Raw Materials. Saxophones are primarily made from brass. Brass is a composite alloy made up of metals including copper, tin, nickel, and zinc. The most common type used for instruments is yellow brass which contains 70% copper and 30% zinc. Other types include gold brass and silver brass which have different ratios.
3. Cristae contain enzymes important to ATP production; cristae also increase the surface area for ATP production. e. Lysosomes are membrane-enclosed sacs that contain hydrolytic enzymes, which are important in intracellular digestion, the recycling of a cellâs organic materials and programmed cell death (apoptosis).Lysosomes carry out intracellular digestion in a variety of ways.. Cristae contain enzymes important to ATP production; cristae also increase the surface area for ATP production. e. Lysosomes are membrane-enclosed sacs that contain hydrolytic enzymes, which are important in intracellular digestion, the recycling of a cellâs organic materials and programmed cell death (apoptosis).
Intercellular Digestion: 1. Digestion occurs in the food vacuoles within cells. 2. Lysosomal enzymes are secreted into the food vacuole. 3. Products of digestion diffuse into cytoplasm through vacuolar membrane. 4. Ingestion occurs through pinocytic vesicle,e.g. protozoans, spongens and coeleneterates. 1. Digestion occurs outside of cells in the lumen of the alimentary canal. 2. Salivary, gastric pancreatic and intestinal enzymes are secreted into the digestive cavity. 3. Digested food materials are absorbed into blood through gut epithelia.