Osmosis and diffusion are essential foundation concepts for first-year biology students as they are a key to understanding much of the biology curriculum. However, mastering these concepts can be challenging due to their interdisciplinary and abstract nature. Even at their simplest level, osmosis and diffusion require the learner to imagine processes they cannot see. In addition, many students begin university with flawed beliefs about these two concepts which will impede learning in related areas. The aim of this study was to explore misconceptions around osmosis and diffusion held by first-year cell biology students at an Australian regional university. The 18-item Osmosis and Diffusion Conceptual Assessment was completed by 767 students. From the results, four key misconceptions were identified: approximately half of the participants believed dissolved substances will eventually settle out of a solution; approximately one quarter thought that water will always reach equal levels; one quarter believed that all things expand and contract with temperature; and nearly one third of students believed molecules only move with the addition of external force. Greater attention to identifying and rectifying common misconceptions when teaching first-year students will improve their conceptual understanding of these concepts and benefit their learning in subsequent science subjects.

Students from three undergraduate programs at James Cook University, Queensland, Australia, studying combined first-year anatomy and physiology courses, showed different academic achievement in physiology. Physiotherapy students were more active and social when completing learning tasks and achieved significantly higher grades in physiology compared with students enrolled in Sport and Exercise Science and Occupational Therapy programs. To promote academic engagement and achievement by all three groups, discussion questions, case studies, and study guides were included. The aim of this study was to investigate the effectiveness of using these modified resources to promote active learning, enhance academic social interactions, and provide a supportive learning environment. The occupational therapy students showed increased academic achievement (from 57.9 to 66.5%) following implementation of the new resources, but there was no change in the already high-performing physiotherapy students (73.1%) and, more concerningly, the sport and exercise science students (from 54.6 to 56.7%). Fewer sport and exercise science students had prior learning in chemistry (30.4% of participants) and also spent little time outside class studying (8 h/wk), compared with the physiotherapy cohort (70.0% chemistry; 13 h/wk studying). Findings of this research demonstrate that creating a supportive and active learning environment are important factors in promoting the learning of physiology for some cohorts. Background knowledge, academic self-regulatory skills, and the experience of teaching staff are factors that must be considered when endeavoring to increase student academic achievement. Future studies should examine the effect of students’ academic self-regulation and the use of remedial chemistry classes when learning physiology.

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An immersive 320° 3D experience of osmosis was perceived by cell biology students to be fun, useful, and educational. Performance of all students improved on a multiple-choice exam question, and those students with moderate to high base-level knowledge also performed better on short-answer questions.

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