Zadanie 2c
Outline how a cell transcribes a protein-coding DNA sequence into an mRNA molecule.
Protein synthesis
Umiejętności w tym dziale
Umiejętności z tego działu sprawdzają 53 zadania wzorowane na arkuszach IB z lat 2022–2026. Dział pojawia się w 35 z 54 arkuszy w bazie.
Zadania z tego działu: 53 Otwórz w wyszukiwarce z filtrami
Zadanie 2d
Describe the processing of a newly transcribed eukaryotic mRNA before its export from the nucleus.
Zadanie 4a
An invented time-scaled tree compares ten related beetle species. (i) Identify the two species with the most recent divergence and give a reason. (ii) Suggest why comparing DNA base sequences can distinguish relationships that are missed by comparing amino…
- Materiał graficzny
Zadanie 6a
A small ribosomal subunit has attached to a eukaryotic mRNA. Describe the remaining initiation steps before elongation begins.
Zadanie 6b
Outline what happens at the A site and the E site during ribosomal elongation.
Zadanie 6c
Explain how tRNA connects an mRNA message to the amino acid sequence being made.
Zadanie 6d
State the cellular structure that degrades unwanted cytosolic polypeptides so their amino acids can be reused.
Zadanie 6b
Outline one role of ATP in the degradation pathway.
Zadanie 6c
State the final reusable products after complete breakdown of the enzyme.
Zadanie 6d
Justify the cell’s need to degrade proteins through proteasomes.