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).
In a chloroplast, the stacks of membranous sacs are called  thylakoid membranes. Grana is the term used to refer to the stacks  of thylakoids.It is in this internal part of â¦ the chloroplast where  photosynthesis occurs.Answered.n a chloroplast, the stacks of membranous sacs are called  thylakoid membranes. Grana is the term used to refer to the stacks  of thylakoids.