Energy | Guided Practice
Adult learners explore how energy moves through living systems, with emphasis on how cells obtain, convert, store, and use energy. Students work through guided examples, partner tasks, and short whole-group checks to build practical understanding of biological energy concepts.
| Term | Definition |
|---|---|
| Energy | The ability to do work or cause change. |
| Metabolism | All the chemical reactions in a living organism that build up or break down materials to release or use energy. |
| ATP | A molecule that stores and transfers usable energy in cells. |
| Cellular respiration | The process cells use to break down glucose and make ATP. |
| Photosynthesis | The process by which plants and some other organisms use light energy to make sugars. |
| Glucose | A simple sugar that cells use as a main source of energy. |
| Chlorophyll | The green pigment in plants that helps capture light energy. |
| Energy transfer | Movement of energy from one form or organism to another. |
Ask students to name examples of energy they encounter daily and connect them to living systems. Record responses and guide the class toward the idea that living things need energy for movement, growth, repair, and reproduction.
Share examples, listen to classmates, and identify where energy is used in the body or in plants.
Use simple visuals to explain glucose, ATP, cellular respiration, and the idea that cells convert food energy into usable energy. Clarify that energy is not created or destroyed in these processes, but transformed.
Take brief notes, ask clarifying questions, and respond to teacher prompts about where energy comes from and where it goes.
Model one example of a cell energy diagram, then have students label a second diagram in pairs. Circulate to prompt with questions such as 'What enters the cell?' and 'What does the cell make?'
Work with a partner to label the diagram, discuss choices, and correct answers with teacher support.
Present a few short scenarios, such as a plant making sugar, a person running, or a cell repairing tissue. Guide students to identify whether the process involves photosynthesis, cellular respiration, or both.
Classify each scenario, explain reasoning aloud, and compare answers with a partner.
Ask students to complete sentence frames using vocabulary words, for example: 'ATP is important because...' or 'Photosynthesis helps plants by...' Provide feedback and rephrase as needed.
Complete sentence frames, share responses, and revise wording based on teacher feedback.
Review the key idea that living things need energy, cells use ATP, and energy moves through food chains and cell processes. Invite 2-3 students to summarize one idea in their own words.
State one thing learned, listen to peers, and clarify any remaining questions.
End by restating the central idea: living things need energy to survive, and cells manage energy through photosynthesis, cellular respiration, and ATP. Encourage students to remember the pathway from energy source to usable cellular energy.