A Level Biology Aqa Essay

 
  1. I'm struggling with the essay title 'cycles in Biology' (25 marks) and was wondering if anyone has an example of this?

    I know what I'm going to include in each of the paragraphs but I don't understand how to write it. I know it's all about breadth and not depth, which is where I'm struggling as I can't seem to stop writing in detail!

    If someone has done this essay title or another similar, do you mind posting it so I can get an idea of how to write it/how much to write?

    THANK YOUUU!

    Also, this is my first attempt at writing one.

  2. Hey, I have completed this essay and achieved 24/25 marks (I lost one mark due to grammar)

    My advice would be to structure a paragraph as a 5 mark question of the topic.

    My usual structure is;
    Introduction (basic GCSE, A-level knowledge)
    Ecological cycles
    Clavin Cycle
    Krebs Cycle
    Nitrogen Cycle
    Carbon/Phosphorous Cycle
    (You need 5 topics at least to get into the top mark band)
    + additional further reading for instance metamorphosis.

    In each paragraph I would use the structure;
    Name the cycle e.g. calvin cycle, explain where it occurs and why it occurs and then describe the processes involved and then link back to the essay title and why it is a cycle.

  3. Thank you this is very useful! My teacher said to write about 16 different topics. So I have 4 cycles for Biochemical, cellular, systems and ecosystems. I can write about each briefly but as a whole the essay ends up being about 4 or 5 pages, which I think is too much for this?
    (Original post by KingAuthor)
    Hey, I have completed this essay and achieved 24/25 marks (I lost one mark due to grammar)

    My advice would be to structure a paragraph as a 5 mark question of the topic.

    My usual structure is;
    Introduction (basic GCSE, A-level knowledge)
    Ecological cycles
    Clavin Cycle
    Krebs Cycle
    Nitrogen Cycle
    Carbon/Phosphorous Cycle
    (You need 5 topics at least to get into the top mark band)
    + additional further reading for instance metamorphosis.

    In each paragraph I would use the structure;
    Name the cycle e.g. calvin cycle, explain where it occurs and why it occurs and then describe the processes involved and then link back to the essay title and why it is a cycle.

 

Essay titles

1.

The process of diffusion and its importance inliving organisms.2.

The different ways in which organisms useATP (June 2002) OR ATP and its roles in livingorganisms.3.

The movement of substances within livingorganisms (Jan 2003) OR Transportmechanisms in living organisms.4.

Mutation and its consequences.5.

The properties of enzymes and theirimportance in living organisms OR The role of enzymes in living organisms.6.

The ways in which a mammal maintainsconstant conditions inside its body.7.

Negative feedback in living organisms (June2005)8.

Chemical coordination in organisms.9.

The production and elimination of metabolicwaste products in living organisms.10.

The biological importance of water (Jan 2003)OR The role of water in the lives of organisms.11.

The importance of proteins in livingorganisms.12.

How the structure of proteins is related totheir functions (Jan 2004).13.

The importance of lipids in living organisms.14.

The importance of carbohydrates in livingorganisms OR The structure and functions of carbohydrates (June 2003).15.

How the structure of cells is related to theirfunction (June 2002).16.

Natural selection and the effects of environmental change.17.

Gas exchange in animals and flowering plants.18.

The importance of molecular shape in livingorganisms.19.

The factors affecting the growth and size of populations.20.

Cycles in Biology (June 2003).21.

The causes of variation and its biologicalimportance (Jan 2004).22.

The process of osmosis and its importance toliving organisms (June 2004).23.

Energy transfers which take place inside livingorganisms (June 2004).24.

How microscopes have contributed to ourunderstanding of living organisms (Jan 2005).25.

Enzymes and their importance in plants andanimals (Jan 2005).26.

Mean temperatures are rising in many partsof the world. The rising temperatures mayresult in physiological and ecological effectson living organisms. Describe and explainthese effects. (June 2005)27.

The transfer of substances containing carbonbetween organisms and between organismsand the environment (June 2006).28.

Cells are easy to distinguish by their shape.How are the shapes of cells related to theirfunction? (June 2006)29.

Movements inside cells. (June 2007)30.

Transfers through ecosystems. (June 2007)31.

The part played by the movement of substances across cell membranes in thefunctioning of different organs and organssystems (June 2008).32.

The part played by enzymes in the functioningof different cells, tissues and organs (June2008)33.

Ions and Organisms (June 2009)34.

DNA and the transfer of information (June2009)35.

Carbon dioxide may affect organisms directlyor indirectly. Describe and explain theseeffects. (June 2010)36.

The causes of disease in humans (June 2010).37.

The role of carbon containing compounds inliving organisms.38.

The role of nitrogen containing compounds inliving organisms.39.

The roles of membranes in living organisms.40.

The role of DNA in living organisms.41.

Applications and implications of genetechnology.42.

Genetic variation and speciation.43.

Control of the internal environment in livingorganisms.44.

The movement of molecules and ions throughmembranes.45.

Roles of pigments in living organisms.46.

Light and life.47.

Support and movement in living organisms.48.

The chemical and biological control of insectpests.

Categories: 1

0 Replies to “A Level Biology Aqa Essay”

Leave a comment

L'indirizzo email non verrà pubblicato. I campi obbligatori sono contrassegnati *