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This video (11:45) is the fifth in the Crash Course Biology series. It covers how cells regulate their contents and communicate with one another via mechanisms within the cell membrane.1) Passive Transport - 1:172) Diffusion - 1:253) Osmosis - 2:124) Channel Proteins- 4:375) Active Transport - 4:586) ATP - 5:377) Transport Proteins - 6:198) Biolography - 6:379) Vesicular Transport - 9:0210) Exocytosis - 9:2111) Endocytosis - 9:5012) Phagocytosis - 9:5713) Pinocytosis - 10:2914) Receptor-Mediated Endocytosis - 10:48


  • Science > General
  • Science > Biology
  • Science > Life Sciences

Education Levels:

  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


biology chemistry cell cell membrane selective permeability selectively permeable active transport passive transport solution concentration concentration gradient atp adenosine tri-phosphate jens christian skou vesicular transport phagocytosis endocytosis



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial
Update Standards?

SCI.9-12.SC.912.L.18.3: Science

Describe the structures of fatty acids, triglycerides, phospholipids, and steroids. Explain the functions of lipids in living organisms. Identify some reactions that fatty acids undergo. Relate the structure and function of cell membranes.
Curriki Rating
On a scale of 0 to 3
On a scale of 0 to 3

This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 3, as of 2014-04-27.

Component Ratings:

Technical Completeness: 3
Content Accuracy: 2
Appropriate Pedagogy: 3

Reviewer Comments:

This unit focuses on perimeter and area.  A Unit Overview is provided listing an estimated timeline, concepts, lessons and assessments.  There are a number of activities for each lesson, offering a variety of strategies to address each concept.  Some of the lessons did not have activities to go with them.  Additional materials are required for some of the activities including tangram tiles, geometric tiles, and measuring tools.  Some problems with the unit include the Mid Unit Assessment not being accessible, answer keys were not provided and some activities were missing parts.  With some minor adaptations, many of the activities could easily be used in a classroom.  Overall, the unit offers a great variety of activities that offer creative ways to address area and perimeter topics.  
Curriki Review System
August 6, 2014
This video is part of the larger collection called Crash Course Biology. You can learn more about this collection by reading its review and comments. You can also find the…

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