Calculate partial pressure of O 2 at Sea level Nitrogen78.08% Oxygen20.95% Water Vapor0 to 4 % Argon0.93% Carbon Dioxide0.036% Neon0.0018% Helium0.0005%

Slides:

Advertisements

Similar presentations

Early atmosphere ~4.5 billion years ago Mostly Hydrogen and Helium Escaped into space Outgassing of water vapor and CO2 created a secondary atmosphere.

Advertisements

Click to listen Early atmosphere ~4.5 billion years ago Mostly Hydrogen and Helium Escaped into space Outgassing of water vapor and CO2 created a secondary.

Science Warm-Up Look at the plastic bottle is there anything in it? How do you know? Pg 2.

Lectures on respiratory physiology

Oxygen and Carbon Dioxide transport in the blood

Units, Definitions and O2 Availability

One blood cell contains about 280 million molecules of haemoglobin What is this?

Dr Archna Ghildiyal Associate Professor Department of Physiology KGMU Respiratory System.

Figure 49.2 The Double Bind of Water Breathers. Figure 49.3 Gas Exchange Systems.

© 2013 Pearson Education, Inc. Chapter 7, Section 9 General, Organic, and Biological Chemistry Fourth Edition Karen Timberlake 7.9 Partial Pressures (Dalton’s.

Pulmonary Function During Exercise. The Respiratory System Provides gas exchange between the environment and the body Regulates of acid-base balance during.

The Respiratory System: Gas Exchange and Regulation of Breathing

H.6 Gas Exchange. Hemoglobin  Hemoglobin is a protein found in RBC’s composed of 4 polypeptides, each polypeptide containing a heme group. Each heme.

Chapter 6 The Respiratory System and Its Regulation.

Respiratory Partial Pressure Primary determinant of diffusion and direction Describes the pressure of a particular gas within a mixture Equals the total.

Respiratory pigments bind and transport gases

Chapter 6 The Respiratory System and Its Regulation.

The Bohr effect Fetal haemoglobin Myoglobin

Bound and Dissolved Oxygen in the Blood of Most Animals.

Greenhouse Gases and Energy Budget LP 3 1. What are the greenhouse gases? Where do they come from? How do they work? 2.

The Air Around You Section 15:1.

Greenhouse Gases and Energy Budget LP 3 1. What are the greenhouse gases? Where do they come from? How do they work? 2.

GASES. Identify the abundances of the naturally occurring gases in the atmosphere. Describe the historical development of the measurement of pressure.

GASES. Identify naturally occurring atmospheric gases. Examine the historical development of pressure. Include: Torricelli, Pascal Describe the various.

GASES. Identify the abundances of the naturally occurring gases in the atmosphere. Describe the historical development of the measurement of pressure.

For Your Enjoyment. Composition  Main components  78% Nitrogen  21% Oxygen  1% Argon  Trace components  Carbon dio/monoxide  Krypton  Hydrogen.

1 Partial Pressure Pressure of individual gases in a mixture.

Gases Review. Pressure Conversions kPa = ________atm.

Composition  Nitrogen (N 2 ): 78%  Oxygen (O 2 ): 21%  Other Gases: 1% Argon (Ar): 0.934% Carbon Dioxide (CO 2 ): 0.037% Water Vapor (H 2 O): 0.01.

Air and the Atmosphere.

The Atmosphere.

Homework Check (The Ideal Gas Law) 1.If I contain 3 moles of gas in a container with a volume of 60 L at a temperature of 400 K, what is the pressure inside.

HOMEOSTASIS WITHIN THE CIRCULATORY & RESPIRATORY SYSTEMS AP BIOLOGY: BIG IDEA #2 & #4.

Greenhouse Effect.  The greenhouse effect is the warming of the surface and lower atmosphere of Earth that occurs when carbon dioxide, water vapor, and.

Case Studies of Important Scientific and Technological Issues Nature and Development of Science and Technology.

Greenhouse Gases and Energy Budget LP 3 1. What are greenhouse gases? Where do they come from? How do they work? 2.

The Atmosphere Notes 7th Grade Science.

