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Structure & Function of K + Channels

Structure & Function of K + Channels

Structure & Function of K + Channels. Roderick MacKinnon et al. 1998 - Nobel prize in Chemistry 2003. Motivation – K + Channels are. Essential for neural communication & computation. Voltage-gated ion channels are life’s transistors. Efficient

By Jims
(410 views)

Water regulation in the kidney

Water regulation in the kidney

Water regulation in the kidney. The loop of Henle. The descending limb of the loop of Henle is permeable to water The ascending limb is impermeable. Na + and Cl - ions are actively transported out of the ascending limb and passively move into the descending limb.

By ashley
(318 views)

About Science Prof Online PowerPoints

About Science Prof Online PowerPoints

About Science Prof Online PowerPoints.

By peony
(86 views)

Liquid Conductivity The creating and testing of a conductivity meter.

Liquid Conductivity The creating and testing of a conductivity meter.

Liquid Conductivity The creating and testing of a conductivity meter. TEAM I Pedro Guerrero Roc-Quelle Barksdale Jamia Pugh. INTRODUCTION. Conductivity measures a materials ability to conduct an electrical current. Its measured in µS/cm

By morela
(221 views)

Human Biology

Human Biology

Human Biology. Chapter 2 Chemistry of living things Atoms/Elements Bonds Water pH Molecules of life Carbohydrates *Proteins Lipids *Nucleic Acids. All Matter Consists of Elements Made of Atoms. Chemistry The study of matter Atoms, the smallest functional unit, consist of

By tomasso
(237 views)

Chapter 8

Chapter 8

Chapter 8. Acids and Bases. Mathematical Preliminary. Logarithms – a logarithm is an exponent on some base. Two most frequently used bases for logarithms: 10 (called common logarithms, usually shown as log 10 X or log X)

By cameo
(118 views)

Mushing along in Chapter 4

Mushing along in Chapter 4

Mushing along in Chapter 4. Currently moving through Chapter 4. Sort of breaks down like this… Three classes of reactions (that take place in water) Acid Base Precipitation Oxidation Reduction (Redox). Applications Redox chem in everyday life

By cicada
(58 views)

The pH concept

The pH concept

The pH concept. [H + ] is cumbersome so the pH scale was created. pH is the negative logarithm of the hydrogen-ion concentration. pH = -log[H + ]. Sample pH problems 1 of 3. The hydrogen-ion concentration of a solution is 2.7 x 10 -10 mol/L. What is the pH of the solution. Answer

By lecea
(136 views)

Strength of Acids and Bases

Strength of Acids and Bases

Strength of Acids and Bases. By Melissa Martin and McKenna Halligan . Strength Of Acids and Bases. The extent to which the acid or base ionises or dissociates in water. Strong acids and bases are electrolytes that dissociate/ ionize almost completely in water.

By nita
(112 views)

Ion Conductance and Patch Clamp Methods

Ion Conductance and Patch Clamp Methods

Ion Conductance and Patch Clamp Methods. February 3, 2012. Housekeeping. Crawdad Care: You are responsible for MONDAY ONLY!. Review: Four laws Govern Ion Movement. Fick’s Law of Diffusion Ohm’s Law of Drift Einstein’s Relationship Between Diffusion and Drift Space-charge Neutrality

By mead
(279 views)

Week 2 Membrane Potential and Nernst Equation

Week 2 Membrane Potential and Nernst Equation

Week 2 Membrane Potential and Nernst Equation. Key points for resting membrane potential. Ion concentration across the membrane E ion : Equilibrium potential for an ion, and how to use Nernst Equation to calculate it driving force = V m – E ion

By diza
(221 views)

Measuring Concentration of Ions in Solution

Measuring Concentration of Ions in Solution

Measuring Concentration of Ions in Solution. Molarity is ONE way to do this…we will learn others later in the year!!!. Molarity. Molarity (M) =Mole of solute/liter of solution What do we have to be careful about when solving for molarity? Is amount of solute given in moles?

By kanan
(143 views)

Central Nervous System

Central Nervous System

Central Nervous System. The Brain. about 100 billion multipolar neurons. Divided into 4 major sections Brain stem Cerebellum Diencephalon Cerebrum. Protective covering. meninges. Blood-brain barrier.

By bikita
(92 views)

Discussion topic for week 5 : Enzyme reactions

Discussion topic for week 5 : Enzyme reactions

Discussion topic for week 5 : Enzyme reactions The lock in key hypothesis (Emil Fischer) asserts that both the enzyme and the substrate possess specific complementary geometric shapes that fit exactly into one another. What are the problems associated with this hypothesis?.

By pepin
(55 views)

Self Ionisation of Water

Self Ionisation of Water

Self Ionisation of Water. Water undergoes Self Ionisation H 2 O (l) ⇄ H + (aq) + OH - (aq) or H 2 O (l) + H 2 O (l) ⇄ H 3 O + (aq) + OH - (aq) The concentration of H + ions and OH- ions is extremely small.

By herb
(150 views)

Water Hardness

Water Hardness

Water Hardness. Water Hardness. Definition Concerns Scaling Cleaning Public Health. Causes. Table 19.1. Principle cations causing hardness in water and the major anions associated with them. From USGS. Sources. Water Hardness Rating. From USGS. Methods of Determination.

By kyoko
(209 views)

Solubility Product

Solubility Product

Solubility Product. Solubility Product Constant. A special case of equilibrium involving dissolving. Solid  Positive Ion + Negative Ion. Mg(NO 3 ) 2  Mg 2+ + 2NO 3 -. Keq = [ Mg 2+ ] [NO 3 - ] 2.

By felice
(421 views)

AIM:) What is pH and how can we determine it?

AIM:) What is pH and how can we determine it?

AIM:) What is pH and how can we determine it?. DO NOW: What are some unique properties of water? What are these properties the result of? Why does ice float in water? VOCABULARY: isotope, covalent bond, ionic bond, hydrogen bonds, cohesion, adhesion, pH, solution, acid, base

By ninon
(86 views)

The Chemistry of Acids and Bases

The Chemistry of Acids and Bases

The Chemistry of Acids and Bases. Acid and Bases. Acid and Bases. Acid and Bases. Acids. Have a sour taste. Vinegar is a solution of acetic acid. Citrus fruits contain citric acid. React with certain metals to produce hydrogen gas.

By barny
(156 views)

The Chemical Foundations of Life

The Chemical Foundations of Life

The Chemical Foundations of Life. The Chemical Foundations of Life What is Chemistry?. Chemistry is the study of the properties of Matter—living and nonliving , and the transformation of all forms of matter Biochemistry is the study of chemical reactions that occur in organisms. Solids.

By limei
(135 views)

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