Limiting reactant is the reactant that limits the amount of a product that can be formed in a chemical reaction. For example, suppose we have 4 bolts and 8 nuts. No matter how many nuts are there, we need only 4 nuts as we have got 4 bolts. Same thing about a chemical reaction. If the limiting reactant is fully consumed, the reaction will stop even if the other reactant still remains unreacted. That reactant is called excess reactant.
Creative Commons photo by Philip Bouchard. The pistil is a flower's female organ. Pistils are typically located in the center of the flower and are surrounded by petals, sepals and stamens. Some flowers, such as the sweet pea, have one simple pistil, while others, including larkspur, have more than five pistils.reative Commons photo by Philip Bouchard. The pistil is a flower's female organ. Pistils are typically located in the center of the flower and are surrounded by petals, sepals and stamens. Some flowers, such as the sweet pea, have one simple pistil, while others, including larkspur, have more than five pistils.
The Leaf. Two Functions of the Leaf. 1  Photosynthesis is the process when leaf cells containing chlorophyll take in carbon dioxide and water and using sunlight, make sugar and oxygen. 2  Transpiration is the loss of water from the leaf.3  This helps to draw water up through the plant from the roots. The female part of the flower is the pistil (composed of the stigma, the thin style and the ovary). 2  Pollination occurs when pollen is transferred by insects or wind from the anther to the stigma. 3  Chemicals called enzymes 'drill' a channel down through the style to the ovary where the egg is.