Cells are limited in how large they can be. It doesn't matter if they are plant or animal cells, both can only be so large. Since all materials enter and leave cells through the membrane, the amount of membrane or surface area affects how large the cell can be.

 

Use this to learn and reinforce answers to questions such as:

❑  What determines how large a cell can be?

❑  How do nutrients get into cells?

❑  Which are the largest cells we know of and what are their shapes?

 

Once students try this activity, they can capture their observations using the included Lab Notes or probing questions included in the instructions. 

 

Concepts Addressed

♦  Nutrients diffuse through cell membranes.

♦  Cell size is limited by how close a cell center is to its membrane (where the nutrients enter).

 

Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

 

Materials Needed   Agar, food coloring, timer, plastic knives

 

Prep Time  Prepare agar at least a day ahead.

 

Teaching Time   About 40 mins depending on accompanying writing assignment.

 

Student Sheets   Scaffolded writing prompts & lab reporting 

 

Connect with me… If you have questions or problems, please let me know in the Q&A section and I’ll get back to you asap.

 

Terms of Use

Copyright © Carolyn Balch. All rights reserved by the author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product may not be distributed or displayed digitally for public view. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). Clipart and elements found in this PDF are copyrighted and cannot be extracted and used outside of this file without permission or license. Intended for classroom and personal use ONLY.

Cells: What Determines How Large They Can Be? A Lab with Writing Prompts

$3.00Price

    Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

    Connect with me: If you have questions or problems, please let me know and I’ll get back to you as soon as I can.

     

    This resource (along with all resources sold on this site) can be found inside the membership. For information on that option, click here.

    Terms of Use   Copyright © Carolyn Balch. All rights reserved by the author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product may not be distributed or displayed digitally for public view. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). Clipart and elements found in this PDF are copyrighted and cannot be extracted and used outside of this file without permission or license. Intended for classroom and personal use ONLY.