Alastair R. GCSE Biology tutor, GCSE Chemistry tutor

Alastair R.

Currently unavailable: for regular students

Degree: Medicine (Bachelors) - Oxford, Magdalen College University

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About me

Hi, I'm Alastair and I'm a 1st year medical student at Oxford University.  I did GCSEs and science A levels before beginning a university course which is essentially based around biology and chemistry, subjects which I am happy to tutor to GCSE.  I hope to foster an enthusiasm for science and inspire the next generation of budding scientists! (hope that doesn't sound too cheesy...) I believe that tutorial sessions should be student directed - i.e. you ask me what you want to know, and that way any gaps in understanding can be precisely filled in.  Alternatively, if you want to go through everything, that's fine too - it's really up to you what you want to talk about.  I hope that I can help students through the GCSE process to fulfil future aspirations, whatever they might be.  I really enjoy a life learning about science, and I hope that I might pass on that prospect.

Subjects offered

SubjectLevelMy prices
Biology GCSE £20 /hr
Chemistry GCSE £20 /hr

Qualifications

QualificationLevelGrade
MathsA-Levela*
BiologyA-Levela*
ChemistryA-Levela*
PhysicsA-Levela*
Disclosure and Barring Service

CRB/DBS Standard

No

CRB/DBS Enhanced

No

Currently unavailable: for regular students

Questions Alastair has answered

How do organisms obtain energy?

Organisms, such as humans, take in "substrates" such as glucose, in our food.  During a process called respiration, we react these substrates with oxygen to give carbon dioxide and water; this takes place in the mitochondria of our cells.  Along the way, energy is given out which is used to dr...

Organisms, such as humans, take in "substrates" such as glucose, in our food.  During a process called respiration, we react these substrates with oxygen to give carbon dioxide and water; this takes place in the mitochondria of our cells.  Along the way, energy is given out which is used to drive processes which take place within cells (secretion, intracellular transport, muscle contraction etc.)  Originally, energy comes from the Sun.  When producers (a.k.a. plants and certain types of bacteria) photosynthesise, their chlorophyll captures the light energy and they transform this energy into the chemical potential energy of organic molecules such as glucose.  The consumption of plants by animals - consumers in the food chain - allows the energy of glucose to be used for the various functions (secretion, intracellular transport and so on).  This usage of glucose and other substrates occurs through a process called respiration.  The cellular energy is actually stored within a molecule called adenosine triphosphate (ATP).  

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1 year ago

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