Solved Cell Organelles Practice Worksheet Complete the | Chegg.com - Free Printable

Task Breakdown and Solution

The task consists of two parts:
1. Filling in the blanks with the correct terms related to cellular structures.
2. Indicating whether specific organelles are found in plant cells, animal cells, or both.

Let's solve each part step by step.

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Part 1: Filling in the Blanks

We need to match the descriptions with the appropriate cellular structures or components.

#### Blank 1: "Site where ribosomes are made"
- Answer: Nucleolus
- Explanation: The nucleolus is a dense region within the nucleus where ribosomes are synthesized.

#### Blank 2: "The membrane surrounding the cell"
- Answer: Cell membrane
- Explanation: The cell membrane (also called the plasma membrane) is the outer boundary of the cell that regulates the movement of substances in and out of the cell.

#### Blank 3: "Provides support for the cell, has two 'subparts'"
- Answer: Cytoskeleton
- Explanation: The cytoskeleton provides structural support and helps maintain the shape of the cell. It consists of three main types of filaments: microfilaments, intermediate filaments, and microtubules.

#### Blank 4: "Name for the collection of DNA in the nucleus of eukaryotic cells"
- Answer: Chromatin
- Explanation: Chromatin is the complex of DNA and proteins (primarily histones) that makes up chromosomes. It organizes DNA into a compact structure within the nucleus.

#### Blank 5: "Consist of hollow tubes which provide support for the cell"
- Answer: Microtubules
- Explanation: Microtubules are part of the cytoskeleton and are hollow, cylindrical structures made of tubulin proteins. They provide structural support and are involved in various cellular processes like cell division and intracellular transport.

#### Blank 6: "Small hair-like structures used for movement or sensing things"
- Answer: Cilia
- Explanation: Cilia are short, hair-like projections on the surface of some cells. They can be used for movement (e.g., in single-celled organisms) or for sensing the environment.

#### Blank 7: "Composed of a phospholipid bilayer"
- Answer: Cell membrane
- Explanation: The cell membrane is composed of a phospholipid bilayer, which forms a barrier between the inside and outside of the cell and regulates the passage of molecules.

#### Blank 8: "Longer whip-like structures used for movement"
- Answer: Flagella
- Explanation: Flagella are longer, whip-like structures used for locomotion in certain cells (e.g., sperm cells in animals or some bacteria).

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Part 2: Indicating Organelles in Plant Cells, Animal Cells, or Both

We need to check whether each organelle is found in plant cells, animal cells, or both.

#### Left Column: Organelles
1. Cell Wall
- Plant Cells: ✓
- Animal Cells: ✗
- Explanation: The cell wall is a rigid layer found only in plant cells, providing structural support and protection.

2. Vesicle
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: Vesicles are small, membrane-bound sacs used for storage, transport, and secretion of substances. They are present in both plant and animal cells.

3. Chloroplast
- Plant Cells: ✓
- Animal Cells: ✗
- Explanation: Chloroplasts are organelles found only in plant cells (and some algae) that carry out photosynthesis.

4. Chromatin
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: Chromatin is the material that makes up chromosomes and is present in the nuclei of both plant and animal cells.

5. Cytoplasm
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: Cytoplasm is the gel-like substance inside the cell membrane where most cellular activities occur. It is present in both plant and animal cells.

6. Cytoskeleton
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: The cytoskeleton provides structural support and is present in both plant and animal cells, although its composition may differ slightly.

7. Endoplasmic Reticulum
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: The endoplasmic reticulum (ER) is involved in protein synthesis and transport. It is present in both plant and animal cells.

8. Golgi Apparatus
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or use within the cell. It is present in both plant and animal cells.

9. Lysosome
- Plant Cells: ✗
- Animal Cells: ✓
- Explanation: Lysosomes are membrane-bound organelles containing digestive enzymes. They are primarily found in animal cells, as plant cells have similar functions carried out by other organelles.

#### Right Column: Organelles
10. Mitochondria
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: Mitochondria are the powerhouses of the cell, producing energy through cellular respiration. They are present in both plant and animal cells.

