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Effect of CO₂ on the oxygen binding affinity of hemoglobin
The Bohr effect is a phenomenon first described in 1904 by the Danish physiologist Christian Bohr (who was also the father of the physicist and Nobel
Bohr_effect
Danish physician and professor of physiology
involved in gas exchange. In 1904, Christian Bohr described the phenomenon, now called the Bohr effect, whereby hydrogen ions ( H+) and carbon dioxide
Christian_Bohr
Property of hemoglobin and oxygenation
It is far more important in promoting CO2 transport than the related Bohr effect is in promoting O2 transport. It was first described by John Scott Haldane
Haldane_effect
Unit of length about the size of a hydrogen atom
almost equal to the Bohr radius. (It is not exactly the Bohr radius due to the reduced mass effect. They differ by about 0.05%.) The Bohr model of the atom
Bohr_radius
Class of enzymes
pressure. Carbonic anhydrase is critical to hemoglobin function via the Bohr effect which catalyzes the hydration of carbon dioxide to form carbonic acid
Carbonic_anhydrase
Danish physicist (1885–1962)
Niels Henrik David Bohr (/niːlz bɔːr/; Danish: [ˈne̝ls ˈpoɐ̯ˀ]; 7 October 1885 – 18 November 1962) was a Danish theoretical physicist who made foundational
Niels_Bohr
Physiological phenomenon in fish hemoglobin
The Root effect is to be distinguished from the Bohr effect where only the affinity to oxygen is reduced. Hemoglobins showing the Root effect show a loss
Root_effect
Atomic model introduced by Niels Bohr in 1913
In atomic physics, the Bohr model or Rutherford–Bohr model is an obsolete model of the atom that incorporated some early quantum concepts. Developed from
Bohr_model
Predecessor to modern quantum mechanics (1900–1925)
Zeeman effect, except for the issue of electron spin. Sommerfeld's model was much closer to the modern quantum mechanical picture than Bohr's. Throughout
Old_quantum_theory
Topics referred to by the same term
Bohr's law may refer to: Bohr model Bohr effect Bohr equation Gunslinger effect This disambiguation page lists articles associated with the title Bohr's
Bohr's_law_(disambiguation)
Compound of hemoglobin and carbon dioxide
which promotes the separation of carbon dioxide from hemoglobin. pH: The Bohr effect outlines how the binding and release of oxygen and carbon dioxide by
Carbaminohemoglobin
Metalloprotein that binds with oxygen
oxygen by the binding of carbon dioxide and acid is known as the Bohr effect. The Bohr effect favors the T state rather than the R state. (shifts the O2-saturation
Hemoglobin
Visual tool used to understand how human blood carries and releases oxygen
hemoglobin binds less O2 for a given PO2 (and more H+). This is known as the Bohr effect. A reduction in the total binding capacity of hemoglobin to oxygen (i
Oxygen–hemoglobin dissociation curve
Oxygen–hemoglobin_dissociation_curve
Unit of magnetic moment
In atomic physics, the Bohr magneton (symbol μB) is a physical constant and the natural unit for expressing the magnetic moment of an electron caused by
Bohr_magneton
effect (astronomy) Blocking effect (psychology) Bloom (shader effect) (3D computer graphics) (demo effects) Bohr effect (hematology) (hemoproteins) (respiratory
List_of_effects
Extension of the Bohr model
The Bohr–Sommerfeld model (also known as the Sommerfeld model or Bohr–Sommerfeld theory) was an extension of the Bohr model to allow elliptical orbits
Bohr–Sommerfeld_model
State of reduced carbon dioxide in the blood
available to the brain due to the elevated affinity of oxygen to hemoglobin (Bohr effect), causing an elevated risk of cerebral hypoxia and loss of consciousness
Hypocapnia
Medical condition involving hyperventilating
vital organs due to low-CO2-induced vasoconstriction and the suppressed Bohr effect. The hyperventilation is self-promulgating as rapid or deep breathing
Hyperventilation_syndrome
Topics referred to by the same term
Province, Iran Bohr-e Hajj Nowshad, a village in Bushehr Province, Iran Bohr effect, a property of hemoglobin discovered by Christian Bohr Bohr magneton, a
Bohr_(disambiguation)
Series of public disputes between physicists Niels Bohr and Albert Einstein
The Bohr–Einstein debates were a series of public disputes about quantum mechanics between Albert Einstein and Niels Bohr. Their debates are remembered
Bohr–Einstein_debates
Theorem on magnetism
The Bohr–Van Leeuwen theorem states that when statistical mechanics and classical mechanics are applied consistently, the thermal average of the magnetization
Bohr–Van_Leeuwen_theorem
Chemical compound
