Question

What organelle does the mRNA strand go to so protein synthesis can start?

What do ribosomes make (produce)?

What are ribosomes attached to? (There are actually “free” ribosomes, too!!)

When proteins are actually made, what is the name of that process?

What type of a chemical reaction takes place to join the amino acids together?

How are amino acids joined together (what part of each amino acid joins the other)?

What is the name of the structure that carries amino acids to the ribosome?

Are tRNAs specific for amino acids?

What are codons and where are they found?

What are anticodons and where are they found?

What is produced from Transcription and Translation?

Where do transcription and translation each take place?

Why is translation called “translation?” ... Hint: what are you translating from and to???

What is the named given to the part of the tRNA that allows it to bind with the codon of the messenger RNA molecule?

What does tRNA stand for? What does it do?

How many different types of amino acids are there?

Describe how translation takes place. (AàBàCàDàEà à à)

What is different about the proteins made (synthesized) from free floating ribosomes (the ones not attached to the endoplasmic reticulum) compared to the proteins coming from the ribosomes attached to the ER?

Answer 1

Answer.

1. mRNA goes to the rough endoplasmic reticulum where ribosomes are present.
2. Ribosomes helps in synthezing the polypeptide.
3. They are attached to the endoplasmic ribosomes. Such ER is known as rough.
4. Translation is the process of protein synthesis..
5. Condensation occurs between the amino acids to form polypeptide..
6. Amino acids are joined together by the peptide bonds.
7. tRNA carries amino acids to the ribosome.
8. Yes, tRNA is specific for amino acids.
9. Codons is a sequence of 3 bases found on mRNA.
10. The bases complementary to the Codons are known as the anti Codons. These are found on the tRNA.
11. mRNA is produced from transcription and primary polypeptide is produced from the translation.
12. Transcription occurs in nucleus and translation in nucleus.
13. The information is translated from mRNA to the protein. The Codons of the mRNA are read by and bind to the anticodon of the tRNA to synthesise the polypeptide.
14. Anticodon end of tRNA binds to the mRNA Codons.
15. tRNA is known as the transfer RNA, its main role is to transfer the amino acids from the cytoplasm to the ribosome, complementary to the mRNA sequence.
16. There are 20 types of amino acids.