Nucleic Acids
It depends on why you mean by "fat" molecules. Lipids in general are usually composed of carbon, hydrogen, and oxygen but they can contain other elements such as phosphorous or nitrogen.
Nitrogen is composed of molecules each containing two nitrogen atoms
Hydrogen bonds occur between polar molecules when hydrogen is linked to nitrogen, phosphorous or fluorine.
DNA comes to mind.
True.
No, it is a molecules composed of a nitrogen atom bonded to three hydrogen atoms.
Air is composed of non-metals (Nitrogen, Oxygen, Carbon Dioxide, Hydrogen, assorted Noble Gasses), as is water (H2O), and the majority of living matter (Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorous)
No. There are many molecules that are composed of only one element, such as hydrogen, H2, oxygen, O2, and nitrogen, N2.
No, it does not contain gold. Hemoglobin is an organic polymer and globular protein consisting of carbon, hydrogen, nitrogen, oxygen, and sulfur with an iron core. When discussing molecules that are organic, they are typically composed of some combination of the elements sulfur, phosphorous, oxygen, nitrogen, carbon, and hydrogen. In college chem, we always learned to remember this with the word "SPONCH".
At sufficiently high temperatures and low pressures, all elements are composed of atoms. At standard temperature and pressure, some elements are composed of molecules, usually diatomic molecules, as with nitrogen, hydrogen, oxygen, and all the halogens.
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous!
1. Energy (from Sun) 2. Water 3. Complex Organic Molecules (From Carbon, Hydrogen, Nitrogen, Phosphorous) such as Amino acids