This research aimed to clarify whether and how bioethics is treated in textbooks of biology high school, as well as analyzing how to approach the theme in these books helps students to meet him, becoming able to understand and think critically about the subject and issues in the contemporary context. To do this, investigated books offered by the National Textbook for Secondary Schools (PNLEM) in the light of some assumptions of content analysis methodology. Beacon this search on two guiding questions, namely: (i) What is written on bioethics in biology textbooks? (ii) With what frequency and intensity of this theme is presented in these textbooks? In this perspective, for the first question, the propositions of the books that underlie the issue could be framed in two broad categories: holistic medical bioethics and bioethics. These categories of greater amplitude could be divided into subcategories on different topics and issues (cloning, stem cells, etc.) That are part of the theoretical field of bioethics, for which I sought to make some inferences about the manifest content and explicit selected books that express some kind of reflection on the ethics of the issues addressed, analyzing them in light of theoretical frameworks of bioethics. The analysis of the second question in sub-dispensed split because, in general, bioethics is scarce and too superficial in the way it has been presented in textbooks, failing to elicit reflection by the reader. The approach to bioethical issues in basic education is essential, since the impacts caused by techno-scientific development are becoming more pronounced in society and the environment. Thus, it is essential that the biology textbooks undergo an intense reformulation in order to be pedagogically to monitor changes complemented by acclaimed new guidelines and bases for the Brazilian educational system that, at least in theory, recommend actions for Education, especially school education, aimed at an efficient and effective ethical and citizen.
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