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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
What is Photosynthesis?When green plants convert light energy into chemical energy. The light energy is used to convery carbon dioxide and water into oxygen and glucose.
Equation of PhotosynthesisCarbon dioxide + water -^- oxygen + glucose
PholemSpeciliased cells that transports glucose from the leaves to the rest of the plant, including the stems and roots
XylemSpecialised tissue that transports water from the roots to the rest of the plant.
Guard cellsThese cells control the size of the opening called the stomata
StomataGases such as Oxygen, Hydrogen and Cabron Dioxide diffuse through these openings. They are used for gas exchange, thoe Carbon dioxide comes in and the oxygen comes out.
PollinationThe transfer of pollen from the anther of one plant to the stigma of another using a pollinator
FertilizationThe fusion of a male and female gamete (sex cells)
How petals attract pollinatorsPetals are usually colourful to attract pollinators such as insects or birds. Insects are more attracted to the perfume let out by the plant
Stages of Pollination - Part 1Pollinators are attracted to flower by either colour or scent
Stages of Pollination - Part 2Pollinators reach deep into the flower to get the nectar for themselves, which is food for them. As the enter the flower, pollen from the anther gets rubbed onto them.
Stages of Pollination - Part 3Pollinators move to different flower to get more nectar. As they enter next flower, the pollen from the flower before get rubbed onto the stigma of the new flower.
Stages of Fertilization - Part 1Pollen grains get stuck on stigma after pollination A pollen tube starts to grow donw towards the ovary.
Stages of Fertilization - Part 2Inside the ovule the pollen fuses with the ovum After fertilization seeds are formed which will be dispersed in many different ways.