Cells and Cell Structure Quiz

Grade 6 · Science · Quiz

Test your knowledge of cells, organelles, and the differences between plant and animal cells.

Questions

1. What is the main function of the cell membrane?

   1. To produce energy
   2. To control what enters and leaves the cell
   3. To make proteins
   4. To store DNA
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   Answer: To control what enters and leaves the cell

   The membrane acts as a selective barrier, letting in nutrients and expelling waste.

2. Bacteria are eukaryotic organisms.

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   Answer: False

   Bacteria are prokaryotes — they lack a membrane-bound nucleus.

3. Which organelle captures sunlight to make food in plant cells?

   1. Mitochondria
   2. Vacuole
   3. Chloroplast
   4. Nucleus
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   Answer: Chloroplast

   Chloroplasts contain chlorophyll and use sunlight to convert CO2 and water into glucose.

4. A ___ cell has a cell wall, chloroplasts, and a large central vacuole.

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   Answer: plant

   These three features are unique to plant cells and distinguish them from animal cells.

5. Which of the following is found in animal cells but NOT in plant cells?

   1. Mitochondria
   2. Cell membrane
   3. Centrioles
   4. Nucleus
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   Answer: Centrioles

   Centrioles help organize the spindle fibers during cell division and are found only in animal cells.

6. All living things are made of at least one cell.

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   Answer: True

   The cell theory states that all living things are made of one or more cells.

7. A single-celled organism with no nucleus is called a:

   1. Eukaryote
   2. Protist
   3. Prokaryote
   4. Parasite
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   Answer: Prokaryote

   Prokaryotes lack a true nucleus. Bacteria are the most common example.

8. Organelles are specialized ___ inside a cell that perform specific jobs.

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   Answer: structures

   Each organelle is like a tiny organ doing a specific job to keep the cell alive and functioning.

9. The large central vacuole in a plant cell mainly stores:

   1. DNA
   2. Energy
   3. Water
   4. Sunlight
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   Answer: Water

   The central vacuole stores water, helping maintain the plant's rigidity and shape.

10. The mitochondria is found in plant cells as well as animal cells.

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    Answer: True

    Both plant and animal cells need mitochondria to produce energy through cellular respiration.

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