function of embryonic hemoglobin is carried out in large part to the Bohr Effect, an effective exchange between carbon dioxide and oxygen. The protein
Embryonic_hemoglobin
Physical constant in quantum mechanics
influenced the development of Niels Bohr 's atomic model and Bohr quoted him in his 1913 paper of the Bohr model of the atom. Bohr's model went beyond Planck's
Planck_constant
Electromagnetic effect in physics
the Bohr atom is linear but not inverse in the integer n. Relativistic examples of the integer quantum Hall effect and quantum spin Hall effect arise
Quantum_Hall_effect
Species of cephalopod
combines with water to form carbonic acid, which decreases blood pH. The Bohr effect explains why oxygen concentrations are lower in venous blood than arterial
Common_octopus
Body fluid in the circulatory system
will cause offloading of oxygen from hemoglobin, which is known as the Bohr effect. Some oxyhemoglobin loses oxygen and becomes deoxyhemoglobin. Deoxyhemoglobin
Blood
Oxygen carrier protein in the human fetus
alkaline and favors the uptake of oxygen. This is called the Bohr effect or Haldane effect, which also happens in the air exchange in the lungs. All of
Fetal_hemoglobin
Oxygen-delivering blood cell and the most common type of blood cell
capillary, act to reduce the oxygen binding affinity of hemoglobin, the Bohr effect. The second major contribution of RBC to carbon dioxide transport is
Red_blood_cell
Public university in Copenhagen, Denmark
bacteriologist, inventor of Gram staining Christian Bohr (1855–1911), Danish physician, who described Bohr effect Wilhelm Johannsen (1857–1927), Danish botanist
University_of_Copenhagen
Bodenstein Bohm sheath criterion – David Bohm Bohr effect – Christian Bohr Bohr magneton, model, radius – Niels Bohr Boltzmann constant – Ludwig Boltzmann Bonnor–Ebert
Scientific phenomena named after people
Scientific_phenomena_named_after_people
Chemical element with atomic number 8 (O)
bright red (CO 2 is released from another part of hemoglobin through the Bohr effect). Other terrestrial invertebrates use hemocyanin (molluscs and some arthropods)
Oxygen
Force resulting from the quantisation of a field
form is called the Casimir–Polder force. After a conversation with Niels Bohr, who suggested it had something to do with zero-point energy, Casimir alone
Casimir_effect
Psychophysical theory
The gunslinger effect, also sometimes called Bohr's law or the gunfighter's dilemma, is a psychophysical theory which says that an intentional or willed
Gunslinger_effect
Conduit between embryo/fetus and the placenta
increases the uptake of oxygen from the maternal blood as a result of the Bohr effect. In turn, this increased amount of oxygen increases the rate at which
Umbilical_cord
Chemical coordination complex of an iron ion chelated to a porphyrin
concentration of carbon dioxide, is known as the Bohr effect. The molecular mechanism behind this effect is the steric organization of the globin chain;
Heme
Carbon-oxygen gas
will cause offloading of oxygen from hemoglobin, which is known as the Bohr effect. Carbon dioxide is one of the mediators of local autoregulation of blood
Carbon_dioxide
Theory in quantum mechanics
In the history of quantum mechanics, the Bohr–Kramers–Slater (BKS) theory was perhaps the final attempt at understanding the interaction of matter and
BKS_theory
Fact that observing a situation changes it
(one-dimensional for simplicity) relating involved quantities, derived from Niels Bohr's 1928 paper "The Quantum Postulate and the Recent Development of Atomic Theory"
Observer_effect_(physics)
Quantum physics concept
complementarity is a conceptual aspect of quantum mechanics that Niels Bohr regarded as an essential feature of the theory. The complementarity principle
Complementarity_(physics)
Medical condition
(HbM Saskatoon and HbM Hyde Park) exhibit significant cooperativity and Bohr effect, displaying an increased oxygen affinity. Normal beta subunits in alpha-chain
Hemoglobin_M_disease
Chemical group (>N–C(=O)–O–)
bound to the protein. This stabilizing effect should not be confused with the Bohr effect (an indirect effect caused by carbon dioxide). The ε-amino groups
Carbamate
Complex of carbon monoxide and hemoglobin
to supply cells with oxygen for aerobic respiration via the Bohr effect and Haldane effect (and perhaps local low oxygen partial pressure e.g. active muscles)
Carboxyhemoglobin
Instinct to breathe through the nose rather than the mouth
PMID 17104162. Holcombe, SJ; Derksen, FJ; Stick, JA; Robinson, NE (1998). "Effect of bilateral blockade of the pharyngeal branch of the vagus nerve on soft
