Natural Selection
Chemistry
water & pH & polarity
protein
Random
100

The natural selection 

key mechanism of evolution

100

The nitrogen atom that gains a proton

changes to oxygen

100

The pH of 7 

neutral 

100

The protein monomer 

amino acids 

100

The base unit for length in the metric system?

meter 

200

The part of natural selection that is random  

mutation 

200

The number of protons an element has

equal to the atomic number of the element.

200

The adding an acid to a solution

decreases the pH

200

The structures in protein how many 

4

200

The octect rule how many electrons 

8

300

The part of natural selection that is not random 

adaptation and selection pressure

300

The bond type between Mg and S

ionic bond 

300

The adding a base to a solution

increases the pH 

300

The protein polymers

polypeptides

300

The kind of reaction used to break up a polymer

Hydrolysis

400

The genetic variation comes from 

mutation

400

The positive ions form

when an atom looses an electron

400

The pH is 

a measure of H+ concentration in a solution

400

The amino acids are linked together using the dehydration reaction

peptide bonds 

400

The backbone structure of DNA is linked

phosphodiester bonds

500

The mutations beneficial or harmful 

depends on the environment

500

The isomer is 

molecules with the same chemical formula but different structures

500

The concentration of protons in pure water is

[H+] = 10-7 M

500

The monomer of nucleic acids?

nucleotide

500

The phosphate functional group 

-OPO3^2-

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