The terms listed below describe functions and examples of carbohydrates and lipids. Select whether each statement applies to carbohydrates, lipids, or both.
Carbohydrates | Lipids | Both | |
|---|---|---|---|
An example is cellulose or chitin | |||
Provides energy | |||
Makes up the cell membrane | |||
Provides insulation |
Jose is feeling tired in class, so he wants to eat something that will give him energy. Which part of the label should Jose look at to figure out what food will give him the most quick energy?
Which statement best describes the function of biomolecules in cells?
Scenario:
Larissa is preparing for a hiking trip. She wants to pack a snack to help rebuild and repair her muscles after the hike.
Food Options:
Larissa has two types of nutrition bars that she could take with her but only has space to pack one.
Question:
Which bar should Larissa choose to support muscle repair and rebuilding, AND why is that bar more appropriate than the other?
Read the question carefully. Then enter your answers in the box provided.
A table of four types of carbohydrates is shown.
Which list correctly matches the functions to the types of carbohydrates?
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?
Taq polymerase is an enzyme used in the polymerase chain reaction (PCR) to replicate fragments of DNA. A study published in 1976 examined the properties of Taq polymerase after the enzyme was isolated from Thermus aquaticus, a thermophilic bacterium that lives in the hot springs of Yellowstone National Park. The graph shows one of the results of the study.
LOW - need to type
What is the optimal temperature of this enzyme?
What happened to the enzyme activity after 37º C?
Which of the following is true about enzymes?
