Human Biology- cell membranes.. please i need help..?

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hi,
i was wondering if anyone could help me with the following question:
1.Name a cellular organelle that possesses a membrane:
2.Describe the membranes purpose in this organelle:
3.Identify three other cell organelles that are makeup of membrane system:
4.List 3 substances that need to be transported to all animal cells in order for them to survive:
5.List two substances that need to be transported out of all animal cells in order for them to survive:
6.Draw a simple labeled diagram to show the structure of a plasma membrane including features such as a lipid bilayer and various kinds of proteins.
 
you know you should really give your homework a better attempt before giving up and going on yahoo answers! take a look in your text book, and if you cant find anything there than try googling it. not only will you learn more but it will help you with learning how to efficiently research :)
 
1. Nucleus
2. To enclose the nucleus to protect the DNA stored there and to regulate substances going in and out of the nucleus.
3. You have terrible grammar.
4. Water, nutrients, hormones
5. Hormones, Water, Waste products
6. I can't draw on here.
 
1. Nucleus
2. To enclose the nucleus to protect the DNA stored there and to regulate substances going in and out of the nucleus.
3. You have terrible grammar.
4. Water, nutrients, hormones
5. Hormones, Water, Waste products
6. I can't draw on here.
 
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