Pre-Lab 4 Worksheet - Plant Transport.pdf - 4...

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Worksheet Name ___________________________ Team Name _____________________________ Exploring Water and Nutrient Transport in Plants 59 4 PRE-LABORATORY Unlike animals, which have to nd and eat food to meet the energetic demands of life, plants are able to make their own food. is process, known as photosynthesis, allows plants to construct the organic molecules needed to fuel their energy demands and to build plant cells and tissues. Photosynthesis requires carbon dioxide, which plants get from the atmosphere, and water, which plants must absorb from the soil. However, photosynthesis occurs in the leaves of plants, which in tall trees can, in some cases, be tens or even hundreds of feet above the roots where water and essential dissolved nutrients are absorbed. So how do plants transport these material resources from their roots up to their leaves? In your reading for next week’s lab, you will discover that plants exploit a pressure gradient to move water up from the roots, through the stems to the leaves. In next week’s lab,

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