A | B |
process by which plants make food | photosynthesis |
plants use light energy to make | glucose |
plant for food: flower | cauliflower |
plant for food: leaf | spinach |
plant for food: seeds | wheat |
plant for food: fruit | apple |
plant for food: stem | celery |
plant for food: root | carrot |
plant for food: storagr organ | potato |
releases energy from glucose | respiration |
glucose storage substance in plants | starch |
glucose is converted to : starch to make | glues and packaging |
glucose is converted to: protein to make | some plastics |
glucose is converted to: fats to make | perfumes and lubricants |
glucose is converted to: cellulose to make | paper |
for healthy growth, plants must absorb | mineral salts |
when plants die they | decompose |
improve soil | fertilisers |
kill weeds | herbicides |
poisons become | more concentrated along a food chain |
animals that eat crops | pests |
pesticides used to kill only one type of animal | specific |
poisonous chemical in some insecticides | DDT |
poisonous | toxic |
organisms used to kill pests naturally | biological control agents |
favourite | optimum |