DEPARTMENT OF MUNICIPAL HYGIENE AND OCCUPATIONAL HEALTH LECTURE ON ENVIRONMENTAL SANITATION FOR 4TH YEAR TOPIC: PROBLEMS OF AIR POLLUTION RESIDENTIAL.

DALTON’S LAW OF PARTIAL PRESSURE

Transport of gases in the blood.   Gas exchange between the alveolar air and the blood in pulmonary capillaries results in an increased oxygen concentration.

Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings Concept 42.7: Respiratory pigments bind and transport gases The metabolic demands.

Nitrogen 78% Oxygen 21% Gases in Dry Air Trace Gases 1% Trace Gases Percentage by Volume Argon Carbon dioxide Neon Helium Methane Krypton Hydrogen 0.93.

Composition of the atmosphere. Composition of the Atmosphere ▪Composition = what something is made of. ▪ “Air” is all around us and it behaves often like.

PART 2. To understand how carbon dioxide influences haemoglobin (The Bohr Effect).

Biology 2672a: Comparative Animal Physiology

Chapter 14 By: Vanessa LaTorre.  Atmosphere - thin envelope/layer of gas around Earth  Gases stretch 375 miles above sea level  Composed of gases known.

Mammalian Transport System

Gay-Lussac’s LawGay-Lussac’s Law  Pressure and temperature relationship  Pressure results from molecular collisions  Pressure of gas is DIRECTLY proportional.

1. 2 Partial Pressure Pressure of individual gases in a mixture.

Our Security Blanket.  1. Gases surrounding the planet held there by gravity.  2. Protects life by absorbing ultraviolet radiation.  3. Reduces temperature.

Atmospheric Pressure Science 10. Why Does Atmospheric Pressure Exist?  Because the air in the atmosphere is pulled toward the Earth by Gravity  Currently.

Avogadro's Principle “Equal volumes of gases at the same temperature and pressure contain equal numbers of particles” It doesn’t matter what type of gas.

Homeostasis within the Circulatory & respiratory Systems AP Biology: Big Idea #2 & #4 Chapter 42.

The variety of life: Haemoglobin

The Air Around You Section 15:1.

Oxygen and Carbon dioxide Transport

Transport of Respiratory Gases

Weather Unit (DPI) Laura LeMay.

Earth’s Atmosphere p. D6-9.

Maximum Inversion Temperature [K] Gas Maximum Inversion Temperature [K] Helium-4 45 Hydrogen 205 Neon 250 Nitrogen 621 Air 603 Carbon monoxide 652.

The Atmosphere.

Composition And Origin

The Atmosphere.

Maximum Inversion Temperature [K] Gas Maximum Inversion Temperature [K] Helium-4 45 Hydrogen 205 Neon 250 Nitrogen 621 Air 603 Carbon monoxide 652.

Oxygen and Carbon dioxide Transport

Presentation transcript:

Calculate partial pressure of O 2 at Sea level Nitrogen78.08% Oxygen20.95% Water Vapor0 to 4 % Argon0.93% Carbon Dioxide0.036% Neon0.0018% Helium0.0005% Methane % Hydrogen % Nitrous Oxide % Ozone % What’s in our air? P gas a = Gas a X P total Gas mix

The respiratory pigments… Why are they important? 100X increase!

O 2 -Hb dissociation curves: Describe activity of Hb at different P O 2 % saturation PO2PO2

O 2 -Hb dissociation curves: P 50 is a measure of O 2 affinity Hb with a high affinity has a lower P 50 Animals that have Hb with high affinity: Hb is saturated when O 2 concentrations are relatively low b/c Hb will not release O 2 unless O 2 levels are very low this kind of Hb favors O 2 uptake (loading) Hb with a low affinity has a higher P 50 Animals that have Hb with low affinity: Hb is only saturated when O 2 concentrations are relatively high b/c Hb is more likely to “let go” of O 2, even if O 2 levels are pretty high this kind of Hb favors O 2 delivery (offloading) HIGH AFFINITY LOW AFFINITY

Comparing dissociation curves… myoglobin P 50 % saturation P O 2 (mmHg) hemoglobin

Weddell Seal Harbor seal Human

Comparing Total O 2 Stores: