How Does RNA Help in Protein Synthesis?
How is information on an RNA strand used in assembling a protein?
a. During transcription
b. During translation
c. During replication
How does RNA exit the nucleus?
a. Through osmosis
b. Through a nuclear pore complex with the help of export receptors
c. Through simple diffusion
What picks up amino acids in the cytoplasm and brings them to a ribosome for assembly into a protein?
a. Transfer RNA (tRNA)
b. Ribosomal RNA (rRNA)
c. Messenger RNA (mRNA)
How do ribosomes use the information in RNA to assemble proteins?
a. By decoding the information in DNA
b. By catalyzing the reaction to produce an amino acid chain using the information in mRNA
c. By synthesizing new DNA molecules
Answer:
1. b. During translation
2. b. Through a nuclear pore complex with the help of export receptors
3. a. Transfer RNA (tRNA)
4. b. By catalyzing the reaction to produce an amino acid chain using the information in mRNA
RNA plays a crucial role in protein synthesis by carrying the information needed to assemble proteins. During translation, the information on an RNA strand is used by ribosomes to create proteins.
RNA exits the nucleus through a nuclear pore complex with the help of export receptors, not through osmosis. This process ensures that RNA molecules are transported properly to the cytoplasm.
Amino acids are picked up in the cytoplasm by transfer RNA (tRNA) molecules, not messenger RNA (mRNA). The tRNA molecules then deliver the amino acids to the ribosome for protein assembly.
Ribosomes use the information in RNA to catalyze the reaction that produces an amino acid chain. This process involves decoding the information in mRNA and assembling the protein molecule accordingly.