Photosynthesis And Respiration Model Answer Key

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Photosynthesis and Respiration Model Answer Key: A Comprehensive Guide



Are you struggling to understand the intricate relationship between photosynthesis and respiration? Do you need a clear, concise, and accurate model answer key to ace your biology exam? This comprehensive guide provides precisely that. We'll break down the core processes of photosynthesis and respiration, explore their interconnectedness, and provide model answers to common exam questions. This post serves as your ultimate resource for mastering these fundamental biological concepts, ensuring you understand not just the processes but also the ability to articulate them effectively.


Understanding Photosynthesis: The Energy Capture Process



Photosynthesis is the remarkable process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. This process is crucial for life on Earth, as it forms the base of most food chains.

The Photosynthesis Equation: A Simple Breakdown



The overall equation for photosynthesis is often simplified as:

6CO₂ + 6H₂O + Light Energy → C₆H₁₂O₆ + 6O₂

This equation shows that six molecules of carbon dioxide (CO₂) and six molecules of water (H₂O) react in the presence of light energy to produce one molecule of glucose (C₆H₁₂O₆), a simple sugar, and six molecules of oxygen (O₂).

Key Stages of Photosynthesis: Light-Dependent and Light-Independent Reactions



Photosynthesis is divided into two main stages:

Light-dependent reactions: These reactions occur in the thylakoid membranes within chloroplasts. Light energy is absorbed by chlorophyll and other pigments, converting light energy into chemical energy in the form of ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate). Oxygen is released as a byproduct.

Light-independent reactions (Calvin Cycle): These reactions take place in the stroma of the chloroplast. ATP and NADPH generated in the light-dependent reactions provide the energy to convert carbon dioxide into glucose. This process is also known as carbon fixation.


Understanding Respiration: Releasing Energy from Food



Cellular respiration is the process by which organisms break down glucose to release the stored energy. This energy is then used to power various cellular processes.

The Respiration Equation: The Reverse of Photosynthesis?



The simplified equation for cellular respiration is essentially the reverse of photosynthesis:

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP

This shows that glucose and oxygen react to produce carbon dioxide, water, and ATP – the usable energy currency of cells.

Stages of Cellular Respiration: Glycolysis, Krebs Cycle, and Electron Transport Chain



Cellular respiration is a multi-step process:

Glycolysis: This initial step occurs in the cytoplasm and breaks down glucose into pyruvate. A small amount of ATP is produced.

Krebs Cycle (Citric Acid Cycle): This cycle takes place in the mitochondria and further breaks down pyruvate, releasing carbon dioxide and producing more ATP and NADH.

Electron Transport Chain: This final stage also occurs in the mitochondria. Electrons are passed along a chain of proteins, generating a large amount of ATP. Oxygen acts as the final electron acceptor, forming water.


The Interconnectedness of Photosynthesis and Respiration



Photosynthesis and respiration are essentially reverse processes. Photosynthesis captures light energy and stores it in glucose, while respiration releases this stored energy for cellular use. The products of one process are the reactants of the other, creating a cyclical flow of energy and matter within ecosystems. This crucial relationship sustains life on Earth.


Model Answer Examples: Addressing Common Exam Questions



Here are some example questions and model answers demonstrating how to effectively answer questions about photosynthesis and respiration:

Q1: Explain the differences between photosynthesis and cellular respiration.

A1: Photosynthesis is an anabolic process where light energy is used to synthesize glucose from carbon dioxide and water, releasing oxygen. Cellular respiration is a catabolic process where glucose is broken down to release energy in the form of ATP, producing carbon dioxide and water. Photosynthesis occurs in chloroplasts, while respiration primarily occurs in mitochondria.


Q2: Describe the role of ATP in both photosynthesis and respiration.

A2: In photosynthesis, ATP is produced during the light-dependent reactions and used to power the light-independent reactions (Calvin cycle) to synthesize glucose. In cellular respiration, ATP is the primary energy currency, produced during glycolysis, the Krebs cycle, and the electron transport chain, providing energy for cellular processes.


Q3: How are photosynthesis and respiration vital for maintaining the balance of gases in the atmosphere?

A3: Photosynthesis consumes carbon dioxide and produces oxygen, while respiration consumes oxygen and produces carbon dioxide. This reciprocal relationship helps maintain a balance of these gases in the atmosphere, crucial for supporting life.


Conclusion



Understanding photosynthesis and respiration is fundamental to grasping the principles of energy flow in biological systems. By understanding the processes, their equations, and their interconnectedness, you can confidently answer exam questions and appreciate the intricate dance of life on Earth. This guide provides a solid foundation for further exploration of these vital processes.



FAQs



Q1: What is the role of chlorophyll in photosynthesis?
A1: Chlorophyll is a pigment that absorbs light energy, primarily in the red and blue regions of the electromagnetic spectrum. This absorbed energy is then used to drive the light-dependent reactions of photosynthesis.


Q2: What are the factors that affect the rate of photosynthesis?
A2: Several factors influence the rate of photosynthesis, including light intensity, carbon dioxide concentration, temperature, and water availability. Optimal conditions are needed for maximum photosynthetic efficiency.


Q3: What happens if cellular respiration doesn't function properly?
A3: If cellular respiration is impaired, cells lack the energy (ATP) needed to carry out their functions. This can lead to a variety of problems, depending on the severity and location of the impairment.


Q4: Are there any organisms that don't perform cellular respiration?
A4: While most organisms perform some form of cellular respiration, some anaerobic organisms can produce ATP without using oxygen. They utilize alternative pathways like fermentation.


Q5: How does photosynthesis contribute to the carbon cycle?
A5: Photosynthesis removes carbon dioxide from the atmosphere and incorporates it into organic molecules (glucose). This process plays a crucial role in regulating atmospheric carbon dioxide levels and mitigating climate change.


