Multiple Choice
What is the primary source of energy in most ecosystems?
8. Thermochemistry
Nature of Energy
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How does energy initially enter an apple?
A
By converting water into energy
B
Through photosynthesis in the apple tree
C
Through chemical reactions in the soil
D
By absorbing heat from the sun
Verified step by step guidance1
Understand that energy enters an apple through the process of photosynthesis, which occurs in the leaves of the apple tree.
Photosynthesis is the process by which green plants, including apple trees, use sunlight to synthesize foods with the help of chlorophyll.
The general equation for photosynthesis can be represented as:
In this process, carbon dioxide () from the air and water () from the soil are converted into glucose () and oxygen () using the energy from sunlight.
The glucose produced is then used by the apple tree as a source of energy and as a building block for growing the apple fruit.
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