Hi, would you please include the answers to Activity 1 - Explanations of sex-linked inheritance worksheet? Thanks.
Sex Linked Genes (2025)Hatice Good morning, thanks for the comment. Question 5 is quite simple, the IB exam has questions for all ability levels but they still need precise answers.
C1.2 Cell respiration - model answersI have a problem explaining the 5th question to my students. They think that for the question, the answer shouldn't be that simple. Why is it just like repeating basic knowledge? When it comes to explaining the 5th question how should i do it?
C1.2 Cell respiration - model answersQ8 still needs fixing. As well as the terminology for NAD and reduced NAD, the question is misleading because glycolysis always yields the same net ATP regardless of oxygen availability. Aerobic vs anaerobic conditions affect downstream ATP...
C1.2 Cell Respiration - Topic testThank you.
Double membranes HL (2025)Dear Mike,Thanks for your comment, I'd posted the model answers to this activity quite a while ago, but I had forgotten to change this note in the teachers box. I've added the link to the teachers note on the page here now. You can also...
Double membranes HL (2025)Could you please post the model answers for the IB Style Questions Herbivory? Thanks
Animal adaptations (2025)Haneen Thanks for this, I agree, it should be Calcium release and subsequent uptake
B3.3 Muscle and motility - model answersQuestion 7 says that depolarisation causes the entry of calcium, actually when depolarisation of the muscle fibre causes calcium to be released from the sarcoplasmic reticulum into the sarcoplasm.
B3.3 Muscle and motility - model answers
Kamran
Hi, please provide the model answers for Activity 3. Thank you.
Di-Hybrid Crosses.