Free Printable WorksheetScienceGrade 10Science CurriculumBIO.10.28

10.28 Osmosis and Tonicity Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Biology Science worksheet provides structured practice on 10.28 Osmosis and Tonicity. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Osmosis and Tonicity: Students predict water movement in hypotonic, hypertonic, and isotonic conditions and interpret cell-size changes in osmosis scenarios. Rigor range: standard concept checks through honors/Pre-AP/AP-ready diagram, model, and stimulus-based cell or system analysis. Aligned to FreeK12Practice High School Biology Curriculum Crosswalk (NGSS/NRC Framework; CCSS Literacy and Mathematics; AP Biology enrichment; Texas TEKS Biology; Florida NGSSS/CPALMS Biology; Virginia SOL Biology; California NGSS and New York State Science Learning Standards) BIO.10.28 - Osmosis and Tonicity: National: NGSS HS-LS1-3; DCI LS1.A; CCSS RST.9-10.7; HSS.ID.A.1; AP Biology ENE-2, SP5. State frameworks: TX TEKS BIO.5C, BIO.2C; FL NGSSS SC.912.L.14.2; VA SOL BIO.3d; CA NGSS/NYSSLS HS-LS1-3.

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

Biology

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 10.28 Osmosis and Tonicity skill assessments:

Problem 1Difficulty: Mastery

Which integrated conclusion best explains cell-size changes in osmosis scenarios?

ACell volume depends only on total solute mass, regardless of membranes.

BCells always gain water in any solution that contains salt.

COsmosis is unrelated to cell size because water cannot cross membranes.

DCell volume depends on relative effective solute concentrations and membrane permeability.

Solution & Explanation:Accurate osmosis predictions require comparing effective solutes and permeability.

Problem 2Difficulty: Mastery

A display lists water potentials: Solution A = -0.2 MPa, Cell = -0.4 MPa, Solution B = -0.6 MPa. Water moves toward lower water potential. Which prediction is correct?

ASolution A causes the cell to swell, and Solution B causes it to shrink.

BSolution A causes shrinking, and Solution B causes swelling.

CBoth solutions cause the cell to swell equally.

DNeither solution affects the cell because all values are negative.

Solution & Explanation:Water moves from A into the cell, but from the cell into B.

Problem 3Difficulty: Mastery

A model shows water moving from high effective solute to low effective solute. What correction should be made?

AShow solute movement by osmosis instead of water movement.

BRemove the membrane because osmosis does not need one.

CShow net water movement from higher water potential to lower water potential.

DShow water moving only when ATP is added.

Solution & Explanation:Water generally moves from lower effective solute or higher water potential toward higher effective solute or lower water potential.

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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 Biology Science students. It aligns with educational standard BIO.10.28 (National: NGSS HS-LS1-3; DCI LS1.A; CCSS RST.9-10.7; HSS.ID.A.1; AP Biology ENE-2, SP5. State frameworks: TX TEKS BIO.5C, BIO.2C; FL NGSSS SC.912.L.14.2; VA SOL BIO.3d; CA NGSS/NYSSLS HS-LS1-3.).