Enzymes are proteins that act as catalysts to speed up chemical reactions within cells. The specific shape at the opening of an enzyme is called the active site. Only a specific molecule fits into an active site and binds to the enzyme. The molecule is then converted into products and released from the enzyme. Digestive enzymes help to break food down into nutrients that the body needs. The diagram shows the amino acids that are found in a digestive enzyme. Digestive enzyme 1 Two other digestive enzymes are shown. A Digestive enzyme 2 Digestive enzyme 3 Which statement BEST describes the three enzymes? B O ? ? D The enzymes have different structures because they have a different sequence of amino acids. O C The enzymes perform different functions because they have the same sequence of amino acids. The enzymes have the same sequence of amino acids because they are all digestive enzymes. The enzymes break down the same molecules because they have a different sequence of amino acids.
Enzymes are proteins that act as catalysts to speed up chemical reactions within cells. The specific shape at the opening of an enzyme is called the active site. Only a specific molecule fits into an active site and binds to the enzyme. The molecule is then converted into products and released from the enzyme. Digestive enzymes help to break food down into nutrients that the body needs. The diagram shows the amino acids that are found in a digestive enzyme. Digestive enzyme 1 Two other digestive enzymes are shown. A Digestive enzyme 2 Digestive enzyme 3 Which statement BEST describes the three enzymes? B O ? ? D The enzymes have different structures because they have a different sequence of amino acids. O C The enzymes perform different functions because they have the same sequence of amino acids. The enzymes have the same sequence of amino acids because they are all digestive enzymes. The enzymes break down the same molecules because they have a different sequence of amino acids.
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,...
Related questions
Concept explainers
Essential nutrients
These are the organic compounds present in the food that provide nourishment essential for the development and growth of our body. Nutrients not only provide us with the required energy to carry out various biological processes but are also the building blocks for repair and growth in our bodies.
Vitamins
The vitamins are organic molecules required in low concentration for the proper functioning of the body. They cannot be generated in the organism and are taken into the body through the diet. The lack of proper vitamins results in diverse deficiency disorders. They are thus called essential nutrients. The important vitamins are vitamin A, vitamin B complex, vitamin C, vitamin D, vitamin K, and vitamin E.
Question
Transcribed Image Text:Enzymes are proteins that act as catalysts to speed up chemical reactions within cells. The specific shape at the opening of an enzyme is called the active site. Only a specific molecule fits into an active site and binds to the enzyme. The molecule is then converted into products and released from the enzyme. Digestive enzymes help to break food down into nutrients that the body needs. The diagram shows the amino acids that are found in a digestive enzyme.
**Diagram Explanation:**
1. **Digestive Enzyme 1:**
- Illustrated in green, this enzyme has an active site with a unique shape that fits certain molecules symbolized by different colored shapes.
2. **Digestive Enzyme 2:**
- Shown in blue, this enzyme's active site has a different shape, implying it would bind with different molecules.
3. **Digestive Enzyme 3:**
- Depicted in red, with a distinct active site shape, suggesting specificity to yet another type of molecule.
**Question:**
Which statement BEST describes the three enzymes?
- A. The enzymes have different structures because they have a different sequence of amino acids.
- B. The enzymes have the same sequence of amino acids because they are all digestive enzymes.
- C. The enzymes perform different functions because they have the same sequence of amino acids.
- D. The enzymes break down the same molecules because they have a different sequence of amino acids.
(Option B is selected as the answer in the image.)
Transcribed Image Text:**Proteins**
Proteins are abundant in living systems. They are involved in almost all aspects of a cell’s ability to maintain homeostasis. Different types of proteins include enzymes, transport proteins, hormones, structural proteins, defense proteins, storage proteins, and contractile proteins. Due to the differences in their structure, proteins perform various functions including carrying substances throughout the body, constructing new structures, aiding in digestion, and coordinating the activities of the body. All cells build diverse proteins using the same building blocks of amino acids. There are 20 different amino acids that can be combined to make a protein. Structural similarities within amino acids allow for protein synthesis to be a regulated process, while differences within amino acids allow for interactions that create unique protein structures. An amino acid attaches to another amino acid by a peptide bond, forming a peptide. Polypeptides are formed when many amino acids link together to form a chain. Proteins are created as amino acids in one or more polypeptide chemically interact, fold, and create their three-dimensional structure.
The diagram shows the formation of a protein:
1. **Amino Acids**: Represented as individual colored circles, symbolize the building blocks of proteins.
2. **Peptide**: This stage illustrates the linking of amino acids through peptide bonds, forming a short chain, or peptide.
3. **Polypeptide**: A longer chain of linked amino acids is depicted, showing the growth of the peptide into a polypeptide.
4. **Protein**: Represents the complex, folded polypeptide chain arranged into its functional three-dimensional structure.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education