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.
Although the filament may be thought of as just a simple stalk, it actually has a very important function. The filament is responsible for getting the pollen-bearing anther as close to the top of the pistil as possible because this is the location where pollen will be transferred to the female reproductive organ.