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Practice Question

The following diagram summarizes the carbonic acid-bicarbonate ion buffer system of the blood.CO2 + H2o   HC03- + HO Which of the following equations shows the reaction that takes place when there are excessive protons (H*) in the blood?

Answer Choices:

Correct Answer:

H2CO3-+H+ H2CO3

Rationale:
Excess protons shift equilibrium to form carbonic acid.
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This question is from Science - Test 6 which contains 50 questions.

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Carbon has an atomic number of 6. Which of the following is true about the isotope C-12?

Answer Choices:

A. C-12 possesses 7 neutrons and 5 electrons in its nucleus
B. C-12 possesses 7 protons and 5 neutrons in its nucleus.
C. C-12 possesses 6 protons and 6 electrons in its nucleus.
D. C-12 possesses 6 neutrons and 6 protons in its nucleus.
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The following diagram summarizes the carbonic acid-bicarbonate ion buffer system of the blood.CO2 + H2o   HC03- + HOWhich of the following equations shows the reaction that takes place when there are excessive protons (H*) in the blood?

Answer Choices:

A. H2CO3- + H+ ---> H2CO3
B. H2CO3 ---> HCO3- + H+
C. CO2 + H2O ---> H2CO3
D. H2CO3 ---> CO2 + H2O
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A student investigating the importance of wavelengths above and below the visible spectrum for photosynthesis sets up an experiment as follows over a 2-month period, all with illumination at 1-meter distance from plants grown with the same soil and watering conditions. 3 Arabidopsis plants exposed to ultraviolet light (UV)3 Arabidopsis plants exposed to infrared light (IR)3 Arabidopsis plants exposed to white light At the end of the experiment, she finds that the IR treated plants are scorched, the UV treated plants have wilted, but the white light-treated plants are growing normally. Which of the following statements is most likely to be correct?

Answer Choices:

A. Infrared light contains more energy than the other wavelengths.
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Science - Test 6

50 Questions

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Question Details
  • Category: ATI TEAS
  • Subcategory: SCIENCE
  • Domain: SCIENCE - Section.
  • Answer Choices: 4
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