is potassium (K+) t Most prevalent anion is phosphate (PO4-) Extracellular Fluid (ECF) t Fluid spaces between cells (interstitial fluid) and the plasma space t Interstitial l Most prevalent anion is chloride (Cl-) l Most prevalent cation is sodium (Na+) l Expands and contracts l 2/3 of ECF in interstitium t Intravascular (IV) l Within vascular space l Measured with blood tests l 1/3 of ECF Transcellular Fluid t Small but important fluid compartment t Approximately 1L t Includes fluid
Premium Potassium Sodium Renal failure
Lithium‚Sodium‚Potassium‚Rubidium‚Caesium and Francium are all part of group 1.They are metals that can be easily cut.After being cut‚it is shiny but it quickly tarnishes due to the fact that the metal reacts quickly with oxygen or water.The shiny surfaces of Sodium quickly tarnishes more quickly than Lithium and Potassium more tarnishes more quickly than Lithium.This shows that the reactivity increases as we move down the group. Figure 1 Elements Melting point Boiling point Thermal
Premium Chemical element Periodic table Chemistry
following would decrease the rate of facilitated diffusion? decreasing the number of carrier proteins What happens to facilitated diffusion when the protein carriers become saturated? The maximum rate of transport will occur. What happened when sodium chloride was added as a solute in the left beaker? There was no change in the transport rate of glucose. Which of the following statements about carrier proteins is FALSE? They assist in simple diffusion. Which of the following statements about
Premium Diffusion Adenosine triphosphate Ion
important safety feature in vehicles. Sodium azide‚ potassium nitrate and silicon dioxide have been used in one design of airbag. [Source: www.hilalairbag.net] Sodium azide‚ a toxic compound‚ undergoes the following decomposition reaction under certain conditions. 2NaN 3 (s) → 2Na (s) + 3N 2 (g) Two students looked at data in a simulated computer-based experiment to determine the volume of nitrogen generated in an airbag. (a) Sodium azide involves ionic bonding‚ and
Free Oxygen Nitrogen Sodium
Chemicals in Food Chemicals are added to food for (i) their preservation‚ (ii) enhancing their appeal‚ and (iii) adding nutritive value in them. Main categories of food additives are as follows: (i) Food colours (ii) Flavours and sweeteners (iii) Fat emulsifiers and stabilising agents (iv) Flour improvers – antistaling agents and bleaches (v) Antioxidants (vi) Preservatives (vii) Nutritional supplements such as minerals‚ vitamins and amino acids. Except for chemicals of category (vii)‚ none
Premium Sodium hydroxide Soap Sodium
hypothalamus‚ the osmoreceptor cells of which sense the internal environment -the hormone‚ antidiuretic hormone (ADH)‚ which controls the amount of fluid leaving the body in the urine -The hormone aldosterone‚ which determines the reabsorption of both sodium ions and water from the kidney tubules -The hormone atrial natriuretic peptide (ANP) is a hormone synthesized and released by the myocardial cells in the atrium of the heart. -Filtration and osmosis -Water moves between the vascular compartment
Premium PH Sodium
the Rate of Reaction Between HCl and Sodium Thiosulfate Chemistry Lab report Aim: The aim of this experiment is to determine how concentrations of HCl acid affect the rate of reaction when reacted with Sodium Thiosulfate (Na2S2O3). This experiment would require measuring the mass of the reaction over a period of time to be able to determine the rate of the reaction. Safety Precautions: In this experiment‚ SO2 gas is produced from the reaction between Sodium Thiosulfate and HCl‚ and this can be dangerous
Premium Chemical reaction Chemistry
whether different amounts of a particular chemical would affect the action potential. 7. Why does the addition of sodium chloride elicit an action potential? Hint: Think about the sodium permeability of the neuron (Figure 3.2e). The addition of sodium chloride will increase the sodium ion concentration outside the cell membrane. The sodium channels will open allowing sodium ions to enter the cell in hopes of equilibrium (depolarization). The cell will balance this polarity and pump
Premium Action potential Neuron Sodium
Reaction.’ The rate of the reaction will be measured by timing the reaction between Hydrogen Peroxide‚ Potassium iodide‚ and Sodium Thiosulphate. Sodium Thiosulphate is used as a delaying mechanism as the reaction between the two main reactants is too rapid to measure. The Sodium Thiosulphate will react with the Iodine [III] ions (the product) first and when the all the Sodium Thiosulphate has reacted‚ then the remaining Iodine ions will form a blue-black solution because of the addition of Starch
Premium Hydrogen peroxide Sodium Chemical reaction
The Lipid Barrier of the Cell Membrane‚ and Cell Membrane Transport Proteins The structure of the membrane covering the outside of every cell of the body is discussed in Chapter 2 and illustrated in Figures 2–3 and 4–2.This membrane consists almost entirely of a lipid bilayer‚ but it also contains large numbers of protein molecules in the lipid‚ many of which penetrate all the way through the membrane‚ as shown in Figure 4–2. The lipid bilayer is not miscible with either the extracellular
Premium Sodium Ion Diffusion