ATL in Biology
Sustainable fisheries - model answers
This page shows suggestions of model answers for the activity on the Fisheries and populations page. Of course there are alternative correct answers possible in places, this is not a mark scheme. Sustainable...
ATL in Biology
Fisheries management - model answers
This page shows suggestions of model answers for the activity on the Fisheries and populations page. Of course there are alternative correct answers possible in places, this is not a mark scheme. Fisheries...
ATL in Biology
Evaluation of Climate Change Model Answers.
The nature of the scientific method is that a hypothesis should be supported by a plausible explanation and data, from an experiment which is repeatable by other researchers, then peer reviewed. This...
ATL in Biology
Condensation & Hydrolysis.
A set of slides helps a teacher led description of how two glucose molecules form a dissacharide by condensation and the same for two amino acids and three fatty acids with glycerol, as in a triglyceride.Students...
ATL in Biology
Krebs IB style questions - model answers
1. Mitochondria are important organelles in the cells of eukaryotes. A: ..............Matrix of the mitochondrion........................................ B: ..............Cytoplasm of...
ATL in Biology
A miracle cure for ulcers
In this activity students learn about how stomach acid prevents the growth of all bacteria except one. Helicobacter pylori is a sneaky spiral pathogen which uses the enzyme urease to make ammonia and...
ATL in Biology
Gastric secretions - model answers
These are suggested model answers for the activity Questions on the gastric juice videosQuestions 6 - 9 are challenging and students may need some guidance with these questions. 1. Dr William Beaumont...
ATL in Biology
Lincoln Index activities
How do biologists make estimates of the number of giant pandas left in the wild? Because animals often move and hide this task is really difficult but the Lincoln index provides a solution. In this activity...
ATL in Biology
Lincoln index - model answers
Year Number of banded birds Number of banded birds caught the following year Total Catch of birds in the following year. Estimate of total USA duck population 1920 238 31 5 000 000 38.4 million 1921 382...
ATL in Biology
Genetics test HL
This test contains the following questions (with an emphasis on new element of the guide for first exams in 2016): Click the eye icon to display a Countdown time. Genetics test (HL) - click here to download...