Cell Size and Surface Area
Grade 12th Grade · Science · 45 min· Ngss Hs-ls1-2, 2.2 Cell Size
What's Included
Learning Objective
I can explain how surface area to volume ratio affects cell size and function.
Warm-Up Video
Khan Academy · 5:12
Surface area to volume ratio of cells | Cell structure and function | AP Biology | Khan Academy
Guided Notes
3 key concepts
- 1
Cells need resources from the outside world, which must make their way through the outer membrane, and waste products need to be released across that membrane.
- 2
As the volume of a cell increases, the ratio between surface area to volume decreases, making it harder to exchange resources, waste, and energy.
- 3
Cells can increase their surface area to volume ratio through folds in their membranes, allowing for more efficient exchange.
Practice Questions
10 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“Explain how a cell's surface area to volume ratio affects its ability to exchange resources and waste with its environment. Be sure to include what happens to the ratio as a cell grows larger.”
Complete Lesson Package
Get all 3 ready-to-use resources:
