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Biology, Undergraduate, Poster, Queen Mary, University of London

  1. Read the task in Box 1.
  2. Download each of the pdfs and read them. Keep these open so you can refer to them as you watch the video.
  3. Watch the video.

Step 1

The Task

Biology, Undergraduate, Poster, Queen Mary, University of London

Posters

The poster exercise was set towards the end of a semester in which 1st year students had a series of group tutorials on ‘structure and function’.  In groups of 8, they had to design a poster summarising their ideas and discussions on the topic using a group of organisms or a single organelle.

We expected the posters to be well designed using adequate colour combinations, and a font size appropriate to the size of the poster. The poster should not be wordy and there should be a good balance between its different elements. Once submitted posters were put on display for a number of days.  The students were asked to stand by their poster for 1 hour on a specific date in order to explain it and answer questions on the topic.

Students are asked to produce posters at all levels of study, including PhD. Doing a poster in the 1st year enables them to develop confidence as well as strengthening the study group.

Step 2

Texts

Mitochondrion

The mitochondrion is a double membrane organelle found in eukaryotic cells, responsible for ATP production. Its size range between 1µm – a few µm, may be individual or branched, have a tubular network and may change shape.

The structure and function of the Mitochondrion

Mitochondrial Matrix

  • Contains proteins and ions  to assist organelle functions.
  • Large volume.

Inter membrane space

  • Narrow space contains H⁺

    which contributes to

    the electrochemical

    gradient to assist

    the flow of

    electrons

    to produce

    ATP.

Ribosomes (smaller 70s)

  • Production of proteins.

Download PDF

Marsupials

Structure and Function

  • Structurally, marsupials are very similar to placental mammals.
  •  Some of both marsupials and placental mammals have the ability of embryonic diapause.
  •  The main structural peculiarity of marsupials is that of their reproductive systems and cycles.
  •  Structure and function can be better illustrated using individual examples, due to the great diversity in the group.

Evolution

  • Early marsupials evolved in the Cretaceous Period, when Laurasia and Godwana were separating
  •  Oldest fossils found in China. Marsupials spread via North to South America, and via Antarctica to Australia.
  •  Modern marsupials mainly found in S. America and Australia - experienced parallel evolution.
  •  334 species, more than 200 in Australia. Theory is that they displaced placental mammals due to better metabolic adaptations to Australia’s ecosystem.

Ecology and Diversity

  • A wide range of diets are seen within marsupials, including carnivorous, herbivorous and omnivorous species.
  •  Seen in all major terrestrial habitats due to sharing same ecological niches with placental mammals.
  •  No true aquatic marsupials.
  •  Most marsupials inhabit Australia, but some found in Americas.
  •  Australian marsupials have the widest range of habitats due to a wider range of available environments.

Download PDF

Step 3

Step 4

Download the transcript for this video.

Creative Commons Licence