Obligate_nasal_breathing
released from bicarbonate, its major reservoir in blood plasma (see Bohr effect) Stwertka 1998, p. 48. Emsley 2001, p. 298. Cook & Lauer 1968, p. 500
Dioxygen in biological reactions
Dioxygen_in_biological_reactions
Attractive interaction between two molecules
change in local concentration causing dissociation can be found in the Bohr effect, which describes the dissociation of ligands from hemoglobin in the lung
Molecular_binding
Molecular mechanism
hemoglobin's affinity for oxygen increases with increasing pH, is known as the Bohr effect. A receptor molecule is said to exhibit cooperative binding if its binding
Cooperative_binding
Species of annelid
energy required to unbind oxygen from hemoglobin by utilizing the Bohr effect. The effect gradually compounds as the hemoglobin's 4 O2 binding sites are
Alvinella_pompejana
Spectral line splitting in magnetic field
are the Bohr magneton and nuclear magneton, respectively (note that the last term in the expression above describes the nuclear Zeeman effect), J → {\displaystyle
Zeeman_effect
quantization of Bohr's orbits. Simultaneously this showed that the wave behavior of light was essentially a quantum effect. De Broglie expanded Bohr's model of
History_of_quantum_mechanics
Genus of crabs
haemocyanin has a strong affinity for oxygen, and displays a significant Bohr effect, which is unaffected by lactic acid. Cyanagraea praedator is "by far
Cyanagraea
Theories of quantum chemistry explained via relativistic mechanics
right illustrates this relativistic effect as a function of velocity. This has an immediate implication on the Bohr radius ( a 0 {\displaystyle a_{0}}
Relativistic quantum chemistry
Relativistic_quantum_chemistry
found in muscle tissue. As described by the Bohr effect (named after Christian Bohr, the father of Niels Bohr), the oxygen affinity of hemoglobin diminishes
Iron_in_biology
Subdiscipline of chemistry concerned with chemical equilibrium
by Hb, as Hb + O2 ⇌ HbO2 but this representation is incomplete as the Bohr effect shows that the equilibrium concentrations are pH-dependent. A better
Equilibrium_chemistry
Thought experiment in quantum mechanics
Albert Einstein, to illustrate what Schrödinger saw as the problems of Niels Bohr and Werner Heisenberg's philosophical views on quantum mechanics. In Schrödinger's
Schrödinger's_cat
German-born theoretical physicist (1879–1955)
and Niels Bohr. This idea only became universally accepted in 1919, with Robert Millikan's detailed experiments on the photoelectric effect, and with
Albert_Einstein
Function describing an electron in an atom
explained the origin of spectral lines. After Bohr's use of Einstein's explanation of the photoelectric effect to relate energy levels in atoms with the wavelength
Atomic_orbital
Physical phenomenon
The Meitner–Auger effect is a physical phenomenon in which atoms eject electrons. It occurs when an inner-shell vacancy in an atom is filled by an electron
Auger_effect
Formula for spectral line wavelengths in alkali metals
The effect is to predict new series corresponding to τ 2 = 1 {\displaystyle \tau _{2}=1} in the extreme ultraviolet unknown to Rydberg. In Bohr's conception
Rydberg_formula
Physics principle formulated by Niels Bohr
working in Bohr's group in Copenhagen applied Bohr's correspondence principle to account for all of the known facts of the spectroscopic Stark effect, including
Correspondence_principle
Superstition that equipment only fails in the presence of certain people
1098/rsbm.1960.0014. S2CID 62478251. Wissenschaftlicher Briefwechsel mit Bohr, Einstein, Heisenberg u. a, Band 3 von Wolfgang Pauli, Karl von Meyenn, Herausgeber
Pauli_effect
Species of fish
marked Bohr effects, while cathodic hemoglobin lack significant pH effects. In H. littorale, cathodic hemoglobin has a pronounced reversed Bohr effect in
Hoplosternum_littorale
Spectral line splitting in electrical field
theory. While the first-order (linear) Stark effect in hydrogen is in agreement with both the old Bohr–Sommerfeld model and the quantum-mechanical theory
Stark_effect
Description of physical properties at the atomic and subatomic scale
explain the photoelectric effect, in which shining light on certain materials can eject electrons from the material. Niels Bohr then developed Planck's
Quantum_mechanics
Response of fish to environmental hypoxia
consequence of alkalizing the RBC is an increase in Hb-O2 affinity via the Bohr effect. The net influx of Na+ ions and the compensatory activation of Na+ /K+
Hypoxia_in_fish
Energy–frequency relation in quantum mechanics
