Science - 2019-20

BIO.3 e - Volume to Surface Area Ratio

The student will investigate and understand relationships between cell structure and function.
Key concepts include
e) the impact of surface area to volume ratio on cell division, material transport, and other life processes.

Bloom's Levels:  Analyze; Understand

Adopted: 2010

BIG IDEAS

  • The scientific theory of cells, also called cell theory, is a fundamental organizing principle of life on Earth.


  • I can explain why and how cells maintain homeostasis.

UNDERSTANDING THE STANDARD

  • As cells increase in size, surface area to volume ratios decrease, making cells unable to obtain nutrients or remove wastes. To reduce the effects of this, cells divide to stay small or change shape to increase surface area or reduce volume.

ESSENTIALS

In order to meet this standard, it is expected that students will

e) describe processes associated with movement across the membrane for diffusion, facilitated diffusion, osmosis, and active transport.

     describe the relationship between a cell’s external solute concentration and its effect on the cell’s internal solute concentration.

     compare the efficiency of  the ability of a cell to transport material based on surface area to volume ratios.


KEY VOCABULARY

cellular respiration, mitochondria, carbon cycle, anaerobic, glucose, cytoplasm, glycolysis, alcoholic fermentation, lactic acid fermentation, aerobic, Krebs cycle, matrix, cristae, ETC, ATP

Updated: Dec 01, 2017