TEKS & Objectives
7.12.B. identify the main functions of the systems of the human organism, including the circulatory, respiratory, skeletal, muscular, digestive, excretory, reproductive, integumentary, nervous, and endocrine systems;
7.3.B use models to represent aspects of the natural world such as human body systems and plant and animal cells
We will explore the components of plant and animal cells using models.
I will distinguish between plant and animal cells.
1. Watch video.
2. Review vocabulary.
Cells Cells are the tiny, basic building blocks of all living things.
Organelle tiny, specialized structures inside a cell that act like “little organs”. Just as your heart, lungs, and brain have special jobs to keep your body working, organelles have special jobs—like making energy, breaking down waste, or storing nutrients—to keep the cell alive and healthy.
Nucleus This organelle is the “brain” or control center of a cell. It’s usually the biggest “organelle” or inside part and it’s usually at the center. Both plant and animal cells have a nucleus.
Cytoplasm The thick, jelly-like substance that fills up a cell, and holds everything in place. It’s pictured as light green here.
Cell Membrane These are the thin, flexible outer skin that surrounds every cell, acting like a security guard. It keeps the right things in the cell and pushes the wrong things out.
3. Complete sorting activity together on the overhead board.
Select the picture below and use the diagram to sort the organelles.
- Works best using a computer mouse.
- Not assigned
- Teacher must be logged into www.education.com
- Paper verson linked in Classroom Resources.
4. Explore cell models.
- Wear a blindfold.
- Have a partner hand you a Jolly Rancher or similar candy with a variety of flavors.
- Guess the flavor and see if you are right.
Bonus coloring pages:
Speaking of cellular biology…
What do biologists post on Instagram?
Cell-fies
5. “Cells”
Classroom Resources
*Due to extra hands-on activities today, there will likely be no time for written work today.