Biology WBI15/01 January 2023 | Edexcel International A Level Past Papers With Mark Scheme

Edexcel International AS/A Level Biology (WBI) Jan 2023

معلم موافق رایگان بودن است.

1. muscle contraction and joint structure—ligament and cartilage roles, actin-myosin interaction, reflex arc and synapse function, brain imaging via PET/MRI/fMRI
2. cancer biology—mutation types, mitosis in tumors, epigenetic gene regulation, oestrogen impact on breast cancer gene expression
3. exercise physiology—respiratory quotient changes, fat vs carbohydrate use, cardiac index and output, anaerobic respiration and lactate fate
4. homeostasis—negative feedback, insulin and glucagon regulation of blood glucose, hormone concentration interpretation
5. muscle fiber comparison—slow vs fast twitch roles, sarcomere structure, heart rate changes with respiration rate
6. dopamine response in rats—sucrose concentration effect, standard deviation use, statistical analysis of behavior, adrenaline and fight-or-flight response