Redraw Figure 17.6 to show the replicative cycle of a virus with a single-stranded genome that can function as mRNA
Active Transport Movement of molecules AGAINST a gradient from a region of low concentration to a high Requires energy(ATP) Passive Transport Movement of molecules DOWN/ WITH a gradient from a region of high concentration to low No energy required ex. simple diffusion, osmosis, facilitated diffusion Plasma membrane Selectively permeable Consists of a lipid bilayer with proteins dispersed throughout Cell wall Found in plants and fungi In plants and algae it consists of cellulose In fungi it consists of chitin Located outside plasma membrane Cytoskeleton Complex network of protein filaments that extend through cytoplasm and gives cells it s shape and ability to move Example of cytoskeleton microtubules- hollow tubes; make up cilia, flagella and spindle fibers Cilia/Flagellum Appendages
