The Question is from neet-botany biodiversity , and it was created by the author Mr. NARESH KUMAR K

Question

Certain members of the kingdom Protista exhibit characteristics of both plants and animals. Which of the following combinations correctly identifies a protist with plant-like and animal-like features, respectively?

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
	**Primary Concept**: Characteristics of Protists
	**Related Topics**: Plant-like protists, Animal-like protists, Mixotrophic protists
	**Prerequisites**: Basic understanding of plant and animal characteristics, knowledge of common protist genera.
## SOLUTION PATHWAY
**Given Information**:
	The question asks to identify a protist exhibiting both plant-like and animal-like features.
	Options provide different protist pairings with their respective characteristics.
**Method & Steps**:
	1. Analyze each option to determine if the listed characteristics are accurate and if the protist exhibits both plant-like and animal-like features.
		Reasoning: Plant-like features usually include photosynthesis (autotrophic nutrition) and cell walls. Animal-like features typically include heterotrophic nutrition (consuming other organisms) and motility.
	2. Evaluate option B: Euglena (plant-like: photosynthetic); Amoeba (animal-like: heterotrophic by phagocytosis).
		Working: Euglena possesses chloroplasts and can photosynthesize, making it plant-like. Amoeba is a heterotroph that engulfs food particles through phagocytosis, a characteristic of animal-like protists.
		Key Point: Euglena is a mixotrophic organism, meaning it can switch between autotrophic (photosynthetic) and heterotrophic nutrition depending on environmental conditions.  This makes it a good example of a protist with both plant-like and animal-like characteristics.
	3. Eliminate other options based on incorrect characteristic assignments or lack of both plant-like and animal-like features in the given pairing.
		Result: Option B correctly identifies a protist with both plant-like and animal-like features.
		Verification:  The characteristics assigned to Euglena and Amoeba are accurate and reflect their respective nutritional modes and methods of movement.
## OPTION ANALYSIS
A :x: Diatoms are primarily known for their silica cell walls (plant-like), but Paramecium’s cilia are used for movement, not directly tied to a nutritional mode (animal-like).
B ✓: Euglena's photosynthesis (plant-like) and Amoeba's phagocytosis (animal-like) accurately reflect both characteristics.
C :x: Slime molds are saprophytic (decomposers), not necessarily plant-like. Dinoflagellates' bioluminescence is not a defining animal-like characteristic.
D :x: Amoeba's pseudopodia are used for movement, not plant-like characteristics.  Paramecium is heterotrophic, but this alone doesn't define it as distinctly animal-like in comparison to other protists.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing saprophytic nutrition with plant-like characteristics: Saprophytes obtain nutrients from dead organic matter; this is not a defining characteristic of plants.
			[How to avoid]: Understand the different types of nutrition (autotrophic, heterotrophic, saprophytic) and their association with different kingdoms.
		2. Focusing solely on motility as an animal-like feature: Many protists, including some plant-like ones, are motile.
			[How to avoid]: Consider both nutritional mode and other relevant characteristics to determine plant-like and animal-like features.
	**Quick Tips**:
		1. Remember that Euglena is a classic example of a mixotrophic protist exhibiting both plant-like and animal-like characteristics.
		2. Create a table summarizing the key characteristics of different protist groups to aid memorization.

Mr. NARESH KUMAR K · Answer

Diatoms (plant-like: cell wall of silica); Paramecium (animal-like: cilia for movement)

Mr. NARESH KUMAR K · Answer

The correct Option is "Euglena (plant-like: photosynthetic); Amoeba (animal-like: heterotrophic by phagocytosis)"

Mr. NARESH KUMAR K · Answer

Slime molds (plant-like: saprophytic); Dinoflagellates (animal-like: bioluminescence)

Mr. NARESH KUMAR K · Answer

Amoeba (plant-like: pseudopodia); Paramecium (animal-like: heterotrophic)

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