They don't HAVE to. Methane CH4 is an organic compound and (as you can see) isn't all that big. However the vast majority of them are large, into the hundreds if not thousands of atoms. DNA and protein chains can be exceedingly long.
Organic and inorganic compounds contain atoms. Everything that exists contains atoms because everything is energy. Plants and wildlife are composed of organic material that is essentially atoms.
they always contain glucose or atoms of sugar
not always...
aliphatic
In general organic compounds / substances / materials contain carbon atoms bonded with other atoms and/or those related to life. It is the chemistry of carbon containing compounds. Inorganic is everything else and generally do not contain carbon (with some exceptions).
OH-
Yes, all the compounds contain different types of atoms.
The basic building block of all compounds is atoms. Compounds contain atoms of at least two different elements bonded to one another. Thus, atoms of elements are what form compounds.
Elements contain only one type of atom (atoms with the same number of protons). Compounds contain more than one element, and thus contain atoms with different numbers of protons. Compounds can be converted into elements, but elements are not reducible to anything simpler (besides subatomic particles).
There are plenty of compounds that do: ethanol-AKA Jack Daniels/beer/vodka rubbing alcohol sugar proteins carbohydrates fats
they always contain glucose or atoms of sugar
In general, organic compounds are those compounds which contain both carbon and oxygen, and inorganic compounds lack these atoms. Of couse, this does not always apply, as carbon dioxide and carbon monoxide also contain both these elements and are still labeled as inorganic.
They may contain chain of carbon atoms.
In general organic compounds / substances / materials contain carbon atoms bonded with other atoms and/or those related to life. It is the chemistry of carbon containing compounds. Inorganic is everything else and generally do not contain carbon (with some exceptions).
He said that compounds are formed when atoms of different elements combine
Compounds are composed of two or more atoms of different elements.
An 'atom' contains only protons, neutrons and electrons, and the number of those determine what element or isotope of that element the atom is. It is therefore impossible to say an atom can 'contain' an element.
All compounds contain more than one element and more than one atom.