Question

Which motion is the best model to use to illustrate passive transport?

Answer 1

Students compare and contrast passive and active transport by playing a game to model this phenomenon. Movement through cell membranes is also modeled, as well as the structure and movement typical of the fluid mosaic model of the cell membrane. Concentration gradient, sizes, shapes and polarity of molecules determine the method of movement through cell membranes. This activity is associated with the Test your Mettle phase of the legacy cycle.This engineering curriculum meets Next Generation Science Standards (NGSS).

Engineering Connection

Engineers use models to represent and better understand the world at various scales. To better understand cells, engineers construct and manipulate models. In this activity, students construct a cell membrane and provide areas for specific transport. A molecule's ability to permeate through a cell membrane is one of the main focuses of intracellular engineering. A great deal of research is being done in the field of biomedical engineering to learn about the inner-workings of cells in order to develop new forms of medical technology.

Learning Objectives

After this activity, students should be able to:

Act as a different particle or part of the cell membrane to model active and passive transport.

Explain how particles are transported from one side of the cell membrane to the other.

Explain why engineers use models.

More Curriculum Like This



Cell Membrane Structure and Function

High School Lesson



Keepers of the Gate

High School Unit



Selectively Permeable Membranes

High School Activity



Surfactants: Helping Molecules Get Along

Elementary Lesson

Educational Standards 

 NGSS: Next Generation Science Standards - Science

 International Technology and Engineering Educators Association - Technology

Suggest an alignment not listed above

Materials List

Materials needed for this activity include:

yarn (or string)

scissors

hole punch

Types of Transport Activity Page, one per student

Red Rover Game Pieces (use the hole punch and yarn to make these game cards into student role identification placards; optional: laminate them so they are re-usable)

Cell Membrane Quiz, one per student

Introduction/Motivation

Today you are all going to participate in a cell membrane game called "Red Rover- Send Particles Over." This kinesthetic learning allows you to model and explore relationships within the cell involving the cell membrane. Active learning helps you to model what is happening on a molecular level so you can better understand processes that you are unable to visualize. You should have a chemical and biological understanding of the fluid mosaic model of the cell membrane and be familiar with the structure and polarity of molecules that will transport across the membrane. The act of modeling processes is a tool used by many engineers as they follow the steps of the design process in to solves problems and find good solutions.

Let's review passive and active transport:

Passive transport is the movement of substances across the membrane without any input of energy from the cell. Osmosis and diffusion (the focus of the previous lesson) are two examples of passive transport.

Active transport refers to movement of materials from an area of lower concentration to an area of higher concentration, against the concentration gradient. To do this, energy is required, usually from ATP. Cell membrane pumps, endocytosis and exocytosis (the focus of the previous lesson) all aid in active transport.

In the red rover game, you will physically "move" your body through a cell with either ease or constraints, depending on the type of transport specified.

Vocabulary/Definitions

active transport: The movement of substances through the cell membrane that requires energy.

passive transport: The movement of particles through the cell membrane that does not require energy.

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Answer 2

Answer:

bts mic drop

Explanation:

because its fireeeee