Thursday, January 26, 2012

How do stems absorb water & nutrience?

I just did an experiment for school, i put food coloring in water %26amp; saw what happened to white carnations when the water was aborbs through the stem.



I need a VERY scientific explanation for this 2 put in my report.



I mean like, stuff with cells %26amp; how it gets carried to the petals %26amp; is spread throughout the plant %26amp; how chlorophil fits into it, etc.

How do stems absorb water %26amp; nutrience?
Plants absorb water through their roots through osmosis. The water travels up tubes in the stems called phloem. The water travels to all parts of the plants, and is used during photosynthesis to make food for the plant, and also to make plant parts. When food coloring is added to the water, it travels with the water into the carnation's white petals, coloring the phloem (tubes) blue. The blue showed up on the white petals, but since blue is a component of green (yellow is the other component), it is not so obvious on the xylem (green tissue) of the plant, even though the blue food coloring also got absorbed into the green parts like the stem, leaves, and sepals. Plants also absorb nutrients from the soil through the roots and up through the phloem in the plant's stems. The blue food coloring illustrates how nutrients are delivered to all parts of the plant through the plant's phloem.



Water is composed of two hydrogen and one oxygen atom. One of the many gases in air is carbon dioxide. In a process called photosynthesis, the plant uses photons (energy wave/particles from the sun) as power to break apart the water and carbon dioxide molecules, and rearrange the atoms to form cellulose (plant parts), glucose (sugar) for food. This process leaves leftover oxygen, which it releases into the air. You exhale carbon dioxide and the plant breathes it, and the plant exhales oxygen and you breathe it. Photosynthesis occurs on individual cells called cholorplasts, that make up the chlorophyll which gives plants their green coloring.

racing shoes

No comments:

Post a Comment