Materials:  Three clean test tubes  Four beakers  Two 5 mL Graduated pipet   Hydrogen peroxide (H2O2)  Catalase (potato)  Ruler  Wax pencil  Procedure:  In order to test enzyme concentration, we will be diluting the catalase with water. Use the beakers to dilute the catalase. Mix according to the table below.  Beaker  Water  Catalase  Concentration  1  3 mL of water  1 mL of Catalase  25%  2  2 mL of water  2 mL of Catalase  50%  3  1 mL of water  3 mL of Catalase  75%  4  0 mL of water  4 mL of Catalase  100%  Label each of your test tubes (E1, E2, E3, and E4).  To each of your test tubes add 4 mL of hydrogen peroxide.   To E1, add 1 mL of 25% Catalase. Carefully swirl the mix, wait 30 seconds, and record the bubble height (mm) in Table 3.  To E2, add 1 mL of 50% Catalase. Carefully swirl the mix, wait 30 seconds, and record the bubble height (mm) in Table 3.  To E3, add 1 mL of 75% Catalase. Carefully swirl the mix, wait 30 seconds, and record the bubble height (mm) in Table 3.  To E4, add 1 mL of 100% Catalase. Carefully swirl the mix, wait 30 seconds, and record the bubble height (mm) in Table 3.  Results: (Watch the Lab 7. Enzymes video)  Table 3: Effects of Enzyme Concentration (Copy and paste the table to answer Question 18 and fill it in with your data) Test Tube  Catalase Concentration  Bubble Height (mm)  E1      E2      E3      E4     

Which condition is mostly likely to cause V/Q mismatch?

Which of the following drugs is a long-acting bronchodilator?

Catecholamines are unsuitable for which route of administration?

Which of the following are considered a benefit of daily use of inhaled corticosteroids?

Which of the following is an example of a mineralocorticoid?

An asthma patient presents to the ER after complaining of increased shortness of breath and dyspnea for much of the day. The patient is being seen at 2100 and stated she has been having trouble breathing ALL day since she woke up. Which of the following would you recommend to help alleviate the patient’s symptoms?

A parasympathomimetic agent that intensifies the level of bronchial tome to the point of bronchial constriction and is used in bronchial provocation testing is:

Which of the following effects does histamine have on systemic circulation?

How is exogenous surfactant administered?