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Hey, i understand that i am only suppose to upload one question at a time but i

ID: 94987 • Letter: H

Question

Hey, i understand that i am only suppose to upload one question at a time but i really need your guys help. I did horrible on my BIO-2 test and I need to know what i did wrong becuase this material is going to be on the final test so I need to know what i did wrong. Please help me with these multiple choice questions. Please answer all of them i would really appreciate it! Thank you so much for your time and help!

38. The diversity of the or A. the valence of hydro B. the valence of carbon C. the valence of nitroge of the organic molecs on dromoleces are possible mainly due to: f carbogen which is one of carbon which 15s one e of nitrog which is four n which is on D. the valence of oxygen which is two hich is one 39. A common property of all lipids is: A. They contain glycerol B. They contain fatty acids with long hydrocar C. They are insoluble in water D. They are used as energy stores E. The are used to construct membranes bon tails

Explanation / Answer

37. The answer is: c. A steroid.

Steroids are those organic compounds which are made up of four carbon rings. As the figure shows a four carbon ring structure, so it must be a steroid.

It is not a sugar (monosaccharide or polysaccharide) because it does not follow the empirical formula of sugar, it is not a mononucleotide because there is no phosphate group attached. It is also not an amino acid because it does not have an amino group.

38. The answer is: B. the valence of carbon is four.

As organic compounds are compounds made of carbon and hydrogen, its diversity is explained by the fact that carbons valency is four due to which it can bind to four different atoms.

Hydrogen valency is one - so the diversity of organic compounds is not defined by the hydrogen atom.

Nitrogen and oxygen are not essential for a compound to be organic.