International Baccalaureate: Biology

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556 International Baccalaureate Biology essays

  • Marked by Teachers essays 11
  • Peer Reviewed essays 1
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  1. Marked by a teacher

    Neurology and Behaviour. Focus question: Is there an increase in the perception and rating of disgust in females rather than males?

    5 star(s)

    *****
    An excellent investigation in to the differing rates of disgust with males and females.
    The introduction gave some excellent scientific information into the evolutionary and environmental factors that can…

    • Essay length: 4552 words
    • Submitted: 27/05/2012
    • Marked by teacher: (?) Jon Borrell 22/05/2013
  2. Marked by a teacher

    Experiment to investigate the effect of different antibiotics on the bacteria Bacillus subtilis:

    4 star(s)

    ****

    A very good, interesting scientific study.

    Although not complete the foundation for an excellent investigation is present.

    The method needs to be…

    • Essay length: 748 words
    • Submitted: 06/06/2011
    • Marked by teacher: (?) Jon Borrell 22/05/2013
  3. Marked by a teacher

    Osmosis Internal Assessment (Biology)

    4 star(s)

    ****
    An excellent investigation into the effect of osmosis on the potato chips.
    The introduction gave a good scientific foundation for the investigation and was well laid out with…

    • Essay length: 2612 words
    • Submitted: 15/05/2011
    • Marked by teacher: (?) Jon Borrell 22/05/2013
  4. Marked by a teacher

    Biology: Lab report Germination

    4 star(s)

    A sound effort into the variables affecting seed germination. In an investigation it is normal to choose one independent variable and focus on this. However, both experiments were examined separately…

    • Essay length: 1944 words
    • Submitted: 26/01/2011
    • Marked by teacher: (?) Jon Borrell 22/05/2013
  5. Marked by a teacher

    The effect of temperature on amylase activity

    4 star(s)

    ****
    A good investigation into the effect of temperature on the enzyme amylase.

    The introduction gave good scientific information and supported the hypothesis well.

    The method…

    • Essay length: 1232 words
    • Submitted: 10/02/2010
    • Marked by teacher: (?) Jon Borrell 22/05/2013
  6. Marked by a teacher

    The Effect of Temperature on Enzymatic Activity. Aim To investigate enzyme activity of yeast on glucose at different temperatures

    3 star(s)

    ***
    A sound report on the effect of various temperatures on the action of enzymes.

    The hypothesis was sound but the introduction would have benefited from some more…

    • Essay length: 862 words
    • Submitted: 17/03/2012
    • Marked by teacher: (?) Jon Borrell 22/05/2013
  7. Marked by a teacher

    Effect of substrate concentration on catalase activity (Biology IA)

    3 star(s)

    The introduction did not use / introduce any of the scientific theory that is needed to be understood in order to carry out this investigation.
    Catalase breaks down hydrogen…

    • Essay length: 1206 words
    • Submitted: 15/05/2011
    • Marked by teacher: (?) Jon Borrell 22/05/2013
  8. Marked by a teacher

    The Roles of ATP

    3 star(s)

    The basic building blocks of a nice essay are here, but this could be much better.
    The student spends a lot of time discussing ways in which ATP is…

    • Essay length: 1166 words
    • Submitted: 01/09/2010
    • Marked by teacher: (?) Rebecca Lewis 24/09/2012
  9. Marked by a teacher

    IB BIOLOGY INTERNAL POTATO OSMOSIS

    3 star(s)

    ***
    A sound investigation in to the effect of varying solute concentrations on the mass change of potato chips due to osmosis.

    The introduction was a bit brief…

    • Essay length: 1975 words
    • Submitted: 05/06/2010
    • Marked by teacher: (?) Jon Borrell 22/05/2013
  10. Marked by a teacher

    Investigating the relationship between cell size and rate of diffusion

    **
    The investigation does not really address the central question of the effect of surface area to volume ratio in enough detail.

    Too much focus is placed on…

    • Essay length: 751 words
    • Submitted: 21/11/2010
    • Marked by teacher: (?) Jon Borrell 22/05/2013
"

IB Biology is the study of living organisms. The four basic concepts which run through the course are: evolution, equilibrium within systems, universality versus diversity, and structure and function. These concepts give the student a strong foundation upon which other detailed knowledge can be built. You will also be completing a significant amount of practical work and an experimental approach is strongly emphasised.

Assessment is both externally and internally organised. The external examinations are a mixture of multiple-choice, short answer and extended answer tests.The extended answer examinations require you express yourself in a concise and scientific manner and some great examples of these IB Biology essays can be found on Marked by Teachers. Science can bring enormous benefits to societies and you will be encouraged to become a responsible and ethically minded scientist.

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