8/8/2019 CW Unit Summary

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10 Inquiry Investigations Module: Cellular World

Unit SummaryThe hands-on activities in Freys Inquiry InvestigationsModule Cellular World link to core science concepts,making them an excellent complement to existingcurricula. Students investigate plant and animal cells,osmosis and diffusion, biochemical reactions, mitosisand meiosis, and cell growth curves.

The Inquiry Investigations Module Cellular Worldcon-sists of seven investigative units featuring eighteenhands-on laboratory activities. Each unit begins witha thorough introduction of the science skills and con-cepts presented in the lab activities that follow. The labinvestigations can be performed in sequence (see pac-ing chart) or separately based upon the time available.

Suggested Going Furtherinvestigations allow studentsto design and carry out their own investigations,expanding their knowledge and understanding of thecellular world.

Unit 1: Cell Types and OrganizationLab 1: Exploring the Cellular World

In Activity 1, students observe cells and classify themas prokaryotic or eukaryotic. They also learn about lifecharacteristics of prokaryotic and eukaryotic cell types.

In Activity 2, students observe cells in tissues, measurethe size of cells and cell organelles, and learn that cellsin tissues are specialized.

Suggested Going Furtherinvestigations providestudents with the opportunity to make section whole-mount microscope slides and investigate how leavesbreathe.

Unit 2: Cell Structure and FunctionLab 2: Learning About Cell Structure and Function

In Activity 1, students compare the structural differ-ences between plant and animal cells.

In Activity 2, students observe the genetic material inplant root tipsan area of rapidly dividing plant tissue.

In Activity 3, students identify major cellular organellesin plant cells.

In Activity 4, students observe the effect of exposingcells to hypertonic, hypotonic, and isotonic solutions.

Suggested Going Furtherinvestigations allow studentsto further examine their prepared microscope slides.

Unit 3: Cell ProcessesLab 3: Examining Cell Processes

In Activity 1, students simulate the semi-permeablenature of the cell membrane by constructing models of

cells using dialysis tubing.

In Activity 2, students study the effects of diffusionthrough a semi-permeable membrane.

Suggested Going Furtherinvestigations allow studentsto further study hypertonic, hypotonic, and isotonicsolutions.

Unit 4: Cells and EnergyLab 4: How Cells Cycle Energy

In Activity 1, students observe how the biochemicalreactions of cellular respiration and photosynthesiscycle the compound carbon dioxide (CO2).

In Activity 2, students learn how the cellular enzymecatalase degrades a cellular poisonhydrogenperoxide (H2O2).

In Activity 3, students learn about the use ofchromatography in separating and identifyingcompounds. Students perform a chromatographicanalysis to identify the pigments of green and autumnleaves. Students also calculate the retention factor (RF)

values of individual pigments.

Suggested Going Furtherinvestigations allow studentsto explore how excessive heat or cold affects enzymes.

8/8/2019 CW Unit Summary

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