Answer:
1a) A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.
1b)An ionic compound formed by acid-base reactions and without those ions is called a salt. Water is definitely one of the most important inorganic compounds to all living things. It is a compound comprised of two hydrogen atoms and one oxygen atom.
The four major classes of biological macromolecules are carbohydrates, lipids, proteins, and nucleic acids.
2a)Regulates body temperature. Moistens tissues in the eyes, nose and mouth. Protects body organs and tissues. Carries nutrients and oxygen to cells.
2b)If a cell is seriously deprived of water,
this lack of water would most likely affect
the cell's enzymes because:
• The cytoplasm and plasma
membrane would not function
properly
Both the plant and animal cell needs
water in order to perform their basic
functions which include transport of
materials, waste distribution, production
of genetic information, and many more.
As a result of this, we can see that there
would be a serious problem if any
of these cells are deprived of water
which would lead to the cytoplasm and
plasma membrane to partially shut
down because they would not be able to
engage in protein synthesis and other
important functions.
3a)Carbohydrates provides energy rich for organic compounds made of elements carbon, hydrogen and oxygen. The lipids contain the element nitrogen. The carbohydrates contain the only elements carbon, hydrogen, and oxygen.
3b)Organic nitrogen occurs in many forms, including amino acids, proteins, nucleic acids, nucleotides, and urea.
3c)A carbohydrate has only Carbon, Hydrogen and Oxygen, with the hydrogen and oxygen in the ratio 2:1. A protein is made of amino acids. ... So without nitrogen atoms the compound can not be a protein.