11. Nucleolus
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: The nucleolus is a dense region within the nucleus where ribosomes are synthesized. It is present in both plant and animal cells.

12. Nucleus
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: The nucleus contains the cell's genetic material (DNA) and controls cellular activities. It is present in both plant and animal cells.

13. Plasma Membrane
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: The plasma membrane (cell membrane) surrounds the cell and regulates the movement of substances. It is present in both plant and animal cells.

14. Central Vacuole
- Plant Cells: ✓
- Animal Cells: ✗
- Explanation: The central vacuole is a large, membrane-bound sac found in plant cells that stores water, nutrients, and waste products.

15. Ribosome
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: Ribosomes are responsible for protein synthesis. They are present in both plant and animal cells.

16. Vacuole
- Plant Cells: ✓
- Animal Cells: ✓
- Explanation: Vacuoles are membrane-bound sacs used for storage. While plant cells have a large central vacuole, animal cells have smaller vacuoles.

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Final Answer Summary

#### Part 1: Filling in the Blanks
1. Nucleolus
2. Cell membrane
3. Cytoskeleton
4. Chromatin
5. Microtubules
6. Cilia
7. Cell membrane
8. Flagella

#### Part 2: Indicating Organelles
| Organelle | Plant Cells | Animal Cells |
|--------------------|-------------|--------------|
| Cell Wall | ✓ | ✗ |
| Vesicle | ✓ | ✓ |
| Chloroplast | ✓ | ✗ |
| Chromatin | ✓ | ✓ |
| Cytoplasm | ✓ | ✓ |
| Cytoskeleton | ✓ | ✓ |
| Endoplasmic Reticulum | ✓ | ✓ |
| Golgi Apparatus | ✓ | ✓ |
| Lysosome | ✗ | ✓ |

| Organelle | Plant Cells | Animal Cells |
|--------------------|-------------|--------------|
| Mitochondria | ✓ | ✓ |
| Nucleolus | ✓ | ✓ |
| Nucleus | ✓ | ✓ |
| Plasma membrane | ✓ | ✓ |
| Central vacuole | ✓ | ✗ |
| Ribosome | ✓ | ✓ |
| Vacuole | ✓ | ✓ |

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Final Answer Boxed

\boxed{
\begin{array}{l}
\text{Part 1:} \\
1. \text{Nucleolus} \\
2. \text{Cell membrane} \\
3. \text{Cytoskeleton} \\
4. \text{Chromatin} \\
5. \text{Microtubules} \\
6. \text{Cilia} \\
7. \text{Cell membrane} \\
8. \text{Flagella} \\
\\
\text{Part 2:} \\
\begin{array}{|c|c|c|}
\hline
\text{Organelle} & \text{Plant Cells} & \text{Animal Cells} \\
\hline
\text{Cell Wall} & \checkmark & \times \\
\text{Vesicle} & \checkmark & \checkmark \\
\text{Chloroplast} & \checkmark & \times \\
\text{Chromatin} & \checkmark & \checkmark \\
\text{Cytoplasm} & \checkmark & \checkmark \\
\text{Cytoskeleton} & \checkmark & \checkmark \\
\text{Endoplasmic Reticulum} & \checkmark & \checkmark \\
\text{Golgi Apparatus} & \checkmark & \checkmark \\
\text{Lysosome} & \times & \checkmark \\
\hline
\end{array}
\\
\begin{array}{|c|c|c|}
\hline
\text{Organelle} & \text{Plant Cells} & \text{Animal Cells} \\
\hline
\text{Mitochondria} & \checkmark & \checkmark \\
\text{Nucleolus} & \checkmark & \checkmark \\
\text{Nucleus} & \checkmark & \checkmark \\
\text{Plasma membrane} & \checkmark & \checkmark \\
\text{Central vacuole} & \checkmark & \times \\
\text{Ribosome} & \checkmark & \checkmark \\
\text{Vacuole} & \checkmark & \checkmark \\
\hline
\end{array}
\end{array}
}