Bohr Samenvattingen, Notities en Examens

Hb (hemoglobin) binds to CO (carbon monoxide) with a higher affinity than oxygen and stabilizes the R (relaxed) state True When hemoglobin changes from the T to the R, it has a high affinity for oxygen True When hemoglobin changes from the R to T, it has a low affinity for oxygen True Cooperatively refers to structural changes that increases the affinity for oxygen in hemoglobin When the oxygen concentration is high, the heme shape is planar. When the oxygen concentration is low, t...

Bohr's model of the atom : Niels Bohr's description of electron arrangement in discrete energy levels. Energy transition : Electron movement between energy levels in an atom, emitting or absorbing energy. Excited state : State where an electron is at a higher energy level than the ground state. Ground state : Lowest energy level an electron can occupy in an atom. Photon : Quantum of electromagnetic radiation with energy related to frequency. 2 | P a g e Delta E : Energy differen...

AQA AS Physical Chemistry 2024 exam questions with 100% correct answers Who described atoms as solid spheres that make up different elements and when? - ANSWERS John Dalton in the 19th century Who suggested that atoms of a particular element had the same mass and atoms of different elements had different masses and when? - ANSWERS John Dalton in 1803 Who discovered the electron and when? - ANSWERS JJ Thomson, 1897 discovered electrons proving atoms weren't indivisible or solid. New m...

OCR 2023 GCSE Combined Science Physics A Gateway Science J250/11: Paper 11 (Higher Tier) Question Paper & Mark Scheme (Merged) COMBINED SCIENCE PHYSICS A Please write clearly in black ink. Do not write in the barcodes. Centre number Candidate number First name(s) Last name Oxford Cambridge and RSA Thursday 25 May 2023 – Morning GCSE (9–1) Combined Science A (Physics) (Gateway Science) J250/11 Paper 11 (Higher Tier) Time allowed: 1 hour 10 minutes INSTRUCTIONS • Use blac...

Hb (hemoglobin) binds to CO (carbon monoxide) with a higher affinity than oxygen and stabilizes the R (relaxed) state - True When hemoglobin changes from the T to the R, it has a high affinity for oxygen - True When hemoglobin changes from the R to T, it has a low affinity for oxygen - True Cooperatively refers to - structural changes that increases the affinity for oxygen in hemoglobin When the oxygen concentration is high, the heme shape is planar. When the oxygen concentration is low, t...

2024 CPPS Exam Review ( Notes ) Complete Answers 100% Correct 1. -The are held on loosely Answer: Valence Electrons 2. -determine the chemical properties of an element Answer: valence electrons 3. -To determine the number of electrons, use the Roman Numerals on the top of each group (except for Helium &Transition metals)- Answer: Valence Electrons 4. -These are the outermost electrons *the ones on the last orbital/energy level Answer: Valence Electrons 5. -include the elementsymbo...

LASERS CERTIFICATION EXAM QUESTIONS AND CORRECT ANSWERS, WITH COMPLETE SOLUTION 2024. Theorized the concept of stimulated emission Einstein Theorized that an excited electron will spontaneously return to its ground state Bohr First ruby laser was created in _____ by ______. 1960, Ted Maiman _________ reported in 1965 that a ruby laser could vaporize enamel. Stern and Sognnaes First pulsed Nd:YAG laser released in ______ and cuts ______ tissue. 1990, soft tissue In _____ the first de...

CLEP ChemistryJohn Dalton - correct answer Proposed that matter is composed of atoms; these atoms have different identities called elements, which combine to form compounds; measured masses of reactants and products. J.J. Thompson - correct answer Observed deflection of particles in a cathode ray tube; proposed that atoms are composed of positive and negative charges; developed the plum pudding model of the atom Robert Millikan - correct answer Calculated the charge-to-mass ratio of electr...

NBME CBSE ACTUAL TEST QUESTIONS AND ANSWERS(Quiz bank with all the correct answers)(usmle step 1)Medical examination Type II pneumocytes - ANSWER_surfactant (*lecithin*) Proliferate after injury Type I progenitors *Neonatal Respiratory Distress Syndrome* Type II pneumocytes - ANSWER_surfactant (*lecithin*) Proliferate after injury Type I progenitors *Neonatal Respiratory Distress Syndrome* Polio live v killed vaccine - ANSWER_Killed = Salk = IgG Live = Sabin = IgG + IgA - can be ...

AQA AS Physical Chemistry 2024 Exam Questions And Answers Who described atoms as solid spheres that make up different elements and when? - ANSWER- John Dalton in the 19th century Who suggested that atoms of a particular element had the same mass and atoms of different elements had different masses and when? - ANSWER- John Dalton in 1803 Who discovered the electron and when? - ANSWER- JJ Thomson, 1897 discovered electrons proving atoms weren't indivisible or solid. New model named pl...