Senior citizens, most likely, will not have the option of purchasing term life insurance. Most companies have an age limit for these products, and people over 60 are just about to reach that limit for these types of products.For example, most companies will only sell a 10 year term life insurance policy to someone 65 and under.enior citizens, most likely, will not have the option of purchasing term life insurance. Most companies have an age limit for these products, and people over 60 are just about to reach that limit for these types of products.
In the human digestive system, the main sites of digestion are the oral cavity, the stomach, and the small intestine. Digestive enzymes are secreted by different exocrine glands including: 1  Salivary glands.2  Secretory cells in the stomach.he enzymes that are secreted in the stomach are called gastric enzymes. The stomach plays a major role in digestion, both in a mechanical sense by mixing and crushing the food, and also in an enzymatic sense, by digesting it.
Chemical digestion. The most important function of physical digestion is to increase the surface area of the food you eat. This makes it easier for enzymes to act on the large insoluble food molecules and break them down into small soluble ones.An enzyme is a protein molecule.Each type of enzyme catalyses a particular reaction or type of reaction.nzymes in the digestive system speed up the breakdown of the food. Enzymes are made in many places along the digestive system. 1  Carbohydrases-enzymes which break down carbohydrates into simple sugars. 2  Proteases-enzymes which break down proteins, ending up with amino acids.