Protein Synthesis

Multiple Choice

What is the significance of protein synthesis (transcription and translation) in living organisms?

• It helps organisms to move

• It is essential for building and maintaining cellular structures and functions

• It allows organisms to breathe

• It is responsible for digestion

Multiple Choice

Which type of RNA carries DNA instructions from the nucleus to the ribosome?

• Messenger RNA (mRNA)

• Transfer RNA (tRNA)

• Ribosomal RNA (rRNA)

• Deoxyribonucleic acid (DNA)

Open Ended

Explain the difference between transcription and translation in protein synthesis.

Multiple Choice

Which enzyme is responsible for building the mRNA strand during transcription?

• RNA polymerase

• DNA ligase

• Helicase

• Ribosome

Multiple Choice

During translation, what is the main function of tRNA?

• To bring amino acids to the ribosome

• To carry DNA instructions

• To unzip the DNA strand

• To synthesize mRNA

Multiple Choice

Using the codon wheel, which amino acid is coded by the codon GCU?

• Alanine

• Glycine

• Serine

• Leucine

Multiple Choice

Which of the following codons codes for methionine?

• AUG

• UAA

• UCU

• GGC

Open Ended

Describe the role of tRNA in the process of translation.

Multiple Choice

What is the function of a stop codon during translation?

• It signals the ribosome to release the mRNA and the new protein.

• It starts the translation process.

• It codes for methionine.

• It attaches the ribosome to the mRNA.

Multiple Choice

What are the main structural differences between RNA and DNA?

• RNA is single stranded and contains uracil, while DNA is double stranded and contains thymine.

• RNA is double stranded and contains thymine, while DNA is single stranded and contains uracil.

• Both RNA and DNA are double stranded and contain uracil.

• Both RNA and DNA are single stranded and contain thymine.