Image + combination (multi-select) · Biology
A radiolabelled amino acid was supplied to an animal cell for a short time. The data show how radioactivity in organelles A, B, and C changed over time. From the statements (A–D) below, select only those that are true as written, and choose the option (①—⑤) that matches that set.
※ A, B, and C are one each of: Golgi apparatus, secretory vesicles, and rough endoplasmic reticulum, in an unspecified order.
Statements (A–D)
- AFrom the order of the peaks, the protein transport route can be read as A → B → C.
- BA is the rough endoplasmic reticulum with the ribosomes where protein synthesis first starts.
- CB is a secretory vesicle that fuses with the plasma membrane to release its protein contents.
- DIf an agent blocks ATP synthesis, the A→B radioactivity curve will look the same as under normal conditions.
Options
- ① A, B
- ② A, C
- ③ B, D
- ④ A, B, C
- ⑤ A, B, D