Homework Help: Biology

Posted by mysterychicken on Friday, January 22, 2010 at 6:07pm.

17. Functions of the nucleus include
a. directing the function of the cell
b. the partial assembly of ribosomes
c. storing most of the hereditary information of the cell
d. all of the above
D?

18. Internal membrances play important roles in protien production and processing except they do NOT
a. anchor ribosomes in place
b. transport substances to different areas
c. contain the hereditary information for the protein
d. modify proteins to go into vesicles
C?

19. Which of the following is NOT true about mitochondria?
a. It is where most of the organism's ATP is used
b. they have their own DNA
c. Muscle cells have many mitochondria
d. The inner membrane has a large surface area
B?

20. Identify the correct flow of energy through a living system.
a. sunlight, volcanic vent, prokaryote
b. sunlight,grass, caribou
c. plankton, sunlight, whale
d. grass, mouse, rabbit
B?

Thanks
-MC

Biology - bobpursley, Friday, January 22, 2010 at 6:18pm
again, 17: Explain how a nucleus "directs the function of the cell". You cant. I agree the nucleus controls the functions of the cell. Well,I guess I am nitpicking. Go with D.
the others are ok.
Biology - mysterychicken, Friday, January 22, 2010 at 6:19pm
Thanks a lot

-MC

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