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Energy Changes in Chemical Reactions: Mastery Test
Drag each tile to the correct box. Not all tiles will be used.
A chemical reaction takes place in which energy is absorbed. Arrange the characteristics of the reaction in order from start to finish.
lower energy of reactants
higher energy of products
higher energy of reactants
transition state
lower energy of products
Which of the following is true of photosynthesis? a)carbon dioxide is a reactant b)water is a product c)most reactions within this process are exothermic d)oxygen is a reactant
What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna
The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations