🔬 Part 1: Multiple Choice

1. Which organelle is known as the "control center" of the cell?

Mitochondria

Nucleus

Cell membrane

Cytoplasm

2. What is the main function of the mitochondria?

To control what enters and exits the cell

To store genetic information

To produce energy for the cell

To make proteins

3. The cell membrane acts as a:

Powerhouse

Control center

Protective barrier

Storage area

4. Which of the following help maintain homeostasis in a cell? (Check all that apply)

Nucleus directing cell activities

Mitochondria producing energy

Cell membrane controlling what enters and exits

All organelles working together

✏️ Part 2: Short Answer Questions

5. Explain how the nucleus, mitochondria, and cell membrane work together to keep a cell healthy.

6. Complete the following sentences:

a) The _____________ directs all cell activities and contains genetic information.

b) The _____________ are called the "powerhouses" because they produce _____________.

c) The _____________ controls what substances can enter and leave the cell.

7. Why is it important for all cell organelles to work together? Give one specific example.

🎨 Part 3: Cell Diagram Activity

8. In the space below, draw and label a simple animal cell. Include the nucleus, mitochondria, and cell membrane. Write one function next to each organelle.

9. What would happen to a cell if its mitochondria stopped working properly? Explain your reasoning.

Cell Structures & Functions

Cell Structures & Functions

🔬 Part 1: Multiple Choice

✏️ Part 2: Short Answer Questions

🎨 Part 3: Cell Diagram Activity

About This Worksheet

Free in Kuraplan

Print-Ready

AI-Generated

For Teachers & Parents

Need a custom version of this worksheet?

More Science Worksheets

Science Skills Review Worksheet

Year 3 Science Comprehension

Year 6 Science Exploration

Homeschool Science Worksheet

Earth Science Exploration Worksheet

Earth Science Question Worksheet

Soil Science Through Drama

Elemental Science Exploration

Explore more free resources