Chapter 4 Flashcards
Experimental approach taken and current biological investigations, presumes that-
Living organisms can be understood, in terms of the same physical and chemical laws that can be used explain on natural phenomena 
Differences among organisms are caused by differences in the-
Types and relative amount of organic molecules synthesized by each organism
Stan Lee Miller’s, 1953 experiment support the hypothesis that
Organic molecules can be synthesized abiotically under conditions that may have existed in early earth
Which Gaston Miller not use with his experiments
Oxygen
Why is carbon so important in biology?
I can form a variety of carbon skeleton and host functional groups
Why are hydrocarbons insoluble in water?
The majority of their bonds are nonpolar covalent carbon to hydrogen linkages
Which of the following statements correctly describes cis-trans isomers
They have variations in arrangements around a double bond
What are enantiomers
Molecules that have mirror images of each other
What determines whether a carbon atoms covalent bonds to other atoms are in tetrahedral configuration or planer configuration?
The presence or absence of double bonds between the carbon atom and other atoms
What carbon molecule does not have a bond angle of 109.5°?
C2 H4
Organic molecules with only hydrogen and five carbon atoms cannot
Form enantiomers
What is a structural isomer
Isomers that differ and covalent partners forming a different shape, but same molecules
What functional group is not reactive, but serves as a recognizable tag on the DNA molecule and alters expression of genes in the cells
Methyl
What to functional groups are always found in amino acids
Carboxyl an amino groups
Why are amino acids acids?
They contain carboxyl as their functional group
