Answer:
Explanation:
Alkali metals (rarely 'Hydrogen and the alkali metals')
Alkaline earth metals (in old chemistry this name applied only to Ca and its congeners)
Icosagens (unofficial name; aka Boron group; rarely Earth metals)
Crystallogens (unofficial name; aka Carbon group; rarely Adamantogens[a] or Merylides[b])
Pnictogens
Chalcogens
Halogens
Noble gases (rarely Aerogens). The Group name may have to be changed to the “Helium group” since oganesson is not expected to be noble.
The cell wall contains not only cellulose and protein, but other polysaccharides as well. The cell wall provides structural support and protection. Pores in the cell wall allow water and nutrients to move into and out of the cell. The cell wall also prevents the plant cell from bursting when water enters the cell.
Enzymes are proteins and they control the speed of chemical reactions in your body. Without them, the reactions would happen too slowly to keep you alive.
Some break down larger molecules into smaller ones and those enzymes are in your stomach.
Explanation:
Proteins
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