  photosynthesis and respiration model answer key: Molecular Biology of the Cell , 2002
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  photosynthesis and respiration model answer key: Rotational Learning in the Middle School Life Science Classroom James Lee Merrifield, 1996
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  photosynthesis and respiration model answer key: An Introduction to Photosynthesis Agatha Wilson, 2015 The most basic and significant aspect of life process on earth is linked to the process of photosynthesis. Photosynthesis is the most researched field amongst the scientific community. The present book examines the fundamentals of photosynthesis, and its impact on different life forms. The book contains important sections analyzing light and photosynthesis, the importance of carbon in photosynthesis, and discusses other significant topics related to the process of photosynthesis. The chapters are well-structured and are contributed by experts in the field. The readers will gain ample knowledge from the new findings documented in the book.
  photosynthesis and respiration model answer key: Modules McDougal Littell Incorporated, 2005
  photosynthesis and respiration model answer key: Pearson Biology Queensland 11 Skills and Assessment Book Yvonne Sanders, 2018-10-11 Introducing the Pearson Biology 11 Queensland Skills and Assessment Book. Fully aligned to the new QCE 2019 Syllabus. Write in Skills and Assessment Book written to support teaching and learning across all requirements of the new Syllabus, providing practice, application and consolidation of learning. Opportunities to apply and practice performing calculations and using algorithms are integrated throughout worksheets, practical activities and question sets. All activities are mapped from the Student Book at the recommend point of engagement in the teaching program, making integration of practice and rich learning activities a seamless inclusion. Developed by highly experienced and expert author teams, with lead Queensland specialists who have a working understand what teachers are looking for to support working with a new syllabus.
  photosynthesis and respiration model answer key: McGraw-Hill's SAT Subject Test: Biology E/M, 2/E Stephanie Zinn, 2009-02-01 We want to help you score high on the SAT Biology E/M tests We've put all of our proven expertise into McGraw-Hill's SAT Subject Test: Biology E/M to make sure you're fully prepared for these difficult exams. With this book, you'll get essential skill-building techniques and strategies created by leading high school biology teachers and curriculum developers. You'll also get 5 full-length practice tests, hundreds of sample questions, and all the facts about the current exams. With McGraw-Hill's SAT Subject Test: Biology E/M, we'll guide you step by step through your preparation program-and give you the tools you need to succeed. 4 full length practice exams and a diagnostic exam with complete explanations for every question 30 top test items to remember on exam day A step-by-step review of all topics covered on the two exams Teacher-recommended tips and strategies to help you raise your score
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  photosynthesis and respiration model answer key: Class 7 Science MCQ PDF: Questions and Answers Download | 7th Grade Science MCQs Book Arshad Iqbal, The Book Class 7 Science Multiple Choice Questions (MCQ Quiz) with Answers PDF Download (7th Grade Science PDF Book): MCQ Questions Chapter 1-24 & Practice Tests with Answer Key (Class 7 Science Textbook MCQs, Notes & Question Bank) includes revision guide for problem solving with hundreds of solved MCQs. Class 7 Science MCQ with Answers PDF book covers basic concepts, analytical and practical assessment tests. Class 7 Science MCQ Book PDF helps to practice test questions from exam prep notes. The eBook Class 7 Science MCQs with Answers PDF includes revision guide with verbal, quantitative, and analytical past papers, solved MCQs. 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  photosynthesis and respiration model answer key: Chemical Reference Materials National Research Council, Division on Earth and Life Studies, Ocean Studies Board, Committee on Reference Materials for Ocean Science, 2002-10-02 The accuracy of chemical oceanographic measurements depends on calibration against reference materials to ensure comparability over time and among laboratories. Several key parameters lack reference materials for measurements in seawater, particles in the water column, and sediments. Without reference materials it is difficult to produce the reliable data sets or long-term baseline studies that are essential to verify global change and oceanic stability. Chemical Reference Materials : Setting the Standards for Ocean Science identifies the most urgently required chemical reference materials based on key themes for oceanographic research and provides suggestions as to how they can be developed within realistic cost constraints. Chemical analyses of seawater are uniquely difficult given the poorly known speciation and the low concentration of many of the analytes of interest. Analyses of suspended and sedimentary marine particulate materials present their own distinct challenges, primarily due to potential interference by predominant mineral phases of different types. Of all the analytical methods applied to marine waters and particles, at present only a small fraction can be systematically evaluated via comparison to reference materials that represent the appropriate natural concentrations and matrices. Specifically, the committee was charged with the following tasks: - compile from available sources a list of important oceanographic research questions that may benefit from chemical reference standards; - create a comprehensive list of reference materials currently available for oceanographic studies; - identify and prioritize the reference materials needed to study the identified research questions; - determine for each priority analyte whether reference materials and/or analytic methods should be standardized; and - identify the most appropriate approaches for the development and future production of reference materials for ocean sciences.
