Life Processes Test - 58

Solution

Correct answer is option A.

Explanation for correct option:

• A pseudopodia refers to the temporary projection of the cytoplasm of a eukaryotic cell.
• The functions of pseudopodia include locomotion and ingestion.
• Amoeba can change its shape with the help of these pseudopodia to exhibit locomotion. Hence, pseudopodia are known as a false foot in Amoeba.

• Digestion in amoeba is intracellular taking place within the cell. 
• The food is taken in remains in a food vacuole or gastric vacuole formed by the cell membrane and small part of the cytoplasm.
• The vacuoles are transported deeper into the cells by cytoplasmic movements. Here they fuse with lysosomes that contain enzymes. Hence, The digestion of food in amoeba is intracellular.

• Plaque is a soft, sticky film that builds up on your teeth and contains millions of bacteria. 
• When you eat, the bacteria in plaque use the sugars in your food to produce acids that eat away at the tooth enamel. Hence, Sugar + Plaque → acids.

• Amoeba obtains their food by the process of endocytosis. 
• It has a flexible cell membrane. It engulfs the food particle with the help of pseudopodia and then forms a vacuole around it. 
• When the particle is completely trapped the Amoeba secretes digestive enzymes that digest the food. Hence, Amoeba procures food through pseudopodia.