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    What Shapes a River: Field Lesson
    This lesson introduces students to field methods and theoretical concepts regarding the factors that shape river environments and ecosystems. Introductory material is followed by instruction in...

    Keywords: substrateRiver Field Studies Network Fluvial GeomorphologyWolman Pebble CountBankful FlowSediment Transport.

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    A tale of two globins: hemoglobin and myoglobin and oxygen transport
    Hemoglobin and myoglobin are two related proteins important in oxygen binding and transport to cells. However, unlike myoglobin, hemoglobin exhibits positive cooperativity in oxygen binding. Oxygen...
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    Assessing the water quality at Pescadero Creek, CA: does water turbidity and the creek’s composition affect the water quality?
    Right now in the world, there are many factors affecting the world’s environment. Environments, ecosystems, and weather throughout the world are changing due to the anthropocene. Humans are...

    Keywords: water quality

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    2014-Hrydziuszko-EtAl-Mathematical Two-compartment Model of Human Cholesterol Transport
    We develop a two-compartment mathematical model to investigate cholesterol transport in the circulatory system and its de novo synthesis in the liver.

    Keywords: metabolic syndromecompartmentcholesteroltwo-compartment modelcholesterol transport

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    Nucleo-cytoplasmic Transport
    This module introduces exponential decay and the rate of influx in the context of understanding the transport of molecules from the cytoplasm to the nucleus. It is intended for an introductory...

    Keywords: exponential equationsCell StructureCell Growth

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    Translocation of Nutrients in the Phloem: Dixon's Paradox
    This module introduces the Dixon equation in the context of understanding nutrient transport through sieve tubes. It is intended for an introductory biology audience.

    Keywords: plant physiologylinear regressionlinear equations

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    Translocation of Nutrients in the Phloem: Poiseuille's Equation
    This module introduces the Poiseuille equation in the context of understanding nutrient flow in plant cells. It is intended for an introductory biology audience.

    Keywords: plant physiologycalculushyperbolic equationsrates of change

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    Cellular Respiration and pH: blocking the electron transport chain and its effects on the proton gradient, pH, and ATP production
    This module contains exercises designed to help students describe the stages of cellular respiration and quantify the energy molecules produced. Students will predict the region of higher proton...

    Keywords: introductory biologyQuantitative reasoningquantitative biologyinterdisciplarycell functionInterpreting GraphsATPpHCellular RespirationEnergy transformationsElectron flowNIQBC2. Data and GraphsC4. mathematical modelsC1. Numeracyproton gradientelectron transportelectron transport blockersFADH2chemiosmosisATP synthaseNADHproton concentration

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    1986-Istvan_Gyori-Connections between compartment systems pipes and integro-differential equations
    In this paper we give the mathematical description of models in which the mass transport between compartments requires a given definite time or transit times are distributed according to given...

    Keywords: physiologypipelinecompartmentbloodcirculationintegro-differential equation

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    2014-Wrona-EtAl-Two-compartment model as a teaching tool for cholesterol homeostasis
    To investigate cholesterol transport in the circulatory system, we have previously developed a two-compartment mathematical model. Here, we show how this model can be used as a teaching tool for...

    Keywords: metabolic syndromecompartment modelcholesterolhigh blood cholesterol

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    2015-Wrona-EtAl-Two-compartment model as a teaching tool for cholesterol homeostasis
    To investigate cholesterol transport in the circulatory system, we have previously developed a two-compartment mathematical model. Here, we show how this model can be used as a teaching tool for...

    Keywords: metabolic syndromecholesterolhigh blood cholesterolcholesterol homeostasis

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    Learn Biological Sciences and Chemistry through cellular transport and concentration ( online and hands-on)
    Osmosis is a process by which by which solvent move from a region of lower solute concentration to region of higher solute concentration through a semi-permeable membrane. Cells utilize the process...

    Keywords: statisticsdata analysisbiologycell biologyconcentrationskillscellchemistryOsmosisSpectrophotometersolutionsolutesolvent

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    Seed Dispersal in Tropical Forests
    In this activity, students use data from published studies to understand patterns of seed dispersal and apply these ideas to the design of a conservation area. This was applied through the lens of...

    Keywords: ecologyResources @ HHMI - BioInteractivecommunityplantsdiversityScientific Process

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    Lights, Camera, Acting Transport! Using role-play to teach membrane transport
    Lights, Camera, Acting Transport! is an active and unique role-play exercise designed to teach introductory biology students basic concepts of passive and active membrane transport. The activity...

    Keywords: ATPcarrierschannelsco-transportelectrogenic pumpfacilitated diffusionmembrane transportpassive transportprimary active transportsimple diffusion

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    Necessary and Sufficient? Solving the Mystery of the Mitochondrial Pyruvate Transporter
    While there are several available lessons for teaching introductory biology students about diffusion, facilitated diffusion, and active transport, fewer materials exist to support upper-division...

    Keywords: DiffusionActive transportfacilitated diffusionNecessary and sufficientTransport proteins

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    Modeling the lac Operon to Understand the Regulation of Gene Expression in Prokaryotes
    This resource is a recitation activity designed for an introductory biology course in which students explore a lac operon simulation (https://qubeshub.org/resources/phetlacoperon).

    Keywords: simulationLac Operon

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    Hemoglobin Evolution
    This module introduces equations describing blood viscosity and oxygen transport in the context of understanding the evolution of red blood cells. It is intended for an introductory biology audience.

    Keywords: calculushyperbolic equationsAnimal Physiologyparabolic equationsmaxima

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    Metabolism for Energy and the Respiratory Quotient
    This module introduces the respiratory quotient in the context of understanding how metabolism is affected by environmental conditions. It is intended for an introductory biology audience.
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    Using Structured Decision Making to Explore Complex Environmental Issues
    Environmental issues are inherently complex, often requiring multiple interested parties to come together before agreeing on a solution. Structured decision making is a tool used by federal and...

    Keywords: interdisciplinarysocio-ecological systemsscience policystakeholderstructured decision making

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    Engaging Undergraduates in Mechanisms of Tubular Reabsorption and Secretion in the Mammalian Kidney
    If students fail to see the connections among physiological systems, they can become overwhelmed with the amount of information they need to learn. Some students have particular difficulty with the...

    Keywords: OsmosisActive transportMass flowRenal reabsorptionRenal secretionTransport across membranes

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