Bananas will turn brown when cut open because enzymes are released from the cut cells that react with other molecules in the fruit. A caterer, preparing fruit trays for a banquet, adds lemon juice (citric acid) to the cut bananas to prevent the reaction. Which explanation best describes why the lemon juice prevents the browning?

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a. m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

A(n) is a molecule influences the way that a molecule reacts.

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?