Resting membrane potentials Definition: Large nerve fibers when not transmitting nerve signals is about 90 millivolt. That is‚ the potential inside the fiber is 90 millivolts more negative than the potential in the extracellular fluid on the outside of the fiber. The Na+-k+ pump also causes large concentration gradients for sodium and potassium across the resting nerve membrane. These gradients are the following: Sodium ( outside): 142 mEq/L Sodium ( inside): 14 mEq/L Potassium ( outside):
Premium Potassium Muscle Action potential
The most common consequence of teenagers’ sexual unawareness of what is right and what is wrong is unwanted pregnancy. Upon watching the film Juno‚ despite my knowledge of this phenomenon‚ I have been motivated to relate what I had watched to the reality in the Philippine society of how Filipino teenagers would most likely deal with the said situation. Before pointing out similarities and differences‚ I want to start first from the reasons why Filipino teenagers engage in premarital sex that
Premium Pregnancy Teenage pregnancy Adolescence
1) Which term refers to a set of independent organizations involved in the process of making a product or service available for use or consumption? A) value chain B) supply chain C) marketing channel D) wholesale consortium E) multinational enterprise 2) A marketing channel strategy is a set of activities focused on designing and managing a marketing channel for the purpose of ________. A) expanding a firm’s position in niche markets B) improving a firm’s sustainable competitive advantage C)
Premium Marketing Management Business
BioLab3 Cell Membranes Lab Report Student Name: I. Diffusion Define the following terms. Solvent Solute Solution. Diffusion Concentration gradient Dynamic equilibrium EXERCISE 1 – Factors influencing rate of diffusion Predict how molecule size and temperature will affect the outcome of this experiment. Record the data from the information in the lab. Potassium Permanganate R.T. Methylene Blue R.T. Time (min) Total Diameter
Premium Osmosis Cell membrane Diffusion
Lynne Knight Student No: 0590348 24th October 2011 Examine the view that cultural factors provide the most likely explanation for underachievement for some pupils. In the society we live in‚ one of its major institutions is Education. In the National Curriculum‚ certain guidelines are set out for a National expected level of achievement for each year group. Some pupils achieve a much higher level than this guideline‚ whereas others fall significantly below this. It is believed that
Premium Education School Teacher
There are many kind of cell membrane disease‚ There are : Cystic Fibrosis Cystic Fibrosis is a disease that cause by gene mutation of CFTR Protein. CFTR it’s stand for Cystic fibrosis transmembrane conductance regulator. This disease causes too much production of thick mucus‚ then the mucus will blocked the ion transport in epithelial cells that line the passageways of the lungs‚ pancreas‚ and other organs. If the passageways of the lungs is blocked by the thick mucus‚ it will make the sufferer
Premium Cystic fibrosis Protein Muscular dystrophy
freely‚ resulting in very different sized cubes‚ especially for the 1cm x 1cm x 1 cm cubes. All the cubes also had slightly diagonal edges. | One could use laser machines‚ as university level experimenters do‚ knife machines (which work by having knives attached to a machine which moves these knives the exact amount electronically imputed on it) or simply cookie cutters or anything that has a fixed shape to it. These are all realistic suggestions‚ although the price range varies. | As the aim of the
Premium Chemical kinetics Geometry Volume
Which Macro-Economic Objectives is the most important and why? (14) There are many different objectives within Macro-Economics however the most important are between Inflation‚ Unemployment‚ Balance of Payments and Economics Growth. Personally I believe inflation is the most important. So why do I believe Inflation is the most important. Well‚ firstly Low inflation is a main macro economics goal for western countries. This is because of the many factors of inflation. One for example is that a higher
Premium Inflation Economics Unemployment
1 Experiment Membrane Transport Objectives ► Referring to energy‚ what two ways can substances enter a cell? What is active transport? What is passive transport? How is osmosis related to diffusion? How can we demonstrate active transport? How can we demonstrate Brownian movement? How can we demonstrate diffusion (2 ways)? How can we demonstrate osmosis (3 ways)? In terms of relationships between substances‚ how can we define “hypertonic”‚ “isotonic”‚ and “hypotonic”? What is the relationship
Premium Osmosis Diffusion Chemistry
Transport Across The Plasma Membrane Intracellular Fluid (ICF) – The two thirds of your body fluid contained inside body cells. (Intra = within). The cytosol of the cell. Extracellular Fluid (ECF) – Fluid outside the body cells. (extra = outside). Interstitial Fluid – The ECF in tiny spaces between cells (inter = between). Plasma- the ECF in blood vessels. Lymph- The ECF in lymphatic vessels. Solute – Any material dissolved in fluid. Solvent- The fluid a Solute is dissolved in. Concentration
Premium Cell membrane Cell Diffusion