Cell Membrane Transport Lab Report

Membrane Transport

By: Ruchi Patel

Lab Partners: Megan Guinn, Chelsea Johnson, Kristi Chastain

September 8,2016

Introduction

The cell membrane is also referred to as a plasma membrane. All cells contain a cell membrane. Its main functions are to control what enters and exits the cell, maintains shape and size of the cell and its selective permeability. It separates the different organelles from the cells' environment. It acts as a barrier between both, the interior and exterior surroundings. The plasma membrane is described to be a fluid mosaic. The membrane is very moveable. The structure is made up of four different types of molecules. One of the molecules is a phospholipid. It is a major component

It is an important factor needed in the cell membrane. The molecule maintains the balance of the membrane because it strengthens the it by not allowing some molecules to cross the cell membrane. Cholesterol is made up of four rings of both Hydrogen and Carbon atoms. Cholesterol is smaller and its mass is less compared to other molecules in the cell membrane. In the cell membrane, cholesterol helps compact vital proteins. Cholesterol in cell membranes, tends to give extra support. Since it is more rough compared to other lipids it makes it difficult for smaller molecules to pass through the cell membrane.

Carbohydrates is the fourth molecule in the cell membrane. They are monosaccharides. Monosaccharides is a sugar molecule. Complex carbohydrates are often composed of polysaccharides. Polysaccharides is a large number of sugar molecules attached together. Cholesterol molecules are often found placed in the lipid bilayer. This assists the membrane's fluid to stay balanced. On the multicellular side filled with fluid there will be

These drugs copy the brains chemicals. Drugs that cause a disruption, can lead to harming the communication channels. Although drugs are harmful, for some users it causes pleasure. This is one of the main reasons drug users seem to repeat their actions.

Drugs can be passed through the cell pores. The route the cell takes is completely independent of water and lipids ability to be soluble. This process is called bulk flow transport. The drug is injected through the muscle. Active transport is for drugs that can not pass the membrane, and require some protein. Primary active transport occurs when the drug flows opposite from the concentration gradient. Secondary active transport occurs when the drug moves against the flow by using energy.

Drug abuse is a common problem worldwide. My friends uncle was on drugs really bad. He took them often throughout the day. The medical field always helps others to realize how wrong they are and how they should fix their mistakes. However, there's few people that actually obey their health provider. National Drug Intelligence Center (NDIC) states mostly drug abusers are people that lack medical care, food, and shelter. Strategies for preventions can be done by helping those young and old adults finding shelter and proper free medical care. Help should be offered to