Summary: Cell Membrane Transport

Words: 642

Pages: 3

Open Document

faster rate than a cell with a lower concentration. My hypothesis relates to the material studied because it was all about membrane transport. The KMnO4 must diffuse throughout the membrane in order to build up the concentration of the solution. The membrane concentration of KMnO4 is very high, making it easy for molecules to diffuse to the lower concentration outside of the membrane. My results support my hypothesis. The solution with the highest concentration (100mM) diffused at a quickly rate than either of the lower solutions, (20mM or 4mM). Drugs enter the cell membrane by one of three ways, transcellular transfer, paracellular transfer, or by porous filter. Transcellular transfer occurs when cells are very tight together, the molecules pass by going …show more content…
Lets explore a few drugs; heroin, ecstasy, marijuana, methamphetamine, alcohol, cocaine, and LSD. Heroin effects the opiate receptor in the brain and causes dopamine to be over released. This effects the brain because heroin acts as a painkiller. (University of Utah 2006) Ecstasy makes the serotonin transporters do their job backwards. They release excess serotonin. This effects the brain because it controls how humans sleep, eat, and act. (University of Utah 2006). Marijuana effects the opiate receptor in the brain and causes dopamine to be over released these effects the brain by relaxing the brain, slowing the brain, and effecting the short term memory. (University of Utah 2006). Methamphetamine is taken in by dopamine receptors, pushing out the dopamine molecules. This effects the brain by making humans feel stoked. (University of Utah 2006). Alcohol first alters GABA and increases it, then it stops glutamate from carrying out its function. It then affects the part of the brain that controls memory, mobile ability, and it alters how you make your decision. (University of Utah

Essay Anatomy Intorduction to the Human Body

ANATOMY & PHYSIOLOGY I WORKSHEET I Plasma Membrane and Cellular Transport Structure of the Plasma Membrane 1. Why do you think it is important to have a membrane surrounding each of our trillions of cells? Expect varying answers, but the idea is have the students understand the plasma membrane separates the cells from their environment and each other while also regulating the material within each cell. 2. What are two distinctive physical features of phospholipids? Heads are polar (water soluble…

Words 1377 - Pages 6

Early Filtrate Processing Essay

Pathways • To be reabsorbed into the blood, substances in the filtrate must cross the barrier formed by the tubular cells. • There are two reabsorption pathways: 1. the transcellular pathway 2. the paracellular pathway • Most solutes that are reabsorbed use the transcellular pathway. They diffuse or are actively transported through the luminal and basolateral membranes of the tubular cells into the interstitial space and then into the peritubular capillaries. • The second pathway is the paracellular…

Words 4962 - Pages 20

Essay about Midterm study guide

N3: Human Physiology for the Health Professions Summer, 2014 Midterm 1 Study Guide General Notes to studying: At the end of each lecture are summary slides. These slides indicate what is important in the lecture. Note: study guide posted on Monday, August 11th and represents material covered through Tuesday’s lecture #5. Exam will cover material through Thursday, August 14th lecture #6. Summary slides at end of Thursday’s lecture will provide study guide for that lecture. Lecture 1: How do the general p…

Words 511 - Pages 3

Cell and Surface Area Essay

FOCUS 1- Organisms are made of cells that have similar structural characteristics Key Terms: * Cell: The basic structural and functional unit of all organisms * Theory: A supposition or a system of ideas intended to explain something, esp. one based on general principles independent of the thing to be explained * Electron Microscope: A microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons…

Words 5219 - Pages 21

Cell Energy Essay

Student Name:_________________________________________________ BIO-QUEST: Cell Biology Directions: In this module, we will explore the basic units of life, their structure, function, and energy processes. To do this, you are going to explore a variety of resources, including your text, videos, and websites, to find answers to questions provided. The Bio-Quest is your guide to discovery in our modules and serves to help you navigate the material and focus on the key elements, big concepts, and…

Words 741 - Pages 3

Essay on 1221965132 2008 Biology Notes

Patterns In Nature 1. Organisms are made of cells that have similar structural characteristics OUTLINE THE HISTORICAL DEVELOPMEMT OF THE CELL THEORY, IN PARTICULAR, THE CONTRIBUTIONS OF ROBERT HOOKE AND ROBERT BROWN In 1665 Robert Hooke observed cork cells using a compound microscope and described ‘little boxes or cells distinct from one another’ In 1831 Robert Brown observed the nucleus in plant and animal cells The Cell Theory; 1. Cells are the smallest units of life (Schwann, Schleiden – 1839)…

Words 2581 - Pages 11

An Overview Of Respiration

An Overview of Respiration I. Metabolism and Cell Respiration A. Metabolism, the chemical reactions in an organism, has two complementary parts: 1. Synthesis reactions- which combine small, simple organic molecules to form more complex compounds such as, proteins and nucleic acids, for cell growth and maintenance(these reactions consume energy) 2. Decomposition reactions- which release energy by breaking down organic food molecules. a. Organisms use this energy to make ATP, the major energy…

Words 1714 - Pages 7

Essay on Ap Biology Study Reading Guide Chapter 6

Name_______________________Period___________ Chapter 6: A Tour of the Cell Concept 6.1 Biologists use microscopes and the tools of biochemistry to study cells 1. The study of cells has been limited by their small size, and so they were not seen and described until 1665, when Robert Hooke first looked at dead cells from an oak tree. His contemporary, Anton van Leeuwenhoek, crafted lenses and with the improvements in optical aids, a new world was opened. Magnification and resolving power limit…

Words 3589 - Pages 15

Adenosine Triphosphate and Electron Transport Chain Essay

macromolecules 1. 2. 3. 4. What do all of these macromolecules have in common? Carbohydrates Define Polymer- Monosaccharides- made up of ____ carbohydrate molecule 2 examples- Monosaccarides are very important in providing ___________ for the cell. All monosaccharides have the same basic formula, which is ______________. The differences in the behaviors of those molecules has to do with the _____________ of the molecule. Disaccharides- 2 examples- Polysaccharides- What accounts for the…

Words 2348 - Pages 10

Science 230 Essay

Answer Key for Cell Energy Assignment, Due in Week Three Cellular respiration: What is cellular respiration and what are its three stages? It is the “aerobic harvesting of chemical energy from organic fuel molecules” (Simon, Reece, & Dickey, 2010, p. 94). The three stages are glycolysis, citric acid cycle, and electron transport. Refer to p. 96 of the text. What is the role of glycolysis? Include the reactants and the products. Where does it occur? The role of glycolysis is to split…

Words 599 - Pages 3