Common Misconceptions in Blood Circulation


You will write a summary about a misconception. Find a misconception related to any of the topics that we cover in the class. The format of your summary will be 1 page long, double-spaced, using 12pt Times New Roman font, along with a reference page as the 2nd page. For the misconception, you can use .com addresses, advertisements, short video clips from movies as your references Common Misconceptions in Blood Circulation.

However, the misconception needs to be corrected by explaining the correct scientific concept. For the correct scientific concept, you need to use a professional, scientific journal with original research and data to examine. Show your own thoughtful examination of the data and concepts. In addition, .gov and .edu addresses are also accepted. You MUST CITE all your references in each sentence/paragraph, even if the information is written in your own paraphrasing Common Misconceptions in Blood Circulation.


Example of a misconception: They say eating eggs would increase your cholesterol, but there are so many studies that show that you can have a normal cholesterol even if you eat 10-20 eggs daily.

some of topic you have undertaken in class

Cell structure, enzyme and energy, Cell respiration and metabolism, neurons and synapses, autonomic nervous system, muscle physiology, Blood, heart and circulation, Cardiovascular physiology, Immunology, Respiratory physiology, Renal physiology, Digestion, Endocrinology

Blood Circulation Misconception in Biology

One of the common misconceptions in circulation is that when blood lacks oxygen it turns blue. The misconception is held mainly by students in the lower grades (Kumandaş, Armagan and Lane, 351). Usually, the misconception is influenced by the appearance of the veins underneath the skin. Some people believe that the blue color occurs because the veins carry de-oxygenated blood to the heart (Kumandaş, Armagan and Lane, 351). The misconception is also influenced by the fact that when some people are suffocating, their lips appear to have blue color (Kumandaş, Armagan and Lane, 351). The presence of blue color on the lips is believed to be caused by the lack of enough oxygen.

Notably, the previous studies have shown that the misconception does not disappear completely even after student reach university levels. Özgür (255) conducted an empirical study on elementary school students from 5th and 7th grades and university students in 1st an 4th years. The results showed that the misconception was prevalence among the elementary school students. However, the misconceptions were also present in the university students, although the proportion was relatively lower (Özgür, 255). Thus, the study demonstrates that the misconceptions are prevalent Common Misconceptions in Blood Circulation.

In reality, as Lee, Kang and Kim (238) explain, human blood is always red. Hemoglobin has a red color and that is why the blood is always red. However, as Lee, Kang and Kim (238) explain, the hemoglobin has four heme groups. The color of the blood can change slightly after the heme groups interact with other elements. If, for instance, the hemes interact with more carbon monoxide than oxygen, the blood gains a light red color. When there is a shortage of oxygen, it turns dark red (Lee, Kang and Kim, 238). The reason why the veins appear to have a blue color because of the closeness to the skin and due to the way low-frequency light is absorbed by the subcutaneous fat.

Works Cited

Kumandaş, Bahar, Armagan Ateskan and Jennie Lane. “Misconceptions in biology: a meta synthesis study of research, 2000–2014,” Journal of Biological Education, Vol. 53, No. 4, pp. 2019, pp. 350-364.

Lee, S., Kang, E. & Kim, H. “Exploring the Impact of Students’ Learning Approach on Collaborative Group Modeling of Blood Circulation.” J Sci Educ Technol Vol. 24, 2015, pp. 234–255 Özgür, Sami. “The Persistence of Misconceptions about the Human Blood Circulatory System among Students in Different Grade Levels.” International Journal of Environmental and Science Education. Vol. 8. No. 2, 2013, pp. 255-268 Common Misconceptions in Blood Circulation.

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