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babymother [125]
3 years ago
11

Why is bicarbonate is mixed with water in the leaf disc experiment?

Biology
1 answer:
amm18123 years ago
5 0

Answer:

When sodium bicarbonate is added to the water, the bicarbonate ion acts as a carbon source for photosynthesis causing the leaf disks to sink. As photosynthesis proceeds, oxygen is released into the interior of the leaf, which changes its buoyancy causing the disk to rise.

hope this helps :)

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