Water
1. A red blood cell placed in salt water will:
a. Lose water and the cells will plasmolyze
b. Take up water and burst
c. Take up water and become turgid
d. Become impermeable to prevent water loss
e. Actively transport water in
2. A red blood cell placed in distilled water will:
a. Lose water and the cells will plasmolyze
b. Take up water and burst
c. Take up water and become turgid
d. Become impermeable to prevent water loss
e. Actively transport water in
3. The functions of the kidney are to:
a. Regulate water and excrete undigested food
b. Excrete undigested food and nitrogen
c. Regulate water and excrete nitrogen waste
d. Make urea and store water
e. Digest proteins and regular water
4. Which one of the following would cause a person to produce the greatest volume of urine? Drinking 1 liter of:
a. Distilled water
b. Water with 0.9% salt
c. Water with 3% salt
d. Water with 5% sugar
e. Water with 5% salt
5. Drinking 1 liter of beer results in a greater volume of urine than drinking 1 liter of water because:
a. Beer is hypertonic to human cells
b. Beer has more water
c. Alcohol inhibits antidiuretic hormone
d. Alcohol blocks the kidneys
e. Beer is hypotonic to human cells
6. All of the following are true statements. Which one is an example of bioremediation?
a. Desalination to produce drinking water
b. Removal of chlorine by chemical precipitation
c. Removal of chemicals by reverse osmosis
d. Use of ozone to kill bacteria in water
e. Bacterial degradation of hydrocarbons
7. The effect of dumping sewage into which of the following causes the greatest decrease in dissolved oxygen of the water?
a. Fast moving river
b. Slow moving river
c. Large lake
d. Small pond
e. All of equally harmed
8. Drinking water for most homes in San Mateo County comes from:
a. The Owens Valley
b. Hetch Hetchy Reservoir on the Colorado River
c. Crystal Springs Reservoir
d. The Sacramento River
e. Hetch Hetchy Reservoir on the Tuolumne River
9. Anadromous fish like salmon and steelhead trout adjust to salt water by:
a. Urinating constantly and not drinking
b. Decreasing urine volume and not drinking
c. Urinating and drinking constantly
d. Decreased urine volume and increased drinking
e. None of the above, salmon are freshwater fish
10. You are expecting company and the carrots and celery you were going to serve are wilted. You can make them look and feel fresh if you soak them:
a. In water with 5% salt
b. In water with 0.9% salt
c. In water with 5% sugar
d. In distilled water
e. In cold water with salt
11. Urea is a waste product excreted by many animals including humans. The urea is produced from the cellular digestion of:
a. Sugars
b. Proteins
c. Lipids
d. Starch
e. All of the above
12. In California, you have rights to water if you:
a. Were using it first
b. Live along the water course
c. Have reasonable use
d. Pay taxes
e. a or b
13. Salts and sugars work to preserve foods because they:
a. Create an isotonic environment
b. Are toxic
c. Create a hypertonic environment
d. Increase the amount of water
e. Kill bacteria
14. Which one of the following is essential for all living organisms?
a. Organic compounds
b. Vitamins
c. Air
d. Water
e. Light
15. Biochemical oxygen demand (BOD) is a measure of the:
a. Amount of dissolved oxygen in water
b. Amount of bacteria in water
c. Amount of organic matter in water
d. Amount of fish in water
e. None of the above