Day 10 of 30
Parts of a plant and their functions
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Learning Objective
Students will be able to explore parts of a plant and their functions.
In this lesson, we'll explore parts of a plant and their functions. Scientific inquiry allows us to investigate and explain natural phenomena.
All living things are composed of cells—the basic unit of life. Prokaryotic cells (bacteria) lack a membrane-bound nucleus. Eukaryotic cells (plants, animals, fungi) have a nucleus and membrane-bound organelles. Key organelles: Nucleus (controls cell activities, contains DNA), Mitochondria (produce energy via cellular respiration—"powerhouse"), Cell membrane (controls what enters and leaves), Ribosomes (build proteins), Endoplasmic reticulum (transports materials). Plant cells also have: Cell wall (rigid support), Chloroplasts (photosynthesis—"solar panels"), large central vacuole (stores water). Living things share characteristics: cellular organization, metabolism (chemical reactions), response to stimuli, growth and development, reproduction, homeostasis (maintaining internal balance), and heredity.
As you work through today's material, pay attention to the examples and try to identify the patterns or strategies being used. This will help you apply these concepts to new problems.
Take notes on key points and make connections to what you've already learned in previous lessons.
To examine systematically through observation and experiment
Observable facts that support or refute a claim
Instructions
Materials Needed
- Lab notebook
- Investigation materials
- Safety equipment if needed
Name three things all living things need to survive.
Is a rock living or nonliving? Explain your answer.
How is a plant different from an animal?
Teaching Tip
For this age group: Balance direct instruction with collaborative activities. Allow students to explain their thinking and make connections to prior knowledge when exploring parts of a plant and their functions.