you have learned in class that changing the ph or temperature of the environment can denature an enzyme. when an enzyme is denatured, it's shape changes, preventing it from forming an enzyme-substrate complex and slowing the reaction or even causing it to stop. your group is curious about what might denature catalase. what would be the most appropriate hypothesis to use if you wanted to test conditions that could denature catalase?
a) if the amount of liver is increased, then the reaction rate will increase.
b) if the hydrogen peroxide is warmed, then the rate of the reaction will increase.
c) if the liver is placed in an acidic solution, then the reaction rate will decrease.
d) if the concentration of hydrogen peroxide is decreased, then the reaction rate will decrease.

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

Considering the yellow and green pea color phenotypes studied by gregor mendel: a. what is the biochemical function of the protein that is specified by the gene responsible for the pea color phenotype? (1 point) b. a null allele of a gene is an allele that does not specify (or encode) any of the biochemical function that the gene normally provides (in other words, either no protein at all or only non-functional protein is produced from it). of the two alleles, y and y, which is more likely to be a null allele? (1 point) c. in terms of the underlying biochemistry, why is the y allele dominant to the y allele? (2 points) d. why are peas that are yy homozygotes green? (1 point) e. the amount of protein produced from a gene is roughly proportional to the number of functional copies of the gene carried by a cell or individual. what do the phenotypes of yy homozygotes, yy heterozygotes, and yy homozygotes tell us about the amount of sgr enzyme needed to produce a yellow color? explain your reasoning. (2 points)