Oxygen carried in a hemoglobin molecule is bound to a/an

Oxygen carried in a hemoglobin molecule is bound to an iron atom. The red blood cells contain a pigment called hemoglobin, each molecule of which binds four oxygen molecules.This protein carries oxygen to the cells and carbon dioxide to the lungs. It is the iron atom that binds oxygen as the blood travels between the lungs and the tissues.

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Given 3 non-collinear points, which of the following statements are not true? There is only 1 plane that contains all 3 points. They will be contained in the same line. Any of the 3 points can be the intersection of 2 planes. Any 2 of the points defines a line entirely within the plane.

Non-collinear points are points which do not form a straight line. Three non-collinear points create a plane therefore they are always coplanar. Therefore the statements which are not true are: They will be contained in the same line.  Any of the 3 points can be the intersection of 2 planes.

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14. Within a single use of the scientific method, which of the following steps can only be performed after data is collected? A. Controls and variables are chosen. B. The initial experiment is designed. C. The initial hypothesis is formed. D. Conclusions are drawn.

The answer is D. Conclusions are drawn. This is the only choice that can be done after data gathering, formulation, and analysis. Other choices are in correct A. Controls and variables are chosen.  (Identified before an experiment)B. The initial experiment is designed. (Has been planned before an experiment is done.)C. The initial …

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E. solid copper sulfide and silver nitrate react to form copper (ii) nitrate and solid silver sulfide. write a balanced chemical equation that describes the reaction. identify the oxidation number of each element in the reaction. (you do not need to include the total contribution of charge.) is this reaction a redox reaction or a non-redox reaction? explain your answer.

Answer: The given reaction is not a redox reaction. Explanation: Redox reaction is defined as chemical reaction in oxidation and reduction reactions occurs simultaneously. Oxidation reaction is defined as the reaction in which an atom looses its electrons. Here, oxidation state of the atom increases. Reduction reaction is defined as …

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As the names were announced, Omar’s posture straightened. He nodded and stifled a smile as his legs bounced a subtle beat beneath his desk. He closed his eyes briefly, silently willing himself to save his reaction for later. The underlined words reveal Omar’s pride. frustration. discomfort. curiosity.

As the names were announced, Omar’s posture straightened. He nodded and stifled a smile as his legs bounced a subtle beat beneath his desk. He closed his eyes briefly, silently willing himself to save his reaction for later. The underlined words reveal Omar’s pride. frustration. discomfort. curiosity.

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Which ancient Greeks most directly influenced modern engineering and architecture? Select all that apply. A. Hippocrates B. Zeno C. Euclid D. Copernicus E. Pythagoras F. Euripides

I believe the answer is: Euclid and Pythagoras. Euclid alexandria was a famous mathematicians who is regarded as the father of Geometry and phytagoras was known for developing the phytagoras formula to measures sides of triangles. Their accomplishments were really crucial because it is still used to calculate correct measurement …

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Which is an example of Southern Gothic literature? a.”Let Sleeping Dogs Lie” b.”A Good Man is Hard to Find” c.”The Problem that Has No Name” d.”The Man Who Was Almost a Man”

Answer: The correct answer is option b. “A Good Man is Hard to Find” Explanation: The short story “A Good Man is Hard to Find”  by Flannery O’Connor  deals with Bailey attempt to take his family from Georgia to Florida, which ends in a disaster when they encounter a escaped …

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Why are many hoaxes released over the Internet? (Apex) A. The Internet makes hoaxes available to everyone. B. Respected people use the Internet. C. Hoaxes spread quickly and easily on the Internet. D. Internet hoaxes are simple to create and update.

Why are many hoaxes released over the Internet? (Apex) A. The Internet makes hoaxes available to everyone. B. Respected people use the Internet. C. Hoaxes spread quickly and easily on the Internet. D. Internet hoaxes are simple to create and update.

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The science experiment was quite disturbing and I don’t know if I can look at a worm the same way again. Read the sentence above. The connotative meaning of the underlined word is: a. Positive c. Neutral b. Negative d. None of the above

The science experiment was quite disturbing and I don’t know if I can look at a worm the same way again. Read the sentence above. The connotative meaning of the underlined word is: a. Positive c. Neutral b. Negative d. None of the above

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