Which of the following occurs when the plant needs CO2 for photosynthesis? Guard cells open by releasing solutes from their cytoplasm out of the cell, causing H20 to diffuse out of the cells by osmosis Guard cells close by releasing solutes from their cytoplasm out of the cell, causing H20 to diffuse out of the cells by osmosis Guard cells open by pumping solutes into their cytoplasm, causing H20 to diffuse into the cell via osmosis Guard cells close by pumping solutes into their cytoplasm, causing H20 to diffuse into the cell via osmosis

Guard cells are the bean shaped opening of the stomata in the leaf of plants. The carbon dioxide is fulfilled by plants with the opening of guard cells, causing water to diffuse in the cell.

What is the role of stomata?

The stomata are the opening for release of water and carbon dioxide in and out of the cell. The pressure at the guard cell, marks the opening and closing of the stomata.

The turgor pressure in the guard cell is formed with the accumulation of the solute inside the stomata. The release of the solute results in the entry of the carbon dioxide to the cell via osmosis.

Thus, the guard cell open by pumping solutes in the cytoplasm, and allowing the entry of water in the cell via osmosis. Thus, option C is correct.

Learn more about guard cells, here;

https://brainly.com/question/8812601