Free Printable WorksheetScienceGrade 7Science CurriculumMS-LS1-6

7.26 Energy Organelles Chloroplasts and Mitochondria Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.26 Energy Organelles Chloroplasts and Mitochondria. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Energy Organelles: Chloroplasts and Mitochondria - Which option correctly matches each organelle to its primary energy role? (NGSS MS‑LS1‑6, MS‑LS1‑7)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 7

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 7.26 Energy Organelles Chloroplasts and Mitochondria skill assessments:

Problem 1Difficulty: Mastery

Which explanation best summarizes the primary energy roles of chloroplasts and mitochondria in living things?

AChloroplasts and mitochondria both do the same job in every cell

BChloroplasts release usable energy from sugars, and mitochondria capture light in all cells

CChloroplasts capture light energy to build sugars, and mitochondria release usable energy from food molecules in plant and animal cells

DMitochondria are only for animals, and chloroplasts are only for plants that do not respire

Solution & Explanation:Chloroplasts are the energy-capturing organelles of photosynthesis, and mitochondria are the energy-releasing organelles of cellular respiration.

Problem 2Difficulty: Mastery

A lab-grown plant tissue is kept in constant light, yet it survives only when glucose is supplied from the outside. Which organelle failure best explains this result?

AChloroplasts are not making enough food, but mitochondria can still use supplied glucose

BMitochondria cannot release energy, so extra glucose solves the problem

CNuclei cannot store sunlight, so glucose replaces DNA

DCell walls are broken, so sugar makes new walls

Solution & Explanation:If added glucose keeps the tissue alive, then mitochondria can still use that glucose. The main failure is in the tissue's ability to make enough food through chloroplasts.

Problem 3Difficulty: Mastery

A leaf cell has working chloroplasts on a sunny day, but a toxin blocks all mitochondrial activity. Which result is most likely?

AThe cell may still make sugar, but it will struggle to power many activities because it cannot release enough usable energy

BThe cell will become a root cell

CPhotosynthesis will instantly stop in every nearby cell

DThe cell will make extra sunlight to compensate

Solution & Explanation:Chloroplasts can still make sugar in sunlight, but without mitochondria the cell cannot release enough usable energy for many functions.

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Frequently Asked Questions

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 7 Science students. It aligns with educational standard MS-LS1-6 (Primary standard selected for prompt fields in this prompt cell: NGSS MS-LS1-6. Skill statement in this prompt cell: Which option correctly matches each organelle to its primary energy role? Associated standards listed with this skill in this prompt cell: NGSS MS-LS1-6, MS-LS1-7. Use this prompt-provided wording as the supporting standard description for this workflow.).