Question

Which of the following best explains how subcellular organelles interact to form polypeptides?

A. Lysosomes catalyze chemical reactions that join amino acids on the endoplasmic reticulum.

B. Mitochondria produce ATP that is used by ribosomes for transcription and translation in the nucleus.

C. mRNA is synthesized from DNA in the nucleus and then goes to the cytoplasm, where a ribosome translates it.

D. Ribosomes translate rRNA into proteins on the endoplasmic reticulum and send them to the Golgi complex for processing

Answer 1

Last question I'm going to answer today, since I have to get back to studying for my own things.

Polypeptides are just unfolded proteins. And how are proteins made? Remember how you learned about DNA being transcribed to mRNA, and then the mRNA's 3-letter codons being translated by ribosomes into a polypeptide chain, then folded into a protein? Yep. So the answer is C.

Answer 2

thank you so much!

Answer 3

Also, be careful that you're looking up the concepts in your notes/textbook/Wikipedia, etc. first before posting a questions. Posting one test-like question after another like this might make you look like you're making others do your own work. It's better to ask questions about specific concepts instead. Just FYI for the future ;)

Answer 4

Oh, I know, I'm just asking the questions that i'm really super stuck on. My teacher is horrible, and my textbook doesn't help me very much. But thank you for helping me!

Answer 5

OK. Just making sure you're not going overboard. Good luck, and thanks for the bio refresher! :)