Where does a peptide bond form?
a between the five-carbon sugar of one nucleotide and the phosphate group of another nucleotide
b between the r group of one amino acid and the carboxyl group of another amino acid
c between the amino group of one amino acid and the carboxyl group of another amino acid
d between the nitrogenous base of one nucleotide and the phosphate group of another nucleotide

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

The (blank) states that all loving things are made of cells.