QUESTIONS YOU SHOULD BE ABLE TO ANSWER ON THE TOPIC Transfer of Energy And Photosynthesis
1)Animals are not able to make their own food. Where do they get their food? 2)What are they known as in food chains and food webs? 3)Green plants are able to do something that animals cannot do. What is it? 4)Once green plants obtain the light energy from the sun and convert it to chemical energy, how is this energy transferred to animals? 5)What are green plants known as in food chains and food webs? ENERGY TRANSFER
6)What shows the flow of food from one organism to another? 7)What else does the above show and why? 8)What are food webs? 9)What are food pyramids, pyramid of numbers and pyramid of biomass? 10)Does the total energy obtained by the plant from the sun at the start of the food chain get completed transferred to the last link of the food chain? Why? 11)How can the use of pesticides on plants result in the poison eventually reaching the consumers at the top of the chain? 12)How can intensive killing of a link in a food chain affect the other links?
1)Plants are very important. Why? 2)What is the word equation for photosynthesis? 3)What is the chemical equation for photosynthesis? 4)How are leaves well adapted for photosynthesis? 5)What happens to the food manufactured by the plant? PHOTOSYNTHESIS
6)Why is the iodine test important? 7)What can we do to find out if a plant has undergone photosynthesis? 8)Why do we need to kill a leaf before we carry out tests on it? 9)What will soaking a leaf in alcohol do to it? 10)If the leaf turns blue black after the iodine test is administered, what does that imply? 11)What could have happened if the leaf did not turn blue black after the iodine test is administered?
12)If a leaf is red in colour, does that mean it cannot photosynthesize? Why? 13)What is a variegated leaf and what happens to it if you adminster the iodine test on it? 14)What factors can affect photosynthesis? (6 factors)