caption "When ATP binds here, the reaction rate slows dramatically." 2. **Fructose-6-phosphate at active site:** Situated in the middle of the enzyme. 3. **ATP at active site:** Located on the right-hand side of the enzyme. **Question:** Select one: - scrambled regulation - uncompetitive inhibition - competitive inhibition - allosteric negative regulation
**Surfactant Classification** **Question:** What type of surfactant is this? **Image Description:** The given image displays a molecular structure of a surfactant. The structure is divided into two main parts: 1. A hydrophobic tail consisting of a long hydrocarbon chain with a double bond (indicating unsaturation) near the middle of the chain. 2. A hydrophilic head featuring a complex group with multiple oxygen atoms (including carbonyl groups and an ester), a phosphorus atom bonded to four oxygen atoms, and a positively charged nitrogen atom (indicated by \( \text{N}^+ \)), which is a part of an ammonium group. **Question Section:** Below the molecular structure, there is a set of multiple-choice options for identifying the type of surfactant. The options are: - **zwitterionic** - **cationic** - **non-ionic** - **anionic** **Detailed Explanation:** - **Zwitterionic:** Surfactants that contain both positive and negative charges. - **Cationic:** Surfactants that possess a positive charge. - **Non-ionic:** Surfactants that do not have any charge. - **Anionic:** Surfactants that carry a negative charge. In this case, the surfactant has a positively charged nitrogen atom as well as other groups that might ionize, suggesting that it can be classified as a **zwitterionic** surfactant. **Answer Selection:** - **zwitterionic** By choosing the correct answer, students can learn to recognize different types of surfactants based on their molecular structures and charge characteristics.
Transcribed Image Text:**Surfactant Classification** **Question:** What type of surfactant is this? **Image Description:** The given image displays a molecular structure of a surfactant. The structure is divided into two main parts: 1. A hydrophobic tail consisting of a long hydrocarbon chain with a double bond (indicating unsaturation) near the middle of the chain. 2. A hydrophilic head featuring a complex group with multiple oxygen atoms (including carbonyl groups and an ester), a phosphorus atom bonded to four oxygen atoms, and a positively charged nitrogen atom (indicated by \( \text{N}^+ \)), which is a part of an ammonium group. **Question Section:** Below the molecular structure, there is a set of multiple-choice options for identifying the type of surfactant. The options are: - **zwitterionic** - **cationic** - **non-ionic** - **anionic** **Detailed Explanation:** - **Zwitterionic:** Surfactants that contain both positive and negative charges. - **Cationic:** Surfactants that possess a positive charge. - **Non-ionic:** Surfactants that do not have any charge. - **Anionic:** Surfactants that carry a negative charge. In this case, the surfactant has a positively charged nitrogen atom as well as other groups that might ionize, suggesting that it can be classified as a **zwitterionic** surfactant. **Answer Selection:** - **zwitterionic** By choosing the correct answer, students can learn to recognize different types of surfactants based on their molecular structures and charge characteristics.
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