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Photosynthesis
O: We will learn that radiant energy from the sun is transformed into chemical
energy through photosynthesis.
All living things require energy to grow and reproduce.
Most living things on earth break down glucose to get their energy,
autotroph – (plants) use a process called photosynthesis to make glucose.
heterotroph – (non-plants) eat and then digest food to produce glucose.
photosynthesis – the process by which an organism with chlorophyll uses
radiant energy, carbon dioxide and water to make glucose and oxygen.
stomata – openings in the underside of the leaf that act as doorways
for raw materials and waste to enter and exit the leaf.
Photosynthesis takes place inside a small
green organelle called a chloroplast.
mitochondria
The plant stores glucose in the roots, stems or leaves until needed.
The oxygen is given off through the stomata.
When the plant needs energy, the glucose is sent to mitochondria
inside the cell.
cellular respiration - Inside the mitochondria, the glucose is broken apart to
release energy.
Animal cells like ours also have mitochondria to break down glucose.
chlorophyll – green pigment found in plants that is necessary for
photosynthesis.
A: Photosynthesis is necessary for life on Earth because it is the process
that creates all of the energy needed for all life on the planet.