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Cell Parts and Functions

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Cell Parts and Functions

Cell diagram illustration

📚 Part 1: Multiple Choice

1. What is the basic unit of all living things?

Tissue

Cell

Organ

Organism

2. Which part of the cell controls all cell activities and contains DNA?

Cell membrane

Cytoplasm

Nucleus

Organelles

3. What is the function of the cell membrane?

Controls what enters and leaves the cell

Makes proteins

Stores water

Produces energy

4. Which organelles are responsible for producing energy in the cell?

Ribosomes

Mitochondria

Vacuoles

Chloroplasts

5. The jelly-like substance that fills the cell and holds organelles in place is called:

Nucleus

Cell wall

Cytoplasm

Cell membrane

🏷️ Part 2: Cell Diagram Labeling

6. Label the parts of the cell in the diagram below. Use the word bank provided.

Word Bank: nucleus, cell membrane, cytoplasm, mitochondria, ribosomes

A. _________________ (outer boundary of cell)

B. _________________ (control center with DNA)

C. _________________ (jelly-like filling)

D. _________________ (powerhouse organelles)

E. _________________ (protein-making organelles)

✏️ Part 3: Short Answer Questions

7. Explain why the cell membrane is important for cell survival.
8. Compare the functions of the nucleus and mitochondria. How are they different?
9. Why do you think organelles are sometimes called "tiny organs" of the cell?
10. Fill in the blanks: All living things are made of _______ or more _______. These structures contain smaller parts called _______ that each have specific _______ to help the cell survive.
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