Define the terms negative feedback, positive feedback and homeostasis
Explain the principles of homeostasis in terms of receptors, effectors and negative feedback
Describe the physiological and behavioural responses that maintain a constant core body temperature in ectotherms.
This resource was tailored to be used to teach Microscopy and Cell organisation following OCR specification.
Keywords: Resolution, magnification, microscopy, cells, organelles, prokaryotic and eukaryotic cells.
This resource aims to explain the meaning of the terms open circulatory system and closed circulatory system, with reference to the circulatory systems of insects and fish
Key words: open circulatory, closed circulatory system
This practical activity aims to develop students' understanding of primary, secondary and tertiary structure of proteins through computer protein modelling. Computer modelling can create 3D interactive images to support the student to visualize different interactions between amino acids within a molecule.
This resource can be used to achieve competency in computer modelling towards the new practical skills endorsement for A level Biology (2015 specifications).
The learning outcomes of this activity are: 1) Recall the levels of protein structure including primary, secondary, tertiary and quaternary structure with emphasis on RuBisCO protein; 2) Understand the 3D structural difference between fibrous and globular proteins and 3) Achieve practical competency in using computer molecular modelling.