P5 Electrical System Notes PDF

1, Plants have a transport system to transport the food made by the leaves of plants, and the water and mineral salts absorbed by the roots to other parts of the plant. 2\. Food / sugar is transported to all parts of the plant from the leaves during photosynthesis through the food-carrying tubes....

1, Plants have a transport system to transport the food made by the leaves of plants, and the water and mineral salts absorbed by the roots to other parts of the plant. 2\. Food / sugar is transported to all parts of the plant from the leaves during photosynthesis through the food-carrying tubes. 3\. Water and mineral salts are transported from the roots to other parts of the plant through the water-carrying tubes. 4\. The blue-coloured tubes are known as water-carrying tubes. They run through the whole plant including the leave, stem and roots. 5\. The water-carrying tubes transport water and dissolved mineral salts absorbed by the roots upwards to the other parts of the plant through the stem. 6\. The red-colored tubes are known as food-carrying tubes. They run through the whole plant such as the leaves, stem and roots. 7\. The food-carrying tubes transport food made in the leaves during photosynthesis to other parts of the plant. 8\. The water-carrying tubes lie on the INSIDE of the stem while the food-carrying tubes lie on the OUTSIDE of the stem (WIFO). 9\. What happens when a cut is made to remove the food-carrying tubes?  \- The parts of the plant below the cut will not be able to receive the food made in the leaves through photosynthesis. Food / sugar will accumulate at part X and part X will bulge. Without food, the parts below the cut such as the roots will die. When the roots die, water and mineral salts cannot be absorbed by the plant and the plant will die. 10\. What happens when a cut is made to remove the water-carrying tubes below? \- The parts of the plant above the cut will not be able to receive water and mineral salts. The leaves below the cut will survive as they can receive water and mineral salts. However, the leaves / and other parts of plant above the cut will die as they are not able to receive water and mineral salts. 11\. Consider the experiment below:  \- Claim: the leaves on the left side of the stalk will become blue while the leaves on the right hand side of the stalk will become red. \- Explanation: There are separate water-carrying tubes in the stem of the plant. The water-carrying tubes on the left side of the stalk are dipped into blue-coloured water, so these water-carrying tubes will transport the blue-coloured water up the stem to the leaves on the left side of the stalk. The water-carrying tubes on the right side are dipped in red-coloured water, so these tubes will transport the red-coloured water up the stem to the leaves on the right side. \- This experiment shows that there are separate water-carrying tubes in the stem of a plant. 1, Plants have a t\_\_\_\_\_\_\_\_\_\_\_ system to transport the f\_\_\_\_\_\_ made by the l\_\_\_\_\_\_\_ of plants, and the water and mineral salts absorbed by the roots to other parts of the plant. 2\. Food / sugar is transported to all parts of the plant from the leaves during photosynthesis through the food-carrying tubes. 3\. Water and mineral salts are transported from the roots to other parts of the plant through the water-carrying tubes. 4\. The blue-coloured tubes are known as water-carrying tubes. They run through the whole plant including the leave, stem and roots. 5\. The water-carrying tubes transport water and dissolved mineral salts absorbed by the roots upwards to the other parts of the plant through the stem. 6\. The red-colored tubes are known as food-carrying tubes. They run through the whole plant such as the leaves, stem and roots. 7\. The food-carrying tubes transport food made in the leaves during photosynthesis to other parts of the plant. 8\. The water-carrying tubes lie on the INSIDE of the stem while the food-carrying tubes lie on the OUTSIDE of the stem (WIFO). 9\. What happens when a cut is made to remove the food-carrying tubes?  \- The parts of the plant below the cut will not be able to receive the food made in the leaves through photosynthesis. Food / sugar will accumulate at part X and part X will bulge. Without food, the parts below the cut such as the roots will die. When the roots die, water and mineral salts cannot be absorbed by the plant and the plant will die. 10\. What happens when a cut is made to remove the water-carrying tubes below? \- The parts of the plant above the cut will not be able to receive water and mineral salts. The leaves below the cut will survive as they can receive water and mineral salts. However, the leaves / and other parts of plant above the cut will die as they are not able to receive water and mineral salts. 11\. Consider the experiment below:  \- Claim: the leaves on the left side of the stalk will become blue while the leaves on the right hand side of the stalk will become red. \- Explanation: There are separate water-carrying tubes in the stem of the plant. The water-carrying tubes on the left side of the stalk are dipped into blue-coloured water, so these water-carrying tubes will transport the blue-coloured water up the stem to the leaves on the left side of the stalk. The water-carrying tubes on the right side are dipped in red-coloured water, so these tubes will transport the red-coloured water up the stem to the leaves on the right side. \- This experiment shows that there are separate water-carrying tubes in the stem of a plant.