Biology: Year 9 Term 4: Metabolism 0.0 / 5 ? BiologyHomeostasisMetabolismGCSEAQA Created by: Charlotte HerondaleCreated on: 17-12-18 17:32 Define 'metabolism' (2) The chemical processes that occur in an organism to maintain life 1 of 15 Define 'metabolic rate' (2) The amount of energy used by an animal in a unit of time 2 of 15 Define 'BMR (basal metabolic rate)' (2) Energy used daily in rest 3 of 15 What influences metabolism? (5) Weight, Height, Fat tissue levels, Gender, Muscle mass 4 of 15 Anabolic reactions do what? (2) Build up molecules, use energy 5 of 15 Catabolic reactions do what? (2) Break down molecules, release energy 6 of 15 What type of reaction is respiration? (1) Redox 7 of 15 What is a metabolic pathway? (1) Chain of reactions in a cell 8 of 15 How are reactions controlled? (3) Increasing/decreasing enzymes' response to signals (controlled by protein) 9 of 15 What is glucose converted into and what is each used for? (6) Hydrogen for ATP creation, Carbon for protein building, Oxygen for respiration 10 of 15 What forms amino acids along with glucose? (1) Nitrates 11 of 15 What are excess proteins converted into and what happens to them? (1) Amino acids, excreted as cannot be stored 12 of 15 What are lipids? (2) Fatty acids insoluble in water 13 of 15 What are lipid molecules formed from? (2) Glycerol molecules attached to 3 fatty acids 14 of 15 What is urea? (2) Breakdown produce of protein, excreted in urine 15 of 15
Comments
No comments have yet been made