Which means of particle transport is shown in the figure below?

• A. Exocytosis.
• B. Endocytosis.
• C. Facilitated diffusion.
• D. Simple diffusion.

Answer: (B)

Verified step by step guidance

1. Observe the image: The sequence shows a particle outside the cell, then the cell membrane enveloping the particle, and finally the particle inside the cell.
2. Identify the process: The image depicts a process where the cell membrane surrounds and engulfs the particle, forming a vesicle. This is characteristic of endocytosis.
3. Understand endocytosis: Endocytosis is a form of active transport where cells internalize molecules by engulfing them, forming vesicles from the cell membrane.
4. Differentiate from other transport methods: Exocytosis involves expelling materials from the cell, facilitated diffusion and simple diffusion involve passive transport without vesicle formation.
5. Conclude the analysis: Based on the image and the description of the process, the means of particle transport shown is endocytosis.