Laloë (1973/1977), pp. 10–11. Kalckar, J., ed. (1985), "Introduction", N. Bohr: Collected Works. Volume 6: Foundations of Quantum Physics I, (1926–1932)
Planck_relation
periodical has ISBN (link) Jensen FB (November 2004). "Red blood cell pH, the Bohr effect, and other oxygenation-linked phenomena in blood O2 and CO2 transport"
Intracellular_pH
Chemical element with atomic number 26 (Fe)
found in muscle tissue. As described by the Bohr effect (named after Christian Bohr, the father of Niels Bohr), the oxygen affinity of hemoglobin diminishes
Iron
Function that "converges" to periodicity
well-distributed "almost-periods". The concept was first studied by Harald Bohr and later generalized by Vyacheslav Stepanov, Hermann Weyl and Abram Samoilovitch
Almost_periodic_function
Quantum mechanical property
{e\hbar }{2m}}=5.788\times 10^{-}5eV/T} , is the Bohr magneton. In a strong magnetic field, the Zeeman effect dominates and the unperturbed Hamiltonian is
Orbital_motion_(quantum)
skin cancer. Christian Bohr (1855–1911) Danish physician at the University of Copenhagen known for describing the Bohr effect, whereby hydrogen ions and
List_of_physiologists
Atom of the element hydrogen
1.6\times 10^{-11}{\text{ s}},} where a 0 {\displaystyle a_{0}} is the Bohr radius and r 0 {\displaystyle r_{0}} is the classical electron radius. If
Hydrogen_atom
Software bug that seems to change when debugging
bohrbug, by way of contrast, is a "good, solid bug". Like the deterministic Bohr atom model, they do not change their behavior and are relatively easily detected
Heisenbug
Principal energy levels in atomic physics
In 1913, Niels Bohr proposed a model of the atom, giving the arrangement of electrons in their sequential orbits. At that time, Bohr allowed the capacity
Electron_shell
American theoretical physicist (1911–2008)
in the United States after World War II. Wheeler also worked with Niels Bohr to explain the basic principles of nuclear fission. Together with Gregory
John_Archibald_Wheeler
American physicist (1908–1991)
transcript with John Bardeen on 12 May 1977, American Institute of Physics, Niels Bohr Library and Archives - Session I, interviewed by Lillian Hoddeson Oral History
John_Bardeen
Details in the emission spectrum of an atom
The explanation was first given by Niels Bohr in 1914, who suggested that the orbits of electrons in his Bohr model of the atom precessed due to relativistic
Fine_structure
Interpretation of quantum mechanics
from the work of Niels Bohr, Werner Heisenberg, Max Born, and others. While the name "Copenhagen" refers to the city where Bohr and Heisenberg worked,
Copenhagen_interpretation
1911 theoretical description of an atom
model for the atom. Niels Bohr joined Rutherford's lab and developed a theory for the electron motion which became known as the Bohr model. Throughout the
Rutherford_model
American biochemist
property for oxygen transport in blood and is often referred as the Bohr effect. While still at Guidotti's lab, Neer undertook independent research on
Eva_Neer
Quantum mechanical phenomenon
1103/PhysRev.33.127. Bethe, Hans (27 October 1966). "Hans Bethe – Session I". Niels Bohr Library & Archives, American Institute of Physics, College Park, Maryland
Quantum_tunnelling
that Bohr's model would also need to overcome. When Bohr learned from a friend about Balmer's compact formula for the spectral line data, Bohr quickly
History_of_atomic_theory
Danish physicist (1843–1917)
Royal Swedish Academy of Sciences in 1902. He was doctoral advisor to Niels Bohr. In 1912, he retired and Martin Knudsen became professor. Two-volume physics
Christian Christiansen (physicist)
Christian_Christiansen_(physicist)
2018 mixtape by YoungBoy Never Broke Again
production from Ben Billions, DJ Swift, DrellOnTheTrack, Dubba-AA, Eliot Bohr, PlayboyXO, Vintage Rippah, and several other producers. The mixtape serves
Realer_(mixtape)
The Ramsauer–Townsend effect, also sometimes called the Ramsauer effect or the Townsend effect, is a physical phenomenon involving the scattering of low-energy
Ramsauer–Townsend_effect
Solid-state electrically operated switch also used as an amplifier
ISBN 978-0-13-047065-2. Thompson, S. E.; Chau, R. S.; Ghani, T.; Mistry, K.; Tyagi, S.; Bohr, M. T. (2005). "In search of "Forever," continued transistor scaling one
Transistor
Philosophical thought experiment
point of view. While physicists and good friends Albert Einstein and Niels Bohr were equally instrumental in founding quantum mechanics, the two had very
If a tree falls in a forest and no one is around to hear it, does it make a sound?
