Textbook Question
Enzymes speed up chemical reactions by ________.
a. Heating cells
b. Binding to substrates and placing stress on their bonds
c. Changing the shape of the cell
d. Supplying energy to the substrate
Ch. 4 - Body Weight and Health
Belk, Maier6th EditionBiology: Science for LifeISBN: 9780135214084
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Table of contents
- Ch. 1 - Can Science Cure the Common Cold?12
- Ch. 2 - Science Fiction, Bad Science, and Pseudoscience12
- Ch. 3 - Is It Possible to Supplement Your Way to Better Performance and Health?10
- Ch. 4 - Body Weight and Health10
- Ch. 5 - Life in the Greenhouse10
- Ch. 6 - Cancer10
- Ch. 7 - Fertility10
- Ch. 8 - Does Testing Save Lives?10
- Ch. 9 - Biology of Wrongful Convictions10
- Ch. 10 - Genetically Modified Organisms10
- Ch. 11 - Where Did We Come From?13
- Ch. 12 - An Evolving Enemy8
- Ch. 13 - Understanding Race11
- Ch. 14 - The Greatest Species on Earth?8
- Ch. 15 - Is the Human Population Too Large?10
- Ch. 16 - Conserving Biodiversity12
- Ch. 17 - The Human Footprint10
Belk, Maier6th EditionBiology: Science for LifeISBN: 9780135214084Not the one you use?Change textbook
Chapter 4, Problem 3
What are the reactants and products of cellular respiration?
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Identify the main process: Cellular respiration is a metabolic process in cells where chemical energy stored in glucose is converted into energy in the form of ATP (adenosine triphosphate).
Determine the initial substances: The reactants are the substances that start the cellular respiration process. In this case, the primary reactants are glucose (C6H12O6) and oxygen (O2).
Understand the role of reactants: Glucose is broken down, and oxygen is used to accept electrons, which helps in the production of ATP.
Identify the end products: The products are the substances produced as a result of cellular respiration. The main products are carbon dioxide (CO2), water (H2O), and ATP.
Recognize the overall reaction: The overall chemical equation for cellular respiration can be summarized as glucose plus oxygen yields carbon dioxide, water, and ATP.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Cellular Respiration
Cellular respiration is a metabolic process that converts glucose and oxygen into energy, specifically ATP (adenosine triphosphate), which cells use for various functions. This process occurs in three main stages: glycolysis, the Krebs cycle, and the electron transport chain, each contributing to the overall energy yield.
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Reactants of Cellular Respiration
The primary reactants of cellular respiration are glucose and oxygen. Glucose, derived from carbohydrates, serves as the main energy source, while oxygen is essential for the aerobic phase of respiration, allowing for the complete oxidation of glucose to produce energy efficiently.
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Products of Cellular Respiration
The main products of cellular respiration are carbon dioxide, water, and ATP. Carbon dioxide is released as a waste product, while water is formed during the electron transport chain. ATP is the energy currency of the cell, providing the necessary energy for cellular activities.
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Related Practice
Textbook Question
Which of the following is a false statement regarding enzymes?
a. Enzymes are proteins that speed up metabolic reactions.
b. Enzymes have specific substrates.
c. Enzymes supply ATP to their substrates.
d. An enzyme may be used many times.
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Textbook Question
What is meant by the term induced fit?
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Textbook Question
Add labels to the figure that follows, which illustrates the breakdown of a disaccharide inside a cell.
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Textbook Question
What would happen if activation energy barriers didn't exist?
a. Substrates would not bind properly to enzymes.
b. Chemical reactions in the body would never occur.
c. Enzyme function would not be affected.
d. Metabolic reactions would proceed even if their products were not needed.
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