My name is Harry. I am a 3rd year Biology student at the University of York. I have a real passion for anything science and so I hope to share my enthusiasm with you during my tutorials. I have previous experience of tutoring outside of MyTutorWeb. I tutored a family friend in maths throughout her GCSEs and have also tutored class mates in A-level biology. I therefore feel very confident in my ability to explain concepts clearly and to help students understand them.
I am a patient and friendly individual and am happy to help out students of any ability. This may be for any specific questions or areas that you are struggling with, or for more general help across an entire syllabus.
What subjects do I tutor?
I studied Biology (A*), Chemistry (A) and Maths (A) at A-level, and have also completed 2 years of my Biology degree (First-class honours). I am therefore capable of teaching the following:
- Biology at GCSE and A-level standard
- Chemistry at GCSE standard
- Maths at GCSE standard
What do my tutorials cover?
My tutorials will be guided by you. Anything you are struggling with I am happy to cover. I aim to get my tutees into a position where they are confident enough to explain a concept back to me and can also use this knowledge effectively in an exam scenario. My teaching will be interactive, with methods such as verbal explanations, diagrams and questions. I will also direct students to particularly good resources which helped me when I was in their position.
Please feel free to send me a 'WebMail' or book a 'Meet the Tutor Session'. Tell me your subject and exam board, along with any particular problems you may have and we can take things from there!
I look forward to meeting you!
|Biology||A Level||£20 /hr|
Once a person has eaten a meal, their digestive system will break the nutrients down into smaller components that can travel in the blood to any parts of the body that need them. Any carbohydrates in this food will be broken down into sugars (e.g. glucose). These sugars will rapidly enter the blood.
At this point, it is critical for the body to use the glucose ASAP to avoid hyperglycaemia (high blood glucose) and maintain a constant blood glucose level. The glucose in the blood is therefore stored in liver and muscle cells in the form of a larger molecule called glycogen.
The body is able to detect blood glucose levels via an organ called the pancreas. More specifically, it is detected by areas within the pancreas called islets of Langerhans. In this region there are 2 types of cells. Beta-cells and alpha-cells.
Beta-cells will detect high blood glucose (e.g. after a meal) and secrete insulin. Insulin is a hormone that will help the liver and muscle cell uptake more glucose and convert it to glycogen, thus lowering the overall blood glucose levels.
Alpha-cells will detect low blood glucose (e.g. after exercise) and secrete glucagon. Glucagon is also a hormone, but it has the role of breaking down glycogen and releasing glucose from the liver and muscle cells. This will increase the blood glucose.
To provide an overview, the components within this system communicate with each other via hormones in order to provide a relatively constant blood glucose level. This maintanence of the internal environment is an example of homeostasis.see more