If_a_tree_falls_in_a_forest_and_no_one_is_around_to_hear_it,_does_it_make_a_sound?
Emissions from unstable atomic nuclei
to break a chemical bond. This effect can be used to separate isotopes by chemical means. The Szilard–Chalmers effect was discovered in 1934 by Leó Szilárd
Radioactive_decay
Notation for conserved quantities in physics and chemistry
model of the atom, first proposed by Niels Bohr in 1913, relied on a single quantum number. Together with Bohr's constraint that radiation absorption is
Quantum_number
Dutch physicist (1894–1952)
December 1894 – 24 April 1952) was a Dutch physicist who worked with Niels Bohr to understand how electromagnetic waves interact with matter and made important
Hans_Kramers
Dimensionless number that quantifies the strength of the electromagnetic interaction
named by Arnold Sommerfeld, who introduced it in 1916 when extending the Bohr model of the atom. α {\displaystyle \alpha } quantified the gap in the fine
Fine-structure_constant
1914 confirmation of the atom's quantum nature
proved to be consistent with the Bohr model for atoms that had been proposed the previous year by Niels Bohr. The Bohr model was a precursor of quantum
Franck–Hertz_experiment
Historical critique of quantum mechanics
prolonged debate between Bohr and Einstein about the nature of quantum reality.) He argued that EPR had reasoned fallaciously. Bohr said measurements of position
Einstein–Podolsky–Rosen paradox
Einstein–Podolsky–Rosen_paradox
Mode of arrangement of electrons in different shells of an atom
However neither Bohr's system nor Stoner's could correctly describe the changes in atomic spectra in a magnetic field (the Zeeman effect). Bohr was well aware
Electron_configuration
Dutch physicist (1889–1950)
Coster–Kronig transition X-ray spectroscopy Auger effect Dirk Coster (1922). "Röntgenspectra en de atoomtheorie van Bohr" (PDF). "D. Coster (1889 - 1950)". Royal
Dirk_Coster
Type of non-planar transistor
A fin field-effect transistor (FinFET) is a multigate device, a MOSFET (metal–oxide–semiconductor field-effect transistor) built on a substrate where the
Fin_field-effect_transistor
Experiment in quantum physics
theory. They argued "Our results are not in accord with Bohr's interpretation of the Compton effect ... it is recommended therefore to retain until further
Bothe–Geiger coincidence experiment
Bothe–Geiger_coincidence_experiment
Russian-American physicist (1883–1966)
published 3 papers, on the explanations of the Stark effect, Zeeman effect and magnetic dipoles using Bohr's quantum theory. As well as quantum theory, Epstein
Paul_Sophus_Epstein
Physics experiment
observer. Niels Bohr interpreted quantum experiments like the double-slit experiment using the concept of complementarity. In Bohr's view quantum systems
Double-slit_experiment
Hypothetical type of nuclear reaction
to the other paths. This result is consistent with the predictions of the Bohr model. If 1 watt (6.242 × 1018 eV/s) were produced from ~2.2575 × 1011 deuteron
Cold_fusion
German-American physicist
also came in close contact with Max Born. In physics, it was the era of the Bohr atom model. The leaders of Göttingen science included many greats that Landé
Alfred_Landé
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