Compare proteins made on free ribosomes with those entering the rough endoplasmic reticulum for transport or secretion.
Tę umiejętność sprawdza 5 zadań wzorowanych na arkuszach IB z lat 2024–2026.
A pancreatic beta cell makes a polypeptide destined for insulin secretion. Where is the chain synthesized, and which bonds connect its amino acids? A. On Golgi membranes; ester bonds B. On ribosomes attached to rough ER; peptide bonds C. In lysosomes; hydrogen…
The activity of a complex organism depends on coordination between structures at several levels. (a) Outline how organelles cooperate in the synthesis and export of a secreted protein. (b) Describe the coordinated muscle actions that cause inhalation. (c)…
(i) Identify X. (ii) Explain the role of the ribosomes associated with X. (iii) Outline evidence that molecules containing the labelled amino acids move from X to the Golgi apparatus.
A cell synthesizes one enzyme for its cytosol and another protein for secretion. Which ribosomal locations are normally associated with these destinations? A. Both destinations require ribosomes inside lysosomes B. Only ribosomes on membranes can synthesize…
A pancreatic secretory cell produces digestive enzymes. State the site where these enzyme proteins are synthesized.
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