Question

label part 1 * 2 points 1. 2. 3. 4. 5. 6. figure b

Explanation:

To solve this problem, we analyze the structure in Figure B (a eukaryotic animal cell) and identify the organelle labeled by the red line (1):

Step 1: Analyze the cell type and structure

Figure B shows an animal cell (no cell wall, irregular shape). The red line points to a small, membrane - bound sac.

Step 2: Identify the organelle

In animal cells, small membrane - bound sacs involved in transport or storage are typically vesicles (or more specifically, a “transport vesicle” or “secretory vesicle,” but “vesicle” is the general term for this structure here). Other organelles: 2 (nucleus - like structure with nucleolus), 3 (mitochondrion), 4 (endoplasmic reticulum), 5 (cytoplasm), 6 (Golgi apparatus or another organelle, but for label 1, the key is the small membrane - bound sac).

Answer:

1. Vesicle (or “Transport Vesicle” / “Secretory Vesicle” – the most appropriate label for the small, membrane - bound structure pointed to by the red line in an animal cell diagram).