Biochemistry
Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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**Unit Conversion and Measurement Problems**

1. **Question**: What is the prefix that is used when we are expressing 1/1000 of the unit?

2. **Question**: What is the unit of measurement for volume?

3. **Question**: How many grams (g) are in 200 micrograms (µg)?

4. **Question**: There are 2.54 cm in an inch, and there are 12 inches in a foot. Calculate the height of a 6-foot 11-inch person in meters.

5. **Question**: How many micrograms (µg) does 1 µl of water weigh?  
   **Answer**: 

6. **Convert the following numbers**:  
   a. 1 µl = ________________ ml  
   b. 1.534 cm = ________________ mm  
   c. 46.8 µl = ________________ dl  
   d. 6.9732 µg = ________________ kg  

7. **Question**: A drug is given at a dosage of 25 mg/kg body weight.  
   a. Convert this dosage to µg per kg (µg/kg).  
   b. How many µg of the drug in question should be administered to a person who weighs 77 kg?  

8. **Cardiac Output and Kidney Blood Flow**:  
   At rest, the left ventricle of the heart pumps 5.0 liters of blood per minute (this is known as the cardiac output). Blood flow to the kidneys is approximately 1,220 ml per minute at rest.  

   a. **Question**: What percentage (%) of the cardiac output do the kidneys receive at rest?  
   b. **Question**: Assume that the kidneys will receive the same percentage of the cardiac output that was calculated above, regardless of whether you are resting or exercising. If the heart pumps 7.0 liters per minute during exercise, how many milliliters of blood will enter the kidneys per minute?  
   c. **Question**: What is the change in the volume of blood received by the kidneys between rest and exercise (difference between the two volumes)?  
   d. **Question**: Calculate the percentage change (Δ %) in blood flow through the kidneys between rest (first point) and exercise (last point).  

**Note**: Ensure that you understand the conversions between different units,
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Transcribed Image Text:**Unit Conversion and Measurement Problems** 1. **Question**: What is the prefix that is used when we are expressing 1/1000 of the unit? 2. **Question**: What is the unit of measurement for volume? 3. **Question**: How many grams (g) are in 200 micrograms (µg)? 4. **Question**: There are 2.54 cm in an inch, and there are 12 inches in a foot. Calculate the height of a 6-foot 11-inch person in meters. 5. **Question**: How many micrograms (µg) does 1 µl of water weigh? **Answer**: 6. **Convert the following numbers**: a. 1 µl = ________________ ml b. 1.534 cm = ________________ mm c. 46.8 µl = ________________ dl d. 6.9732 µg = ________________ kg 7. **Question**: A drug is given at a dosage of 25 mg/kg body weight. a. Convert this dosage to µg per kg (µg/kg). b. How many µg of the drug in question should be administered to a person who weighs 77 kg? 8. **Cardiac Output and Kidney Blood Flow**: At rest, the left ventricle of the heart pumps 5.0 liters of blood per minute (this is known as the cardiac output). Blood flow to the kidneys is approximately 1,220 ml per minute at rest. a. **Question**: What percentage (%) of the cardiac output do the kidneys receive at rest? b. **Question**: Assume that the kidneys will receive the same percentage of the cardiac output that was calculated above, regardless of whether you are resting or exercising. If the heart pumps 7.0 liters per minute during exercise, how many milliliters of blood will enter the kidneys per minute? c. **Question**: What is the change in the volume of blood received by the kidneys between rest and exercise (difference between the two volumes)? d. **Question**: Calculate the percentage change (Δ %) in blood flow through the kidneys between rest (first point) and exercise (last point). **Note**: Ensure that you understand the conversions between different units,
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