Read the summary and the most important questions on your biology | Gerard Smits

• 1 Classification

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• how can you preserve food?

  by heating, cooling, drying, salting, adding sugar.

• what do we call the largest groups of organisms

  kingdoms

• what are bacteria? how can you make them visible?

  bacteria are very small organisms consisting of single cells. you can see them only under a electronic microscope.

• what features are used for this classification?

  colour, how they move, where they live, the way cells are build (cell walls, nuclei, chloroplasts)

• 1.1 fungal kingdom

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• why are some fungi useful and other harmful?

  fungi who feeds on the remains of dead remains of organisms are useful. like bacteria they are important in the recycling of nutrients. harmful bacteria can make food decay. fungi who disease in plants, animals and human beings are harmfull.  fungal who make a infection is also harmful.

• where doe multicellular fungi consist of?

  multicellular fungi consist of long, thin threads or cells, the hyphae they reproduce by making spores. a spore is a single cell that (withoud fertilization) can grow into a new organism. many fungi have special organs in which the spores are made :the toadstools.

• 1.2 plant kingdom/ animal kingdom

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• phylum: algea name 3 features.

  no proper roots, stems, leaves or flowers. cells with nuclei, chlorophyll and cell wall. reproduction by cell division.

• what is a class?

  a class is a subgroup of a phylum with similar features.

• with 2 classes does the phylum: seed making plants has?

  conifers.

  flowering plants

• which two features are used for classifying into smaller groups?

  skeleton, symmetry