Multiple Choice
Which of the following types of protists is most likely to have a nerve net?
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27. Protists
Introduction to Protists
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How does a Euglena obtain nutrients?
A
By absorbing nutrients through its cell wall
B
Through photosynthesis using chloroplasts
C
By engulfing food particles through phagocytosis
D
By secreting digestive enzymes into the environment
Verified step by step guidance1
Understand that Euglena is a genus of single-celled organisms that are often found in freshwater environments. They are unique because they exhibit both plant-like and animal-like characteristics.
Recognize that Euglena contains chloroplasts, which are organelles that allow them to perform photosynthesis. Photosynthesis is the process by which light energy is converted into chemical energy, producing glucose and oxygen from carbon dioxide and water. This is a plant-like characteristic.
Consider the animal-like characteristic of Euglena, which is their ability to ingest food particles. Euglena can perform phagocytosis, a process where they engulf food particles, enclosing them in a food vacuole where digestion occurs.
Note that Euglena does not absorb nutrients through its cell wall. Instead, it uses its flexible pellicle to change shape and move, aiding in the capture of food particles.
Understand that Euglena does not secrete digestive enzymes into the environment for nutrient acquisition. Instead, digestion occurs internally within the food vacuoles after phagocytosis.
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