ATL in Biology
Mitotic index & cancer
In this activity students are first guided through the identification of cells in the different stages of mitosis. Following this, the next task is to count and record the number of cells undergoing mitosis...
ATL in Biology
Identifying stages of mitosis - model answers
The document below shows some suggestions for answers to the activity questions Identifying the stages of mitosis student sheet. on the page Mitotic index & cancer Of course there are other possible...
ATL in Biology
The origin of cells and cell division 1.5 + 1.6 Free
Planning sheet for the origin of cells and cell division Understanding(s) Endosymbiosis - Nature of Science Mitosis and the Cell Cycle Control of cell cycle & cancer Essential Question(s) ToK / NoS /...
ATL in Biology
Ecology test - mark scheme
1. If two populations separated by a physical barrier could potentially and successfully interbreed then they are classified as 2. Which of the following are maintained in an ecosystem by nutrient cycling?...
ATL in Biology
Nervous system formation
This activity gives an insight into the complexity of the differentiation and specialisation of cells during the growth of an embryo in this activity. A wonderful short video clip shows neurones in an...
ATL in Biology
Theoretical Genetics 2
Beginning with a review of the punnet square questions from last lesson, students are then introduced to some more complex genetics using the example of human blood groups. Teacher led Description of...
ATL in Biology
Evolution topic test (2021) - model answers
These are the model answers for the Evolution topic test. Please remember that these are 'model answers' which is a little different from a thorough mark scheme which would include all the possible correct...
ATL in Biology
Evolution Test SL (2021)
This test contains the following questions: Command terms to remember: Define (Obj.1) = Give a precise meaning of a biological concept or word.Outline (Obj.2) = Give a brief account or summary.Distinguish...
ATL in Biology
Being Multicellular Free
If you want to be bigger than an Amoeba you need either giant cells or lots of cells. As the SA:Vol ratio limits cell size the only option is to be an organism made from lots of cells. The human body...
ATL in Biology
Being multicellular - model answers
This page shows suggested model answers to the questions on the page.Being Multicellular Please remember that these are 'model answers' and many other wordings are possible. Teachers can control access...