Breakdown: A Problem-Based "Cell" Unit for Biology (PBL)

Breakdown: A Problem-Based "Cell" Unit for Biology (PBL)
Subject
Grade Levels
File Type

Zip

(13 MB|113 pages)
Product Rating
Standards
NGSSHS-LS1-6
  • Product Description
  • StandardsNEW

The Case:

A man visits his doctor with a unique set of symptoms including pink urine. Students will determine the cause of the man’s illness while learning about macronutrients, enzymes, and prokaryotic and eukaryotic cell structures. Hopefully a diagnosis can be made before it is too late.

General Objectives: (from Texas State Standards)

The Case:

A man visits his doctor with a unique set of symptoms including pink urine. Students will determine the cause of the man’s illness while learning about macronutrients, enzymes, and prokaryotic and eukaryotic cell structures. Hopefully a diagnosis can be made before it is too late.

General Objectives: (from Texas State Standards)

- Compare the functions of different types of biomolecules, including carbohydrates, lipids, proteins, and nucleic acids.

- Identify and investigate the role of enzymes.

- Understand that cells are the basic structures of all living things with specialized parts that perform specific functions.

- Compare and contrast prokaryotic and eukaryotic cells, including their complexity, and compare and contrast scientific explanations for cellular complexity.

- Investigate and explain cellular processes, including homeostasis and transport of molecules.

- Summarize the role of microorganisms in both maintaining and disrupting the health of both organisms and ecosystems.

NGSS Objectives:

HS-LS1-6. Construct and revise an explanation based on evidence for how carbon, hydrogen, and oxygen from sugar molecules may combine with other elements to form amino acids and/or other large carbon-based molecules.

Timeline:

Day 1

Introduction: Students are introduced to the scenario through patient information.

Identifying Macromolecules: Students perform a lab test to identify macromolecules in common foods. Students learn about properties of carbohydrates, proteins, nucleic

acids, and lipids.

Day 2

Diet Data and Analysis: Students evaluate the nutritional content of the patient’s diet to determine if his symptoms are due to a dietary deficiency.

Macromolecule WS: Students practice the vocabulary of macromolecules.

Day 3

Enzyme Introduction: Students learn about activation energy and the role of enzymes in cells. Are the patient’s symptoms enzyme related?

Catalase Enzyme Lab: Students see an enzyme in action and design their own experiment to see if they can find an optimum temperature range for the catalase enzyme.

Enzyme WS: Students review basic enzyme concepts.

Day 4

The Patient Returns: Students learn new information about the patient that changes the treatment options.

Comparing Cell Types Notes: Students read and take notes to compare prokaryotic and eukaryotic cells.

Cell Types WS: Students practice identifying differences between the cell types and

identify how macromolecules are used to build cells.

Day 5

Modelling Membranes: Students model the components of a cell membrane and look at how molecules could pass through.

Antibiotics and Membranes: Students apply what they know about membranes to evaluate how an antibiotic would work on a specific bacterium.

Day 6

Cell Size Activity: Students look at the relationship between surface area and volume to explain the need for complexity in eukaryotic cells.

Diffusion and Osmosis Notes: Students define diffusion and osmosis to better understand how antibiotics enter and move through a cell.

Osmosis Lab: Students set up a lab to look at how hypertonic and hypotonic solutions affect cells.

Day 7

Osmosis Lab: Students complete the lab and apply the results to the action of antibiotics.

Passive and Active Transport Notes: Students compare passive and active transport and define homeostasis.

Prescription: Students review the differences between prokaryotic and eukaryotic cells as they determine which antibiotic they wish to prescribe.

Cell Transport WS: Students practice with cell transport concepts and vocabulary.

Day 8

Blood Smear: Students see the results of a blood smear test and find out the pathogen is not bacterial.

Membrane-Bound Organelle Notes: Students record information about basic eukaryotic organelles.

Eukaryotic Cells WS: Students practice with organelle vocabulary.

Day 9

Two Protist Parasites: Students compare two possible causes of infection to diagnose the patient.

Treatment: Students compare several antiprotozoal drugs to determine how they want to treat the patient.

Select the preview document to find a list of materials as well as the 1st day lesson.

Copyright © E. Stubbe (The Wasp Whisperer)

All rights reserved by author.

Terms of Use: This document is for personal use only and may only be used by the original purchaser. This entire document, or any parts within, may not be reproduced or displayed for public viewing. You may NOT electronically post this product online including to teacher blogs, classroom websites or school networks. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA).

Log in to see state-specific standards (only available in the US).
NGSSHS-LS1-6
Construct and revise an explanation based on evidence for how carbon, hydrogen, and oxygen from sugar molecules may combine with other elements to form amino acids and/or other large carbon-based molecules. Emphasis is on using evidence from models and simulations to support explanations. Assessment does not include the details of the specific chemical reactions or identification of macromolecules.
Total Pages
113 pages
Answer Key
Included
Teaching Duration
2 Weeks
Report this Resource to TpT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TpT’s content guidelines.
Loading...
$6.50
Digital Download
Share this resource
Report this resource to TpT
More products from The Wasp Whisperer
Product Thumbnail
Product Thumbnail
Product Thumbnail
Product Thumbnail
Product Thumbnail

Teachers Pay Teachers is an online marketplace where teachers buy and sell original educational materials.

Learn More

Keep in Touch!

Sign Up