This A level Biology OCR booklet on the three types of muscles It includes: The structural and functional differences in : Involuntary/smooth muscle Cardiac muscle Voluntary/Skeletal muscle A full detailed summary table that helps with Revision

This Biotechnology booklet Introduces some key terms regarding Biotechnology and the many different uses of microorganisms in Biotechnology. The introduction of Primary and secondary metabolites and when they are produced in the microbial growth curve. There are some deep level thinking questions to challenge learners. The booklet then goes on to explain some key Biotechnological processes and the microbes involved covering : The production of food, pharmaceutical drugs, commercial enzymes and Bioremediation. The booklet then introduces industrial scale fermenters and the key factors that can affect microbial growth. The booklet contains picture of a standard fermenter and a power point resource that pupils can use to label and learn the key parts. The Booklet then briefly compares Batch and Continuous culture and the key differences between them. The last page contains the key terms of aseptic technique, asepsis and Contaminants and the results of what happens if contaminants enter in the fermenter and why asepsis is key to pure culture. Lastly the challenges faced when scaling up small scale fermenters to industrial scale.

This Booklet covering the main four structures and levels of proteins from the primary level with Amino acids structure and properties to the Quaternary level with Collagen and Heamoglobin

The booklet covers the difficult concept of how haemoglobin transports oxygen around the body and how the haemoglobin undergoes configurational change so that it bonds oxygen more easily after the first oxygen has joined. The booklet then introduces Oxygen dissociation curves why they are sigmoid shape and how they are made including what the partial pressures means in terms of tissues in the body. There are various amount of tasks in the booklet students are challenged to make a dissociation curve with some data and need to answer some key questions on what is happening at different parts of the graph in relation to partial pressure and haemoglobin shape. The booklet then compares haemoglobin with both myglobin the oxygen storage molecule found in muscles and foetal haemoglobin. Both have questions on what these molecules do and where they are situated on the oxygen dissociation curve graph in relation to adult haemoglobin. The booklet then introduces carbon dioxide transport in great detail and the three main methods it is transported in the blood. The booklet then finishes on the Bohr effect and how carbon dioxide affects the oxygen dissociation curve and what happens when different carbon dioxide concentrations affect haemogobin loading and unloading.

This resource covers the OCR syllabus on PLant transport- Translocation. Firstly it defines what translocation is and then further explains the key terms of source and sink regarding the translocation of sugars. The booklet then further explains the key cells the make up the Phloem tissue, their components and functions. It then goes on to explain the content of the sieve tubes and the reason why Sucrose is transported not glucose. The resource then explains how translocation occurs using the mass flow hypothesis. It shows the key mechanism how Sucrose is loaded into the phloem using a co-transporter. The booklet then shows with clearly labelled diagrams how sucrose is moved along the phloem. The finishing page focuses on the difficult 2021 Translocation question on how glucose produced in photosynthesis is translocated to parts of the plant where glucose is metabolised and stored.