Free sample activity · Grades 6–8
Cell Structure Practice
Review a simplified model of plant and animal cells. The questions specify typical cells where needed; not every cell has every structure shown in a classroom diagram.
6 questions · No account · No timer · Immediate feedback
Before you begin
How to use this activity
Allow five to ten minutes. Sketch a typical plant cell and animal cell, then label the structures named in each question.
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Put it into practice
Choose an answer, read the explanation, then move to the next question. Your answers stay in this page and are not saved.
Which structure helps regulate what enters and leaves a typical plant or animal cell?
The cell membrane forms a selective boundary. It helps regulate movement between the cell and its surroundings.
Where is most of the DNA located in a typical plant or animal cell that has a nucleus?
The nucleus contains most of the cell's DNA. Some DNA is also present in mitochondria and, in plant cells with them, chloroplasts.
Which structures assemble proteins?
Ribosomes assemble proteins. They occur in both plant and animal cells.
Which organelles produce much of the ATP during aerobic respiration in typical plant and animal cells?
Mitochondria are major sites of aerobic respiration and ATP production. Plant cells need usable energy as animal cells do.
Which structure surrounds the cell membrane and provides support in a typical plant cell, but is absent from animal cells?
The plant cell wall provides structural support outside the membrane. Animal cells do not have cell walls.
In a green leaf cell, which organelles carry out photosynthesis?
Chloroplasts use light in photosynthesis. Many non-green plant cells, including typical root cells, do not have chloroplasts.
Practice complete
Compare a leaf cell with a root cell. Explain why a plant cell does not automatically need chloroplasts.
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All questions, answers & explanations
Use this review before or after practice. You can read and print it without JavaScript.
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Cell boundary
Which structure helps regulate what enters and leaves a typical plant or animal cell?
Answer: Cell membrane
The cell membrane forms a selective boundary. It helps regulate movement between the cell and its surroundings.
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Genetic material
Where is most of the DNA located in a typical plant or animal cell that has a nucleus?
Answer: Nucleus
The nucleus contains most of the cell's DNA. Some DNA is also present in mitochondria and, in plant cells with them, chloroplasts.
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Protein building
Which structures assemble proteins?
Answer: Ribosomes
Ribosomes assemble proteins. They occur in both plant and animal cells.
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Cellular respiration
Which organelles produce much of the ATP during aerobic respiration in typical plant and animal cells?
Answer: Mitochondria
Mitochondria are major sites of aerobic respiration and ATP production. Plant cells need usable energy as animal cells do.
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Structural support
Which structure surrounds the cell membrane and provides support in a typical plant cell, but is absent from animal cells?
Answer: Cell wall
The plant cell wall provides structural support outside the membrane. Animal cells do not have cell walls.
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Photosynthesis
In a green leaf cell, which organelles carry out photosynthesis?
Answer: Chloroplasts
Chloroplasts use light in photosynthesis. Many non-green plant cells, including typical root cells, do not have chloroplasts.
Take it one step further
Compare a leaf cell with a root cell. Explain why a plant cell does not automatically need chloroplasts.
Background reading
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