Bio chapter 4

organic chemistry is a science based on the study of..?
-Carbon compounds

Early 19th century scientists believed that living organisms differed from nonliving things as a result of possessing a”life force” that could create organic molecules from inorganic matter. This term is…?
-Vitalism

The Experimental approach taken in current biological investigations presume that….?
-living organisms can be understood in terms of the same physical and chemical laws that can be used to explain all natural phenomena.

One of the following people set up a closed system to mimic Earths early atmosphere & discharged electrical sparks through it. A variety of organic compounds common in organisms were formed. Who did this?
-Stanley Miller

Which of the following people was the first to synthesize an organic compound, urea, from inorganic starting materials?
-Friedrich Wohler

How many electron pairs does carbon share in order to

Sorry, but full essay samples are available only for registered users

Choose a Membership Plan
complete its valence shell?
-4

A carbon atom is most likely to form what kind of bond with other atoms?
-covalent

Which of the following statements best describes the carbon atoms present in all organic molecules?
-they were incorporated into organic molecules by plants.
-they were processed into sugars through photosynthesis.
-they are ultimately derived from carbon dioxide.

Why are hydrocarbons insoluble in water?
-the majority of their bonds are non polar covalent carbon-to-hydrogen linkages.

How many structural isomers are possible for a substance having the molecular formula C4H10?
-2

Which of the following statements correctly describes geometric isomers?
-They have variations in arrangement around a double bond.

Research indicates that Ibuprofen, a drug used to relieve inflammation and pain, is a mixture of two enantimomers; that is, molecule that….?
-are mirror images of one another.

Why is it important for this drug to consist of only one enantimetric form, rather than a mixture of enantiomers ?
-different enantiomers may have a different or opposite physiological effects.

3 or 4 of the following illustrationd depict different structural isomers of the organic compound with molecular formula C6H14. Which one if any is NOT a structural isomer of this compound?
C-C=C-C
l l
C C

Thalidmide & L-dopa, shown below, are examples of pharmaceutical drugs that occur as enantiomers, or molecules that…?
– are mirror images of one another.

A compound contains hydroxyl groups as its predominant functional group. Which of the following statements is true concerning this compound..?
-it should dissolve in water.

Which is the best description of carbonyl group?
– A carbon atom joined to an oxygen by a double covalent bond.

What is the name of the functional group shown?
R-C=O -o-h
-Carboxyl

Which of the following contains nitrogen in addition to carbon, oxygen, & hydrogen?
-an amino acid such as glycine.

Which of the following is a false statement concerning amino groups?
-They are nonpolar.

Which two functional groups are always found in amino acids?
-carboxyl & amino

Amino Acids are acids because they always possess which functional group?
-Carboxyl

A carbon skeleton is covalentley bonded to both an amino and a carboxyl group. When placed in water it…?
-Would function as both an acid and a base.

A chemist wishes to make an organic molecule less acidic. Which of the following functional groups should be added to the molecule in order to do so?
-amino

Which functional groups can act as acids?
-carboxyl and phosphate

Tagged In :

Get help with your homework


image
Haven't found the Essay You Want? Get your custom essay sample For Only $13.90/page

Sarah from studyhippoHi there, would you like to get such a paper? How about receiving a customized one?

Check it out