Plant and Animal Cells Quiz

Grade 4 · Science · Quiz

Test your knowledge of the structures and functions of plant and animal cells.

Questions

1. Which of the following is found in BOTH plant and animal cells?

   1. Chloroplast
   2. Cell wall
   3. Nucleus
   4. Large central vacuole
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   Answer: Nucleus

   Both plant and animal cells have a nucleus. Chloroplasts, cell walls, and large central vacuoles are found only in plant cells.

2. Why do plants appear green?

   1. Their cell walls are green
   2. Their vacuoles store green water
   3. Their chloroplasts contain green chlorophyll
   4. Their cell membranes reflect green light
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   Answer: Their chloroplasts contain green chlorophyll

   Chloroplasts contain chlorophyll, a green pigment that absorbs light for photosynthesis. This pigment gives plants their green color.

3. What is the job of the nucleus in a cell?

   1. To make food using sunlight
   2. To store water for the cell
   3. To control the activities of the cell using DNA
   4. To give the cell a rigid shape
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   Answer: To control the activities of the cell using DNA

   The nucleus is the cell's control center. It contains DNA, which carries the instructions for all the cell's activities.

4. A plant cell without water would wilt because the ______ is not full.

   1. Chloroplast
   2. Cell wall
   3. Nucleus
   4. Vacuole
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   Answer: Vacuole

   The central vacuole stores water. When it is full, it pushes outward on the cell wall, keeping the plant firm. Without water, the vacuole shrinks and the plant wilts.

5. Which structure controls what enters and exits both plant and animal cells?

   1. Cell wall
   2. Cell membrane
   3. Nucleus
   4. Chloroplast
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   Answer: Cell membrane

   The cell membrane surrounds all cells and acts as a selective barrier, controlling what substances can pass in and out of the cell.

6. Animal cells get energy by:

   1. Using chloroplasts to capture sunlight
   2. Absorbing water through the cell wall
   3. Consuming food and breaking it down
   4. Releasing oxygen through vacuoles
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   Answer: Consuming food and breaking it down

   Unlike plant cells, animal cells cannot make their own food. They get energy by eating and digesting food, which is broken down into usable energy.

7. The cell wall in plant cells is flexible, just like the cell membrane.

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   Answer: False

   The cell wall is rigid and stiff, giving the plant cell a fixed shape. The cell membrane is flexible. Plant cells have both; animal cells only have the flexible membrane.

8. The jelly-like fluid that fills the inside of a cell and holds organelles in place is called ______.

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   Answer: cytoplasm

   Cytoplasm is the gel-like substance that fills the cell. It holds organelles in place and is the site of many chemical reactions.

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