  photosynthesis and respiration model answer key: Oswaal NDA-NA National Defence Academy / Naval Academy Chapterwise & Topicwise (2014-2023) Solved Papers General Ability Test: General Studies (For 2024 Exam) Oswaal Editorial Board, 2023-10-25 Description of the product • 100% updated with Fully Solved April & September 2023 Papers. • Concept Clarity with Concept based Revision notes & Mind Maps. • Extensive Practice with 800+ Questions and Two Sample Question Papers. • Crisp Revision with Concept Based Revision notes, Mind Maps & Mnemonics. • Expert Tips helps you get expert knowledge master & crack NDA/NA in first attempt. • Exam insights with 5 Year-wise (2019-2023) Trend Analysis, empowering students to be 100% exam ready.
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  photosynthesis and respiration model answer key: Oswaal NDA-NA Question Bank | Chapter-wise Previous Years Solved Question Papers (2014-2023) Set of 3 Books : English, General Studies, Mathematics For 2024 Exam Oswaal Editorial Board, 2023-10-28 Description of the Product: • 100% updated with Fully Solved April & September 2023 Papers. • Concept Clarity with Concept based Revision notes & Mind Maps. • Extensive Practice with 800+ Questions and Two Sample Question Papers. • Crisp Revision with Concept Based Revision notes, Mind Maps & Mnemonics. • Expert Tips helps you get expert knowledge master & crack NDA/NA in first attempt. • Exam insights with 5 Year-wise (2019-2023) Trend Analysis, empowering studentsto be 100% exam ready.
  photosynthesis and respiration model answer key: Class 11-12 Biology MCQ PDF: Questions and Answers Download | 11th-12th Grade Biology MCQs Book Arshad Iqbal, 2019-06-06 The Book Class 11-12 Biology Multiple Choice Questions (MCQ Quiz) with Answers PDF Download (College Biology PDF Book): MCQ Questions Chapter 1-18 & Practice Tests with Answer Key (11th-12th Grade Biology Textbook MCQs, Notes & Question Bank) includes revision guide for problem solving with hundreds of solved MCQs. Class 11-12 Biology MCQ with Answers PDF book covers basic concepts, analytical and practical assessment tests. Class 11-12 Biology MCQ Book PDF helps to practice test questions from exam prep notes. The eBook Class 11-12 Biology MCQs with Answers PDF includes revision guide with verbal, quantitative, and analytical past papers, solved MCQs. 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  photosynthesis and respiration model answer key: Kaplan AP Biology 2016 Linda Brooke Stabler, Mark Metz, Allison Wilkes, 2015-08-04 The Advanced Placement exam preparation guide that delivers 75 years of proven Kaplan experience and features exclusive strategies, practice, and review to help students ace the NEW AP Biology exam! Students spend the school year preparing for the AP Biology exam. Now it’s time to reap the rewards: money-saving college credit, advanced placement, or an admissions edge. However, achieving a top score on the AP Biology exam requires more than knowing the material—students need to get comfortable with the test format itself, prepare for pitfalls, and arm themselves with foolproof strategies. That’s where the Kaplan plan has the clear advantage. Kaplan's AP Biology 2016 has been updated for the NEW exam and contains many essential and unique features to improve test scores, including: 2 full-length practice tests and a full-length diagnostic test to identify target areas for score improvement Detailed answer explanations Tips and strategies for scoring higher from expert AP teachers and students who scored a perfect 5 on the exam End-of-chapter quizzes Targeted review of the most up-to-date content and key information organized by Big Idea that is specific to the revised AP Biology exam Kaplan's AP Biology 2016 provides students with everything they need to improve their scores—guaranteed. Kaplan’s Higher Score guarantee provides security that no other test preparation guide on the market can match. Kaplan has helped more than three million students to prepare for standardized tests. We invest more than $4.5 million annually in research and support for our products. We know that our test-taking techniques and strategies work and our materials are completely up-to-date for the NEW AP Biology exam. Kaplan's AP Biology 2016 is the must-have preparation tool for every student looking to do better on the NEW AP Biology test!
  photosynthesis and respiration model answer key: Environmental Chemistry Jorge G. Ibanez, Margarita Hernandez-Esparza, Carmen Doria-Serrano, Arturo Fregoso-Infante, Mono Mohan Singh, 2010-05-27 This book presents chemical analyses of our most pressing waste, pollution, and resource problems for the undergraduate or graduate student. The distinctive holistic approach provides both a solid ground in theory, as well as a laboratory manual detailing introductory and advanced experimental applications. The laboratory procedures are presented at microscale conditions, for minimum waste and maximum economy. This work fulfills an urgent need for an introductory text in environmental chemistry combining theory and practice, and is a valuable tool for preparing the next generation of environmental scientists.
  photosynthesis and respiration model answer key: Kaplan SAT Subject Test Biology E/M 2015-2016 Kaplan Test Prep, 2015-03-03 Essential strategies, practice, and review to ace the SAT Subject Test Biology E/M. Getting into a top college has never been more difficult. Students need to distinguish themselves from the crowd, and scoring well on a SAT Subject Test gives students a competitive edge. Kaplan's SAT Subject Test: Biology E/M is the most up-to-date guide on the market with complete coverage of both the content review and strategies students need for success on test day. Kaplan's SAT Subject Test: Biology E/M features: * A full-length diagnostic test * 2 full-length practice tests * Focused chapter summaries, highlights, and quizzes * Detailed answer explanations * Proven score-raising strategies * End-of-chapter quizzes Kaplan is serious about raising students’ scores—we guarantee students will get a higher score.
Photosynthesis And Respiration Answer Key (2024)
Pogil Photosynthesis And Respiration Answer Key (PDF) photosynthesis, detailing the processes occurring in the thylakoid membranes. We will explore the role of photosystems I and II, …

