What is the largest macromolecule ??

May 14, 2010 at 1:00 pm #13309

Participant

Hello Everyone!!! I’m a new member. Anyway, I want to know what the largest macromolecule is. This question is in my examination TT. Thank you for every answer ^W^ 😀 😀 😀

PS. I want to know how to measure too. thank you very much krub 😀

May 15, 2010 at 7:24 am #99732

JackBean

Participant

I guess, you had some options, right? What about DNA?

May 15, 2010 at 8:12 am #99736

scienceclub

Participant

DNA is a nucleic acid that has double helix of polynucleotide. It consists of Nitrogenous base, phosphate group and deoxyribose sugar. I had searched the answer for this question and its answer is Nucleic acid. But I want to know why? I had opened so many books. But I’ve just graduate grade 9.I don’t know much about Biochemistry. I don’t know how to compare the size of molecule. Pls suggest me 🙂 🙂 thank you very much.

May 15, 2010 at 9:24 am #99737

JackBean

Participant

well, let’s say, that amino acid and nucleotide are approx. of the same size. Typical protein can contain about 1000 amino acids. DNA molecule contains at least several millions of base pairs 😉

May 16, 2010 at 1:49 am #99742

scienceclub

Participant

wow! I see. So protein has about 1000 amino acid (monomer), DNA has about millions nucleotide(monomer). That’s it. Wow thank you very muchhhhhhhhhhhhhhhhhhhhhh 😀

PS. I wonder how amino acid size is approx nucleotide size. Thank youuuuuuuuuuuuuuuuuuuu

May 16, 2010 at 7:33 am #99745

JackBean

Participant

well, proteins have usually less than 1000, but some have more, so I wrote 1000…

what did you mean by your PS?

May 17, 2010 at 1:43 am #99757

scienceclub

Participant

You said that amino acid size is about nucleotide size. I want to know how to measure their size.

May 17, 2010 at 8:15 am #99759

JackBean

Participant

meaning the molecular mass, I think, that the average molecular masses of AA and nucleotides are 130 and 140, respectively.