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13. In eukaryotes, mitochondria are the organelles primarily involved in:  

20. The lipid layer that forms the foundation of cell membranes is primarily composed of molecules called __________. 

10. Plant cells often have a large membrane-bound sac that is used for storing water and other substances called a:  

6. Integrins are glycoproteins that help link the cytoskeleton and the:  

What do vellus hairs lack?

5. Microfilaments such as actin, microtubules, and the intermediate filaments form the cell-supporting structure called the:  

Glycosaminoglycans (GAGs) help give the ground substance some of its qualities, such as

35. For the process of diffusion to occur, molecules must  

35. What aspect of cellular respiration occurs in the cytoplasm in eukaryotic cells?  

22.  Osmosis is the diffusion of water across a membrane in response to the concentration of one or more of the ______.