CAPE Biology Unit 1 · 2014 · Paper 1 · Question Q11

The table below shows three processes involved in the movement of substances across cell membranes. Which of the following correctly states whether the three processes shown are active or passive in nature? \begin{tabular}{|l|l|l|l|} \hline & \textbf{Diffusion} & \textbf{Endocytosis} & \textbf{Osmosis} \\ \hline (A) & Active & Active & Active \\ \hline (B) & Active & Passive & Active \\ \hline (C) & Passive & Active & Passive \\ \hline (D) & Passive & Passive & Passive \\ \hline \end{tabular}

1. (A)Diffusion: Active; Endocytosis: Active; Osmosis: Active
2. (B)Diffusion: Active; Endocytosis: Passive; Osmosis: Active
3. (C)Diffusion: Passive; Endocytosis: Active; Osmosis: Passive
4. (D)Diffusion: Passive; Endocytosis: Passive; Osmosis: Passive