1 sentence each

Question

1) what is the purpose of baking soda in water and plant leaves (photosynthesis)
2)why was dish detergent used with the baking soda and water with plant leaves
3)when you pulled back on the syringe, air bubbles appeared in the barrel of the syringe. what are the bubbles and why did the appear
4)what process occurred when the leaf disks were exposed to a light source? how do you know?

Answer 1

1. The purpose of baking soda in water and plant leaves is to provide a source of carbon dioxide, which is essential for photosynthesis to occur.
2. Dish detergent was used with the baking soda and water to break down the surface tension of the leaf disks, allowing more carbon dioxide to enter the leaves and facilitating photosynthesis.
3. The air bubbles that appeared in the syringe barrel were the result of dissolved gases being released from the leaf disks, indicating that the leaves were undergoing photosynthesis and producing oxygen as a byproduct.
4. The process that occurred when the leaf disks were exposed to a light source was photosynthesis, as evidenced by the floating of the disks after they had produced oxygen, which made them less dense than the surrounding water.