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detailed exploration of both photosynthesis and respiration, coupled with model answers to common exam questions, to solidify your understanding. Chapter 1: Unveiling the Secrets of …

Photosynthesis And Respiration Answer Key (Download Only)
Photosynthesis And Respiration Answer Key highlight recent advances in photosynthesis and respiration research, and to identify key challenges to understanding and scaling plant …

Photosynthesis BAP vM2 - morrisscienceclass.weebly.com


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10.4 Explain how the Calvin cycle uses the chemical energy of ATP and NADPH to reduce CO2 to sugar. 10.5 Identify alternative mechanisms of carbon fixation that have evolved in hot, arid …

19 Photosynthesis Model Answers Booklet 1 (OCR A Level …
Jul 19, 2021 · light independent reaction. light dependent reaction. [1] Temperature and light intensity are two factors that affect the rate of photosynthesis. A student investigated how …

Cellular Respiration and Photosynthesis Worksheet - Ohio …
contrasting the two processes of photosynthesis (making sugar) and cellular respiration (breaking down sugar). 1. Below is a picture of a cell. Label the locations of the three major pathways …

Photosynthesis Review Packet Model 1 Chloroplast 6CO
Is photosynthesis and endergonic or exergonic reaction? Support your answer with evidence from Model 1. Endergonic – a more complex molecule is formed (glucose).

POGIL: Photosynthesis + Respiration - GGHS BIOLOGY


Photosynthesis And Respiration Model Answers Key Copy
A: Photosynthesis converts light energy into chemical energy (glucose), while respiration converts chemical energy (glucose) into usable cellular energy (ATP). Photosynthesis is anabolic …

Photosynthesis And Respiration Model Answer Key (PDF)
Understanding photosynthesis and respiration is fundamental to grasping the principles of energy flow in biological systems. By understanding the processes, their equations, and their …

Photosynthesis And Respiration Model Answer Key
photosynthesis and photorespiration to improve plant productivity for the future. The overall goals for this volume are to highlight recent advances in photosynthesis and respiration research, …

Photosynthesis And Respiration Model Answer Key
examines the molecular mechanisms, adaptations and improvements of photosynthesis. With a strong focus on the latest research and advances, the book also analyzes the impact the …

Photosynthesis And Respiration Model Answers Key
Photosynthesis And Respiration Model Answers Key: Molecular Biology of The Cell Bruce Alberts,2002 Biology for AP ® Courses Julianne Zedalis,John Eggebrecht,2017-10-16 Biology …

Photosynthesis And Respiration Model Answer Key
MCQ Questions Chapter 1-16 & Practice Tests with Answer Key (Class 6 Science Textbook MCQs, Notes & Question Bank) includes revision guide for problem solving with hundreds of …

Chapter 9: Cellular Respiration and Fermentation
1. Explain the difference between fermentation and aerobic respiration. Fermentation is a partial degradation of sugars or other organic fuel that occurs without the use of oxygen. Aerobic …

topic 2.9 answers - BioNinja
Photosynthesis is the process by which cells use light energy to synthesise organic compounds from inorganic molecules Photosynthesis uses the visible spectrum (white light), which ranges …

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Revisit the lesson’s objective: construct a model of the chemical compounds making up the reactants and products of photosynthesis and cellular respiration. Ask students to answer the …

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by answering questions about three different models of photosynthesis. These models are a chemical equation, a flowchart that shows changes in energy and matter, and a diagram that …

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In the Model 2 place a green star by each process (A, B, C, or D) that represents photo- synthesis, and a red star by each process (A, B, C, or D) that represents cellular respiration. Write and label …

Photosynthesis And Respiration Answer Key (2024)
Pogil Photosynthesis And Respiration Answer Key (PDF) photosynthesis, detailing the processes occurring in the thylakoid membranes. We will explore the role of photosystems I and II, electron …

