Cell organelles quiz worksheet for learning and testing knowledge of eukaryotic cell structures.

Let's solve this "Quiz: Cell’s Organelles" step by step and provide clear explanations for each answer.

---

1. Match the description with a term.

Terms to use:
Cell membrane, Cytoplasm, Ribosomes, Golgi body, Mitochondria, Nucleus

#### a. Organelle that releases energy for the cell. The power house of the cell.
✔ Mitochondria
👉 *Explanation:* Mitochondria are known as the "powerhouse" because they produce ATP (energy) through cellular respiration.

#### b. Structure that forms a boundary of cell. Allows things to enter or leave the cell.
✔ Cell membrane
👉 *Explanation:* The cell membrane is semi-permeable and controls what enters and exits the cell.

#### c. Gel-like material inside the cell membrane.
✔ Cytoplasm
👉 *Explanation:* The cytoplasm is the jelly-like substance where organelles are suspended.

#### d. Where proteins are made.
✔ Ribosomes
👉 *Explanation:* Ribosomes are the sites of protein synthesis in the cell.

#### e. A folded membrane that moves material in cells. The UPS of a cell.
✔ Golgi body
👉 *Explanation:* The Golgi apparatus modifies, sorts, and packages proteins and lipids for transport — like a cellular post office or "UPS."

#### f. Structure that directs the cell’s activities.
✔ Nucleus
👉 *Explanation:* The nucleus contains DNA and controls gene expression and cell activities.

---

2. Complete the statement with an option.

#### 1. The structures within the cytoplasm of eukaryotic cells are ____________.
✔ a. Organelles
👉 *Explanation:* Eukaryotic cells have membrane-bound organelles (like mitochondria, nucleus, etc.) in their cytoplasm.

#### 2. Cell wastes are digested in organelles called ____________.
✔ b. lysosomes
👉 *Explanation:* Lysosomes contain digestive enzymes that break down waste materials and cellular debris.

#### 3. Water, food, and waste products are stored in the cell’s ____________.
✔ a. vacuoles
👉 *Explanation:* Vacuoles store water, nutrients, and waste. In plant cells, the central vacuole is large and helps maintain turgor pressure.

#### 4. Plant cells differ from animal cells because plant cells have ____________.
✔ c. cell walls
👉 *Explanation:* Plant cells have a rigid cell wall made of cellulose, which animal cells lack.

---

3. Complete the next image with the labeled parts.

We are given a diagram of an animal cell (since it has centrosome, no cell wall, and a large nucleus). We need to label the blank boxes.

Let’s identify each:

- Top left box → points to the outer boundary
✔ Cell membrane

- Top right box → points to the centrosome (already labeled), but the box is near the top right of the cell
Wait — actually, looking at the image:
- The centrosome is already labeled.
- The top right box is pointing to the smooth endoplasmic reticulum, but it's already labeled.
- Let’s go carefully.

Wait — the unlabeled boxes are:

1. Top box → pointing to the outer edge of the cell
✔ Cell membrane

2. Right side box → pointing to the mitochondrion (oval-shaped structure with folds)
✔ Mitochondria

3. Middle-left box → pointing to the nucleus (the pink circle with nucleolus inside)
✔ Nucleus

4. Bottom-left box → pointing to the ribosome (small dots on the rough ER)
✔ Ribosomes

5. Bottom box → pointing to the vacuole (large green dot)
✔ Vacuole

But wait — the vacuole is already labeled in the diagram. So let’s re-check:

Looking at the diagram:
- The nucleus is labeled with “nucleolus” inside it.
- The lysosome is labeled.
- The Golgi body, ribosomes, rough/smooth ER, and centrosome are labeled.

Now, the blank boxes point to:

1. Top box → outer boundary → Cell membrane
2. Right box → one of the oval red structures → Mitochondria
3. Middle-left box → the large pink structure → Nucleus
4. Bottom-left box → small purple dots → Ribosomes
5. Bottom box → green round structure → Vacuole

But vacuole is already labeled below. So maybe only four blanks?

Wait — there are five orange boxes:

- Top: → Cell membrane
- Right: → Mitochondria
- Middle-left: → Nucleus
- Bottom-left: → Ribosomes
- Bottom: → Vacuole

Yes, even though "vacuole" is written below, the box is pointing to the vacuole, so we label it.

But note: The vacuole is already labeled in the diagram ("vacuole") beneath the green circle. So perhaps the bottom box is meant to be "Vacuole", even if already named.

Alternatively, the bottom box might be pointing to something else?

Let’s analyze the positions:

From the image:

1. Top box: Points to the cell membrane (outer layer)
2. Right box: Points to a mitochondrion (red oval with inner folds)
3. Middle-left box: Points to the nucleus (pink circle)
4. Bottom-left box: Points to ribosomes (purple dots near ER)
5. Bottom box: Points to vacuole (green circle)

So all five are correctly labeled.

✔ Final labels:

- Top: Cell membrane
- Right: Mitochondria
- Middle-left: Nucleus
- Bottom-left: Ribosomes
- Bottom: Vacuole

> Note: Although "vacuole" is already labeled in the diagram, the box is pointing to it, so you still fill in Vacuole.

---

✔ Final Answers:

---

1. Matching:

a. Mitochondria
b. Cell membrane
c. Cytoplasm
d. Ribosomes
e. Golgi body
f. Nucleus

---

2. Multiple Choice:

1. a. Organelles
2. b. lysosomes
3. a. vacuoles
4. c. cell walls

---

3. Label the Diagram:

- Top box: Cell membrane
- Right box: Mitochondria
- Middle-left box: Nucleus
- Bottom-left box: Ribosomes
- Bottom box: Vacuole

---

Let me know if you'd like a printable version or a filled-in PDF!