The single unifying principle for the science sections of the new MCAT is a levels of organization approach to living systems that begins with the chemistry underlying the behavior of macromolecules and extends through the cell all the way to organ systems and physiological homeostasis. Biological tissues represent a cellular organizational level intermediate between cells and the organ systems of physiology. As a subject matter for MCAT review the tissue level doesn't have as large a conceptual vocabulary as cell biology or physiology, but it is very important. At least a basic understanding of the structure of tissues lends a unifying coherence to both cell biology and physiology.
Additionally, there is an important body of lab techniques associated with the study of tissues, namely, the techniques of histology. Histology is the art of preparing and visualizing tissue samples for microscopy, ie. the techniques of fixation, embedding, sectioning, clearing, staining and mounting. Histology represents a core laboratory practice, and you need the basics for the exam.
Animal Development and Embryology Images
Conceptual Vocabulary Self-Test
Basic Terms Crossword Puzzle
Basic Puzzle Solution
Conceptual Vocabulary for Tissues and Histology