Exam (elaborations)
AMBER KING FINAL LABS BIOS251 ONLINE LABS WEEK 3 MEMBRANE TRANSPORT LAB 2024|2025
- Course
- Institution
AMBER KING FINAL LABS BIOS251 ONLINE LABS WEEK 3 MEMBRANE TRANSPORT LAB 2024|2025
[Show more]
Content preview
AMBER KING FINAL LABS BIOS251 ONLINELABS WEEK 3 MEMBRANE TRANSPORT LAB
2024|2025
Anatomy & Physiology 1
AMBER KING
OL Lab 3: Cell Membrane and Transport: Learn how transporters keep cells
healthy
Learning Objectives:
Describe the plasma membrane structure using the fluid mosaic model
Recognize the relative permeability of lipid bilayers to different classes of
molecule
Compare active and passive transport of molecules
Identify the 3 modes of active transport and the different classes of ion channel
and carrier molecules
Relate the expression of specific transport proteins to the cell’s role
Introduction:
A variety of substances move in and out of the cells through the plasma membrane.
Membrane transport is vital for cellular activities. The cells need to be healthy for the
body to work efficiently. From filtration in the kidneys to the contraction of muscles
during exercise, membrane transport contributes to many processes. In this simulation,
you will learn about the structure and function of the cell membrane, and discover why
membrane transporters are vital for healthy cells and the function of organ systems.
In the first part of your mission, you will be introduced to the concepts of selective
permeability and the fluid mosaic models of the plasma membrane. You will explore why
cells need specialized transporter proteins to transport cargo molecules across their
membranes. While some molecules can diffuse across the cell membrane, most
molecules require a transporter protein to enter or leave the cell.
In the later part of the simulation, you will set up a fluorescence microscopy experiment
to learn how the channels, carriers, and pumps that exist in the membrane ensures that
only the right molecules enter under the right conditions and help not only to keep the
cell healthy but also help organ systems to function.
Part 1: Complete Labster Cell Membrane and Transport
, Part 2: Report and Reflection
Purpose: Describe in your own words and in complete sentences, the purpose of this
experiment.
The purpose of this experiment was to look at the transfer of molecules into and
out of cells via membrane transport. Through the two different simulations, we
were able to see the affects that transport molecules have on whether molecules
can enter a cell or not.
Observations: List 2 observations you have made in this simulation.
One observation that I made in this experiment is that small hydrophobic molecules are
the only molecules that can enter a cell with a transport molecule. The other observation
that I made through the simulation was that aquaporins are the transport molecules that
allow water to enter our cells. Through membrane transport, the aquaporins open up
and allow water to break through the cell membrane which results in it gaining access to
the inside of the cell.
Answer all the questions below:
1. In complete sentences and in your own words define the following cellular
transport: (2 points)
a. Diffusion: The movement of molecules into and out of the cell without using
transport protein channels.
b. Osmosis: diffusion of water across the cell membrane wall.
c. Facilitated diffusion: The movement of molecules through transport protein
channels known as membrane proteins that allow substances into the cell
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BESTGRADETESTBANKS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now