Educational worksheet illustrating the cellular structures of protozoa, including Paramecium and Amoeba, with interactive labeling elements.

Task Overview:

The task involves labeling the structures of two protozoan cells: Paramecium caudatum and Amoeba sp. The labels are provided in the right column, and you need to drag and drop them into the corresponding orange or purple boxes next to the labeled parts of the cells.

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Solution:

#### 1. Paramecium caudatum
The Paramecium is a ciliated protozoan with a complex internal structure. Below is the correct labeling for each part:

- Top Row (from left to right):
- Silia: These are the tiny hair-like structures covering the surface of the Paramecium, used for movement.
- Mikronukleus: A small nucleus involved in reproduction.
- Vakuola makanan: Food vacuoles where digestion occurs.
- Makronukleus: A large nucleus responsible for controlling cellular activities.
- Celah mulut: The oral groove, which helps in capturing food particles.
- Vakuola kontraktrel: Contractile vacuole, used for osmoregulation (removal of excess water).
- Mulut sel: The cytostome, the "mouth" of the cell where food enters.
- Pori/lubang anus: The anal pore, where waste is expelled.

#### 2. Amoeba sp.
The Amoeba is an amoeboid protozoan with a simpler structure compared to Paramecium. Below is the correct labeling for each part:

- Top Row (from left to right):
- Membran sel: The cell membrane, which regulates the movement of substances in and out of the cell.
- Ektoplasma: The outer, more gelatinous layer of the cytoplasm.
- Endoplasma: The inner, more granular layer of the cytoplasm.
- Nukleus: The nucleus, which contains the genetic material.
- Vakuola air: Air vacuoles, used for buoyancy control.
- Lisosom: Lysozymes, which contain digestive enzymes.
- Mitokondria: Mitochondria, the powerhouses of the cell, responsible for energy production.
- Vakuola makanan: Food vacuoles, where digestion occurs.
- Pseudopodia: False feet, used for movement and capturing food.
- Vakuola kontraktrel: Contractile vacuole, used for osmoregulation (removal of excess water).

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Final Answer:

#### Paramecium caudatum:
1. Silia
2. Mikronukleus
3. Vakuola makanan
4. Makronukleus
5. Celah mulut
6. Vakuola kontraktrel
7. Mulut sel
8. Pori/lubang anus

#### Amoeba sp.:
1. Membran sel
2. Ektoplasma
3. Endoplasma
4. Nukleus
5. Vakuola air
6. Lisosom
7. Mitokondria
8. Vakuola makanan
9. Pseudopodia
10. Vakuola kontraktrel

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Explanation:

- Paramecium has specialized structures like cilia (silia) for movement, a distinct oral groove (celah mulut), and contractile vacuoles (vakuola kontraktrel) for osmoregulation.
- Amoeba, being an amoeboid organism, lacks cilia but has pseudopodia for movement and uses contractile vacuoles for osmoregulation. Its internal structure includes a nucleus, mitochondria, lysosomes, and food vacuoles.

This labeling exercise helps understand the structural differences between these two types of protozoa.