The graph shows how enzymes affect reaction in cells compared to reactions that do not use enzymes.
Match the following statement to the graph.
Enzymes are proteins that have a three-dimensional shape that is specific to a particular substrate. Environmental conditions can change the shape of the protein.
What is the most likely result if the shape of the enzyme changes?
For an enzyme to be able to catalyze a reaction, the active site must —
Rennin is an enzyme that catalyzes a reaction that solidifies milk. Rennin was added to three different test tubes with milk. Each test tube was placed in a water bath for ten minutes. The data collected during the experiment are shown.
Which statement best explains the result of test tube 3?
Penicillin is an antibiotic (medicine) that a doctor may prescribe you if you are feeling sick. Penicillin works by inhibiting (stopping) the enzyme transpeptidase from properly forming the cell walls of bacteria cells.
A diagram representing the process of penicillin (enzyme inhibitor) acting on transpeptidase (enzyme) is shown below.
Will the enzyme be able to catalyze the reaction with the substrate properly? Explain why or why not.
Look at the diagram carefully. Then enter your answer and explanation in the box provided.
People who have Alzheimer's disease experience an increasing loss of brain function and cognition over time. Alzheimer's is characterized by a building of abnormal protein fragments that damage brain cells. Recently scientists have discovered an enzyme, BACE2, that decreases these abnormal protein fragments in the brain of a person with Alzheimer's diseases.
Which statement explains how BACE2 most likely works?
Short Answer: Enzymes -
Raw shrimp and fish can contain bacteria, including disease-causing bacteria. These bacteria, like all living organisms, contain proteins. Remember proteins are vital to the health and functioning of the organism.
a. Describe what occurs in disease-causing bacteria when shrimp and fish are cooked (on the grill, in the oven, on the stove, etc.)
and
b. Ceviche is a dish where raw shrimp and fish are soaked in lemon or lime juice, which has a very low pH, for many hours. Explain why it is safe to eat ceviche.
*Make sure your answers describe the reaction between the oven, enzymes, and proteins at play when food is cooked in the oven versus when it is made using the ceviche method.
Think about the scenarios carefully, then respond to BOTH A and B.
The sweet taste of freshly-picked corn is due to the high sugar content in the kernels. Enzymes change about 50% of the sugar to starch within one day after picking. To preserve its sweetness, the freshly picked corn is immersed in boiling water for a few minutes, and then cooled.
Which statement most likely explains why the boiled corn kernels remain sweet?
Which of the following is a true statement about the relationship between pH and enzyme activity?
Based on the picture above, if Enzyme 2 stopped functioning, which of the following would occur?
