Cells Organelles Functions

Overview

In this lesson (Lesson 7 of 15) students build on earlier cell concepts by explaining how key organelles work together to support cell survival. They will create and use a functional chart for mitochondria, ribosomes, and the endoplasmic reticulum (ER).

Learning intentions

• Students will be able to describe major organelles and what they do in cells.
• Students will explain how organelles contribute to overall cell processes such as energy release and protein production.
• Students will use scientific vocabulary to communicate ideas clearly in a chart format.
• Students will connect organelle function to what a cell needs to live and function.

Success criteria

• I can identify mitochondria, ribosomes, and the endoplasmic reticulum in a cell diagram or description.
• I can state the function of each organelle in simple, accurate sentences.
• I can match each organelle to a cell process (e.g., energy from mitochondria, protein production from ribosomes).
• I can create a neat chart that includes organelle, location (general), function, and an example of what it helps the cell do.

Curriculum links

• Overall expectations: relate structure to function in cells using organelles as examples.
• Inquiry and communication: gather and organize information, then communicate using appropriate science language.
• Thinking skills: interpret information and use it to explain cause-and-effect relationships within cells.

Lesson structure (45 minutes)

1. 5 min — Warm-up: Cell organelle recall

• Display a simple cell outline with blanks. Students do a quick “think-pair-share” to recall at least one function they associate with cells and organelles from previous lessons.
• Teacher prompts: “What does a cell need to do to survive?”

2. 8 min — Mini-lesson: Structure–function focus

• Teach three organelles with short, direct explanations:
• Mitochondria: release energy for cellular processes (power for the cell).
• Ribosomes: make proteins (protein production).
• Endoplasmic reticulum: helps produce and transport proteins (protein pathway/support).
• Use a class anchor chart with sentence frames (e.g., “Mitochondria help the cell by…”).

3. 7 min — Model a completed chart

• Show a partially completed chart and model how to fill it in.
• Include: organelle name, key function, one “what it enables” example, and a simple location note (e.g., “inside the cell”).
• Emphasize clear “because” reasoning: function links to a cell need.

4. 15 min — Student creation: Organelles chart

• Students work in pairs to create a chart for the three organelles.
• Chart must include:
• Organelles: mitochondria, ribosomes, endoplasmic reticulum
• Function (one sentence each)
• “Cell process helped” (e.g., energy/proteins/transport)
• At least one specific scientific detail (kept at grade-appropriate level)
• Teacher circulates with a checklist and supports students who need word banks.

5. 7 min — Gallery walk / quick check

• Pairs post charts or hold them up. Another pair reads and completes a “one strength + one question” feedback note.
• Teacher selects 2–3 examples to highlight accurate structure–function links.

6. 3 min — Exit ticket

• Students answer: “Choose one organelle and explain how its function supports the cell.” Include an “I can” self-rating statement.

Resources

• Teacher-made cell diagram (blank or labelled for reference)
• Student chart templates (one page or half-sheet)
• Organelles information cards (short text, student-friendly)
• Sentence frames and word bank (mitochondria, ribosomes, endoplasmic reticulum, energy, proteins, transport, inside cell)
• Markers/coloured pencils
• Feedback slips for gallery walk (strength + question)
• Projector/board for anchor chart
• Scaffolding: bilingual or simplified vocabulary support where available (for ESL learners)

Assessment

• Formative: teacher observation during chart creation using a quick checklist (accurate organelle names, correct functions, clear explanations).
• Formative: gallery walk feedback to identify common misconceptions (e.g., confusing protein production with energy release).
• Summative for this lesson: exit ticket explanation that shows correct structure–function reasoning.

Differentiation

• Support (ESL/ELL): provide a word bank, sentence frames, and an organelle information card with simplified wording; allow answers using short sentences or drawings with labels.
• Support (SEN/learning needs): offer a partially completed chart with prompts (e.g., “Mitochondria help the cell by ___”); reduce writing length while keeping science accuracy.
• Challenge/extension for advanced learners: require an additional “because” clause and ask for a brief connection to how cells use energy to do work (e.g., transport, movement, building).
• Language accessibility: pre-teach key terms with gestures or visuals (energy/lightning icon for mitochondria; protein “building blocks” icon for ribosomes; pathway/transport arrows for ER).