Question: How does an amoeba obtain its food?
- Autotrophy
- Heterotrophy
- Endocytosis
- Exocytosis
How Does an Amoeba Obtain Its Food Answer: C. Endocytosis
Solution: Amoebas are heterotrophic organisms, meaning they must obtain food from other organisms. They do this through the process of endocytosis, in which the amoeba extends its pseudopodia (finger-like extensions) to engulf food particles.
An amoeba obtains its food through a process called phagocytosis. This single-celled organism surrounds its prey, such as bacteria or small algae, using its flexible cell membrane. The amoeba extends its pseudopodia, or “false feet,” to engulf the food particle, forming a food vacuole. Once inside, enzymes break down the food, allowing the amoeba to absorb the nutrients it needs for energy and growth. This method of obtaining food is efficient for amoebas, enabling them to thrive in various environments. Understanding how an amoeba obtains its food highlights the adaptability of these simple yet fascinating organisms.
What is the Function of Digestive Enzymes?
Digestive enzymes play a crucial role in breaking down the food we consume into smaller, absorbable molecules. These enzymes, produced by the salivary glands, stomach, pancreas, and small intestine, facilitate the digestion of carbohydrates, proteins, and fats. For instance, amylase breaks down starches into sugars, while proteases digest proteins into amino acids. Lipases are responsible for breaking down fats into fatty acids and glycerol. By aiding in the digestion process, digestive enzymes ensure that nutrients are efficiently absorbed into the bloodstream, supporting overall health and energy levels. Understanding the function of digestive enzymes is essential for maintaining proper digestive health.