Photosynthesis And Respiration Model Answers Key Copy
detailed exploration of both photosynthesis and respiration, coupled with model answers to common exam questions, to solidify your understanding. Chapter 1: Unveiling the Secrets of …

Photosynthesis And Respiration Answer Key (Download Only)
Photosynthesis And Respiration Answer Key highlight recent advances in photosynthesis and respiration research, and to identify key challenges to understanding and scaling plant …

Photosynthesis BAP vM2 - morrisscienceclass.weebly.com
Photosynthesis BAPvM2 7 Teacher Guide & Answer Key Learning Objectives: After completing the activity, the students should be able to: 1. Understand the separation of the light dependent and …

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10.4 Explain how the Calvin cycle uses the chemical energy of ATP and NADPH to reduce CO2 to sugar. 10.5 Identify alternative mechanisms of carbon fixation that have evolved in hot, arid cli …

19 Photosynthesis Model Answers Booklet 1 (OCR A Level …
Jul 19, 2021 · light independent reaction. light dependent reaction. [1] Temperature and light intensity are two factors that affect the rate of photosynthesis. A student investigated how …

Cellular Respiration and Photosynthesis Worksheet - Ohio …
contrasting the two processes of photosynthesis (making sugar) and cellular respiration (breaking down sugar). 1. Below is a picture of a cell. Label the locations of the three major pathways …

Photosynthesis Review Packet Model 1 Chloroplast 6CO
Is photosynthesis and endergonic or exergonic reaction? Support your answer with evidence from Model 1. Endergonic – a more complex molecule is formed (glucose).

POGIL: Photosynthesis + Respiration - GGHS BIOLOGY
Explain. POGIL: Photosynthesis + Respiration. Model 2 Diagram. 1. In the Model 2 diagram, place a green star by each process (A, B,C, or D) that represents photosynthesis, and a red star by each …

Photosynthesis And Respiration Model Answers Key Copy
A: Photosynthesis converts light energy into chemical energy (glucose), while respiration converts chemical energy (glucose) into usable cellular energy (ATP). Photosynthesis is anabolic (building …

Photosynthesis And Respiration Model Answer Key (PDF)
Understanding photosynthesis and respiration is fundamental to grasping the principles of energy flow in biological systems. By understanding the processes, their equations, and their …

Photosynthesis And Respiration Model Answer Key
photosynthesis and photorespiration to improve plant productivity for the future. The overall goals for this volume are to highlight recent advances in photosynthesis and respiration research, and …

Photosynthesis And Respiration Model Answer Key
examines the molecular mechanisms, adaptations and improvements of photosynthesis. With a strong focus on the latest research and advances, the book also analyzes the impact the process …

Photosynthesis And Respiration Model Answers Key
Photosynthesis And Respiration Model Answers Key: Molecular Biology of The Cell Bruce Alberts,2002 Biology for AP ® Courses Julianne Zedalis,John Eggebrecht,2017-10-16 Biology for …

Photosynthesis And Respiration Model Answer Key
MCQ Questions Chapter 1-16 & Practice Tests with Answer Key (Class 6 Science Textbook MCQs, Notes & Question Bank) includes revision guide for problem solving with hundreds of solved …

Chapter 9: Cellular Respiration and Fermentation
1. Explain the difference between fermentation and aerobic respiration. Fermentation is a partial degradation of sugars or other organic fuel that occurs without the use of oxygen. Aerobic …

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Photosynthesis is the process by which cells use light energy to synthesise organic compounds from inorganic molecules Photosynthesis uses the visible spectrum (white light), which ranges …

Just Breathe: An Introduction to Photosynthesis and Cellular …
Revisit the lesson’s objective: construct a model of the chemical compounds making up the reactants and products of photosynthesis and cellular respiration. Ask students to answer the …

Teacher Notes for Using Models to Understand …
by answering questions about three different models of photosynthesis. These models are a chemical equation, a flowchart that shows changes in energy and matter, and a diagram that …