Educational worksheet on cell organelles and their functions, featuring a plant cell diagram and matching exercises.

To solve the problem, we need to match each description with the correct organelle or cellular component. Let's go through each statement step by step:

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1. This is the control center of the cell.

- The control center of the cell is the nucleus, as it contains the genetic material (DNA) and controls cellular activities.
- Answer: 17 Nucleus

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2. This is made of DNA and is the storage area for all genetic information.

- DNA is stored in the nucleus, which is the primary repository for genetic information.
- Answer: 17 Nucleus

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3. This is the site of protein synthesis in a cell.

- Protein synthesis occurs at the ribosomes.
- Answer: 18 Ribosomes

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4. This porous structure surrounds the nucleus, keeping it intact.

- The nuclear membrane (or nuclear envelope) is a double-membrane structure that surrounds the nucleus and regulates the movement of substances in and out.
- Answer: 14 Nuclear membrane

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5. This internal membrane system is so extensive that it accounts for more than half the total membrane in a cell.

- The endoplasmic reticulum (both rough and smooth types) is an extensive network of membranes within the cell.
- Answer: 19 Rough endoplasmic reticulum or 20 Smooth endoplasmic reticulum

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6. When newly formed proteins leave the rough endoplasmic reticulum, they are transported to this organelle, where the proteins are sorted and packaged.

- The Golgi apparatus receives proteins from the rough ER, modifies them, and packages them for transport.
- Answer: 10 Golgi apparatus

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7. This part of the cell manufactures the ribosomal subunits.

- The nucleolus is responsible for producing ribosomal RNA (rRNA) and assembling ribosomal subunits.
- Answer: 15 Nucleolus

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8. This part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.

- Lysosomes contain digestive enzymes that break down waste materials and cellular debris. They are surrounded by a single membrane.
- Answer: 12 Lysosome

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9. The portion of the cell that exists outside of the nucleus.

- The cytoplasm is the gel-like substance that fills the cell and surrounds the nucleus.
- Answer: 8 Cytoplasm

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10. The part of the cell that controls what enters and leaves the cell.

- The cell membrane regulates the movement of substances in and out of the cell.
- Answer: 1 Cell membrane

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11. The part of the cell where chromosomes would be found.

- Chromosomes are located in the nucleus.
- Answer: 17 Nucleus

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12. This membrane connects the nuclear membrane to the cell membrane.

- The endoplasmic reticulum (both rough and smooth types) extends from the nuclear membrane to the cell membrane, forming a continuous membrane system.
- Answer: 19 Rough endoplasmic reticulum or 20 Smooth endoplasmic reticulum

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13. This part of the cell contains strong digestive enzymes to break down proteins, carbohydrates, and lipids into small molecules that can be used by the rest of the cell.

- Lysosomes contain digestive enzymes that break down waste materials and cellular debris.
- Answer: 12 Lysosome

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14. These are the most numerous of the cell's organelles.

- Mitochondria are often the most abundant organelles in cells, especially in cells with high energy demands.
- Answer: 13 Mitochondria

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15. This serves as the “powerhouse” of the cell.

- Mitochondria generate energy through cellular respiration, earning them the nickname "powerhouse of the cell."
- Answer: 13 Mitochondria

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16. The place where lipids are manufactured.

- The smooth endoplasmic reticulum is involved in lipid synthesis.
- Answer: 20 Smooth endoplasmic reticulum

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17. This part contains the instructions for making proteins and other important molecules.

- DNA, which is stored in the nucleus, contains the genetic instructions for making proteins and other molecules.
- Answer: 17 Nucleus

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18. This organelle consists of two types of fibers called microfilaments and microtubules.

- The cytoskeleton is composed of microfilaments (actin filaments) and microtubules, providing structural support and facilitating intracellular transport.
- Answer: 9 Cytoskeleton

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19. Choose 2 of the organelles from the list above that would never be found in a plant cell.

- Plant cells do not have centrioles or lysosomes.
- Answer: 4 Centriole, 12 Lysosome

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20. These three organelles all are surrounded by a double membrane.

- Organelles with double membranes include the nucleus, mitochondria, and chloroplasts.
- Answer: 17 Nucleus, 13 Mitochondria, 5 Chloroplast

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Final Answer:

1. 17 Nucleus
2. 17 Nucleus
3. 18 Ribosomes
4. 14 Nuclear membrane
5. 19 Rough endoplasmic reticulum or 20 Smooth endoplasmic reticulum
6. 10 Golgi apparatus
7. 15 Nucleolus
8. 12 Lysosome
9. 8 Cytoplasm
10. 1 Cell membrane
11. 17 Nucleus
12. 19 Rough endoplasmic reticulum or 20 Smooth endoplasmic reticulum
13. 12 Lysosome
14. 13 Mitochondria
15. 13 Mitochondria
16. 20 Smooth endoplasmic reticulum
17. 17 Nucleus
18. 9 Cytoskeleton
19. 4 Centriole, 12 Lysosome
20. 17 Nucleus, 13 Mitochondria, 5 Chloroplast

Boxed Final Answer:
\[
\boxed{
\begin{array}{ll}
1. & 17 \text{ Nucleus} \\
2. & 17 \text{ Nucleus} \\
3. & 18 \text{ Ribosomes} \\
4. & 14 \text{ Nuclear membrane} \\
5. & 19 \text{ Rough endoplasmic reticulum or } 20 \text{ Smooth endoplasmic reticulum} \\
6. & 10 \text{ Golgi apparatus} \\
7. & 15 \text{ Nucleolus} \\
8. & 12 \text{ Lysosome} \\
9. & 8 \text{ Cytoplasm} \\
10. & 1 \text{ Cell membrane} \\
11. & 17 \text{ Nucleus} \\
12. & 19 \text{ Rough endoplasmic reticulum or } 20 \text{ Smooth endoplasmic reticulum} \\
13. & 12 \text{ Lysosome} \\
14. & 13 \text{ Mitochondria} \\
15. & 13 \text{ Mitochondria} \\
16. & 20 \text{ Smooth endoplasmic reticulum} \\
17. & 17 \text{ Nucleus} \\
18. & 9 \text{ Cytoskeleton} \\
19. & 4 \text{ Centriole, } 12 \text{ Lysosome} \\
20. & 17 \text{ Nucleus, } 13 \text{ Mitochondria, } 5 \text{ Chloroplast} \\
\end{array}
}
\]