1. the carbohydrate produced is glucose, which is then stored as starch (these are both carbohydrates\n\n2. yes the enzyme amylase breaks down the starch into glucose\n\n3. energy from respiration is used in movement\n\n4. animals produce carbon dioxide as a by-product in respiration, which is then absorbed by plants to use in photosynthesis\n\nI didnt use any website for this information, it was all from memory, however wikipedia is always and excellent source for any problems.