Free Printable WorksheetScienceGrade 8Science CurriculumLS.8.82

8.82 Mitosis and the Cell Cycle (Growth and Repair) Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.82 Mitosis and the Cell Cycle (Growth and Repair). Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Mitosis and the Cell Cycle (Growth and Repair) - Which description best the stages and purpose of the cell cycle and mitosis in growth and tissue repair? (NGSS MS‑LS1‑5 (connections) / local frameworks; TEKS §112.28 Grade 8; FL NGSSS; VA SOL; MA STE)

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 8

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 8.82 Mitosis and the Cell Cycle (Growth and Repair) skill assessments:

Problem 1Difficulty: Mastery

A student mixes up mitosis and repair and says, “Repair happens because mitosis fixes damaged DNA.” "

Which explanation best corrects the student?,A. Repair happens because mitosis deletes damaged genes from DNA | B. Repair happens because mitosis creates different cell types by mixing genes | C. Repair happens because mitosis makes new cells; DNA repair is done by repair enzymes and checkpoints before division | D. Repair happens because mitosis stops the cell cycle forever,C,Mitosis increases cell number to replace damaged cells. DNA repair is handled by repair proteins and checkpoints; mitosis itself mainly separates copied chromosomes into two new nuclei.,YES,model,Create a clean Grade 8 mitosis or cell-cycle model based on the row context. Show the relevant stage sequence

Solution & Explanation:“Repair happens because mitosis fixes damaged DNA.” Question: Which explanation best corrects the student? If helpful

Problem 2Difficulty: Mastery

A cell finishes S phase but then experiences severe nutrient shortage.

Which outcome is most likely?

AThe cell must divide immediately because DNA is copied

BThe cell may pause in G2 and delay mitosis until resources return

CThe cell will skip mitosis and become two cells anyway

DThe cell will reduce chromosome number to save energy

Solution & Explanation:Even after S phase, checkpoints can delay progression if conditions are unfavorable. A severe nutrient shortage can prevent the cell from successfully completing mitosis.

Problem 3Difficulty: Mastery

A scientist wants to increase skin cell division only at a wound site, not everywhere. "

Which strategy is most targeted?,A. Increase cyclins in all tissues by injecting them into the bloodstream | B. Turn off checkpoints in the whole body | C. Force all cells into mitosis at the same time | D. Apply a local growth-factor gel to the wound area to stimulate nearby cells to enter the cell cycle,D,Local signals can stimulate division only where needed for repair. Whole-body changes (like disabling checkpoints) would be dangerous and not targeted.,YES,model,Create a clean Grade 8 mitosis or cell-cycle model based on the row context. Show the relevant stage sequence

Solution & Explanation:not everywhere. Question: Which strategy is most targeted? If helpful

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 8 Science students. It aligns with educational standard LS.8.82 (Sequence the cell cycle and explain how mitosis produces new cells.).