In an amoeba, the process of digesting food involves phagocytosis, where the amoeba engulfs food particles with its pseudopods and forms a food vacuole. Enzymes within the vacuole break down the food into smaller molecules, which are then absorbed by the amoeba for energy and nutrition.

Answer 1

Yes, you've described the process of phagocytosis in amoebas quite well! To elaborate further:

1. Phagocytosis Initiation: When an amoeba encounters food particles such as bacteria or organic debris, it extends its pseudopodia (temporary extensions of its cytoplasm) around the particles. This action is driven by the amoeba's need for energy and nutrients.

2. Engulfment: Once the pseudopodia surround the food particle, they fuse together, enclosing the particle in a pocket that eventually forms a food vacuole (also known as a phagosome).

3. Digestion: After the food vacuole is formed, it migrates through the cytoplasm and fuses with lysosomes, which contain digestive enzymes. These enzymes break down the food into smaller, absorbable molecules, such as amino acids and simple sugars.

4. Absorption: The smaller molecules are then absorbed through the vacuole membrane into the cytoplasm of the amoeba, where they can be used for energy or as building blocks for cellular processes.

5. Waste Removal: Finally, any undigested waste products remaining in the vacuole are expelled from the cell through a process called exocytosis.

This mode of nutrition allows amoebas to adapt to different food sources in their environment, making them effective and versatile predators in aquatic ecosystems.