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The article discusses the importance of trace elements for their survival. It notes that the European Food Safety Authority (EFSA) has for iron a whole range of effects as assured. It adds that iron contributes to a normal formation of the blood pigment hemoglobin as well as red blood cells. It notes that the European Union recommendation for daily intake of iron is 14 milligrams.

Examines the association between water and the hemoglobin molecules in the red blood cell. Evidence for the apparent peculiarity of red cell water which arose from classical studies of how cells shrink and swell; Reason behind the capability of the cell to carry its large concentration of hemoglobin through the body without rupturing because of osmotic pressure; Measurement of the osmotic properties of a hemoglobin solution placed on one side of a cellophane membrane.

The article provides information on the universal molecule of living organisms. A study was conducted to investigate the matter and it stressed that chemical analysis shows that the hemoglobin of blood, the chlorophyll of plants, and various enzymes intricate in metabolic process are all built in one basic pattern. The study revealed that tetrapyrrole ring, a chemical structure made up of four smaller rings, takes place in a group of green pigments found in photosynthetic organisms will take part in respiration.

Several questions and answers are provided on science-related topics, including beavers' felling of trees for food and construction purposes, dogs and cats' carbon footprint and the color of fish blood.

The article investigates the mystery of the bloodless fish discovered in Bouvet Island. The existence of these remarkable icefish provokes many questions. One of the reason of the phenomena is the cold temperature of its environment. The loss of hemoglobin has accompanied a whole suite of changes in the fish that allows it to thrive at below-freezing temperatures.

The article discusses the significance of high levels of iron in human body and presents suggestions on maintaining it. It is stated that in the formation of red blood cells and hemoglobin, a significant role is played by iron. According to dietitian Geraldine Georgeou, one of the reasons that women struggle in the iron stakes is that many facts about iron is not well understood. It is suggested to avoid toffee, tea and cola drinks will meals to improve iron absorption.

Answers a question on the reasons for bruises to turn yellow, purple and green. Cause of bruises; Impact of oxygen-carrying hemoglobin on the blood.; Decomposition of hemoglobin into the pigment called biliverdin.

The article clarifies the myth related to the colour of blood in veins.

Provides three answers to a reader's question about why some sea creatures have blue, copper-based blood, rather than red, iron-based blood, and the advantage, if any, this gives to them.

Reports on news and developments concerning technological innovations. Food biochemist at Memorial University, Fereidoon Shahidi's use of the pigment derived from red blood cells, as alternative to nitrite curing; Ability of the alkali-tin-silicate glass to hold dissolved plutonium equal to 7 percent of its weight; Electric Fuel Corp.'s development of zinc-air batteries that can power electric vehicles.

Reports that the biotechnology companies have tried to develop an artificial blood that could be used for emergency transfusions. Information that most efforts have stumbled over trying to reproduce hemoglobin, the protein that carries oxygen in red blood cells and is the essential element for artificial blood; Report that Somatogen Inc.'s researchers have modified human hemoglobin so that it gives up its oxygen more readily and doesn't break down in the body; Statement that Somatogen expects to begin testing on humans by the end of the summer, pending government approval.

The article focuses on research published in the May 16, 2018 issue of "Science Advances" on the evolution of green blood color in Prasinohaema lizards in New Guinea. It states that the four species of skinks are not close relatives but instead evolved four separate times. It mentions the green color is the result of high buildups of the pigment biliverdin which would kill other animals and is formed when hemoglobin molecules break down in dead red blood cells.

The article focuses on carbon monoxide and its dangers. Carbon monoxide is an invisible and odorless gas, which can be detected with sophisticated instruments. Carbon monoxide is dangerous as it displaces oxygen in the blood's hemoglobin and forms carboxyhemoglobin. Oxygen is replaced by it and the body's organs are starved for oxygen and nutrients.

The article presents questions and answers related to health, including the reason for side cramps while running, why blood is red and whether fiber in food is important.

The article presents information that for some Tibetan women who live at high altitudes can carry more oxygen in their blood than others. New research shows that children of these women have a survival advantage— a dramatic example of natural selection at work in humans. People who live at high altitudes adjust to the thin air by increasing the percentage of red blood cells, the oxygen-carrying cells, in their blood. Previous studies have suggested that some Tibetans also inherit the ability to boost the amount of oxygen carried by their hemoglobin— the molecule in red blood cells that snags oxygen. By examining the family tree for each village and testing the women's blood to see how much oxygen their hemoglobin could carry, the researchers were able to determine how hemoglobin's oxygen capacity is inherited.

Explains why the color of some animals' blood are not red. Blue blood of crabs; Green blood of earthworms and leeches; Yellowish or clear blood of invertebrates like starfish; Mechanics of how blood-sucking animals obtain the blood of other animals.

Answers medical questions from readers. Blood color; Chickenpox transmission.

The article presents questions and answers related to health, including the reason why blood is red and why people drool at night.

The article provides an answer to a question about the color change of blood flow in a menstrual cycle.

Presents a case report on azathioprine-induced pure red cell aplasia. Association of pure red cell aplasia with azathioprine; Analysis of haemoglobin level; Findings and conclusion of the case report.

Discusses the reasons why blood changes color when it comes in contact with air. Transformation of dark maroon color to bright red when flowing through lungs; Oxygen atoms that attach to red blood cells; Delivery of oxygen throughout the body; Travel of deoxygenated blood through veins.