Photosynthesis and cellular respiration worksheets for Grade 10 Science explore how cells capture, transfer, and use energy through connected molecular pathways. Designed within the NGSS From Molecules to Organisms: Structures and Processes topic, this resource connects light energy, glucose, ATP production, carbon flow, oxygen exchange, and organism-level functions.

What Students Explore

Students trace how thylakoid membranes capture light energy during photosynthesis, producing ATP and energized electron carriers that support the Calvin cycle. They then follow carbohydrates into cellular respiration, examining glycolysis, the Krebs cycle, the electron transport chain, oxidative phosphorylation, ATP synthase, and the role of oxygen as the final electron acceptor.

The resource also emphasizes the movement of carbon and oxygen between photosynthesis and cellular respiration. Students connect ATP production to biosynthesis, movement, thermoregulation, biomass production, and other life processes, helping them relate cellular energy pathways to organism-level survival.

Student Tasks

• Dialogue activity focused on energy pathways and cellular processes
• Matching activity connecting terms, processes, and energy relationships
• Cloze passage using key vocabulary such as membrane discs, chemical energy, Calvin cycle, biosynthesis, glycolysis, carbon dioxide, and ATP
• Labeled diagram requiring students to identify structures and pathway components
• Reading passage tracing photosynthesis, cellular respiration, carbon flow, oxygen flow, and ATP production
• Multiple-choice questions addressing thylakoids, carbon fixation, glycolysis, the Krebs cycle, oxidative phosphorylation, ATP, and oxygen availability
• Correct-or-incorrect statements checking core concepts about photosynthesis and respiration
• Short-answer responses requiring explanations of ATP, gas exchange, and oxygen's role in oxidative phosphorylation
• Extended response tracing energy from light capture through ATP production and connecting molecular pathways to biomass growth and survival

Teacher Support Included

A separate Teacher Guide PDF provides Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes. These supports give teachers practical guidance for introducing the pathways, prompting scientific reasoning, discussing common misconceptions, and extending classroom discussion.

Classroom Use

Use this Grade 10 biology practice resource for lesson reinforcement, independent work, review, formative assessment, or written practice after instruction on photosynthesis and cellular respiration. The progression from vocabulary and pathway identification to reading, selected-response questions, explanation, and extended reasoning gives students multiple opportunities to work with the same biological system at increasing levels of complexity.

By focusing on the actual pathway connections rather than isolated definitions, the resource gives students practice explaining how energy and matter move through cells and how those processes support the functions and survival of living organisms.