Photosynthesis

Gustavo Rojo

What is photosynthesis?

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can be later released to fuel the organisms' activities.

How does water enter a plant and get to the leaves?

Water taken up by the roots of a plant is transported through a plant to the leaves and lost into the air. Water enters root hair cells by osmosis.

How does CO2 enter the leaf?

Plants get carbon dioxide from the air through their leaves. The carbon dioxide diffuses through small holes in the underside of the leaf called stomata

Where does Photosynthesis occur in the plant?

Photosynthesis takes place inside plant cells in small things called chloroplasts. Chloroplasts contain a green substance called chlorophyll. Below are the other parts of the cell that work with the chloroplast to make photosynthesis happen.

Why is sunlight important to the process of photosynthesis?

The process of photosynthesis occurs when green plants use the energy of light to convert CO2 and H2O into carbohydrates. Light energy is absorbed by chlorophyll, a photosynthetic pigment of the plant, while air containing carbon dioxide and oxygen enters the plant through the leaf.

What is the waste product for the plant and how is it removed from the plant?

Green plants produce carbon dioxide and water as respiratory products. In green plants, the carbon dioxide released during respiration gets utilized during photosynthesis. Oxygen is a by product generated during photosynthesis, and exits through stomata, root cell walls, and other routes.

What does the plant do with the sugar it makes?

The chlorophyll uses light energy from the sun to combine carbon dioxide and water to produce sugar. The by-product of this process is oxygen. The term used to describe the process by which plants make sugar is photosynthesis

What are the final products of photosynthesis and how are they important to life on this planet?

The final products of photosynthesis are glucose and oxygen. The oxygen allows animals and other organisms to breathe and produce energy through cellular respiration. The sugar is also used by other organisms to make energy. Both oxygen and glucose are ingredients in the process of cellular respiration, which all organisms undergo, to make energy.
Photosynthesis: Crash Course Biology #8