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Grade 7life scienceOriginal practice

Life Science: Cell Structure & Organelle Functions

Investigate eukaryotic cell anatomy. Compare plant and animal organelles including mitochondria, chloroplasts, nucleus, and ribosomes with diagrams.

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About this practice

Grade 7 · science · Matching answer key included · US Letter and A4

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Preview the original practiceLife Science: Cell Structure & Organelle Functions: first student practice page

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Teaching guide, sample answers and curriculum references

Before you begin

Distinguish a cell from a whole organism and identify a labeled cell model.

How to use this worksheet

  1. Model the target skill: develop and use a model to describe the function of a cell as a whole and ways the parts of cells contribute to the function. Use the first task as a guided example before asking for an independent response.
  2. Check readiness first: Distinguish a cell from a whole organism and identify a labeled cell model.
  3. Discuss an incorrect response using this distinction: Plant cells also have mitochondria; organelles are not all unique to one cell type.

A common mistake to discuss

Plant cells also have mitochondria; organelles are not all unique to one cell type.

What to practice next

Compare two cell diagrams and justify an organelle's role rather than memorizing its position.

Sample question and answer

Which cellular organelle is responsible for performing cellular respiration to convert biochemical glucose into usable energy in the form of ATP?

  • A. Endoplasmic Reticulum
  • B. Mitochondria
  • C. Lysosome
  • D. Golgi Apparatus

Answer: B. Mitochondria are often called the powerhouses of eukaryotic cells because they perform aerobic respiration, generating ATP energy for cellular metabolic activities.

Intended curriculum references: NGSS.MS-LS1-2. These references describe learning goals; they are not endorsements.

Published 2026-10-02; updated 2026-10-02. Original MakeWorksheet practice. Automated consistency checks support publication; independent subject-specialist review is not recorded. Read our editorial policy.

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