Photosynthesis and Cellular Respiration — Unit test Answers

The graphic below shows how photosynthesis and cellular respiration are related.Which label in the graphic represents the energy that is released from glucose by cellular respiration?

How is nitrogen returned to the atmosphere during the nitrogen cycle?a.It is returned to the atmosphere in a process called nitrogen fixation.b.It is returned to the atmosphere through denitrification.c.It is returned to the atmosphere through cellular respiration.d.It is returned to the atmosphere through evapotranspiration.

How are the carbon, oxygen, and nitrogen cycles vital to sustaining life on Earth?a.Carbon, oxygen, and nitrogen are vital components of life on Earth.b.The carbon, oxygen, and nitrogen cycles allow vital elements to return to usable form by organisms.c.The carbon, oxygen, and nitrogen cycles are an important interface between biotic and abiotic factors.d.All of the above are reasons the carbon, oxygen, and nitrogen cycles are vital to life on Earth.

An important difference between cellular respiration and photosynthesis is that when cellular respiration begins, glucose molecules are split. However, when photosynthesis begins

Which organism would be the best subject for a study of both photosynthesis and cellular respiration?

Mira analyzed oxygen and carbon dioxide in inhaled and exhaled air. She found that the percentages of both gases were different in each. What other gas would most likely also have different amounts in inhaled and exhaled air?

The sun is the ultimate source for energy on the Earth.

Which of the following statements is true? a. The nitrogen cycle is the most important cycle for life. b. The oxygen cycle is the least important cycle for life. c. Life can be sustained without any of the cycles for life present. d. All cycles of matter are equally important for life to be sustained. Please select the best answer from the choices provided

The table below shows data collected in an experiment about gases in inhaled and exhaled air.Percentages of Chemicals in Air O2CO2Inhaled20.94%0.03%Exhaled16.37%4.46%Suppose a similar experiment was set up to measure changes in air composition immediately before and two days after twenty potted plants were placed in a clear, sealed aquarium near a window. Percentages of Chemicals in Air O2CO2Before 20.94%0.03%After ??How would the second row of values in the plant experiment most likely compare to the second row of values in the original experiment?

The need for energy, gained by respiration and photosynthesis, is the driving force of the oxygen cycle.

Energy is converted from solar to chemical in Process A and then from one form of chemical to another in Process B. Which is described by Process A?

Which statement is true for both photosynthesis and cellular respiration?

What percentage of precipitation falls back onto land? a. 78% b. 92% c. 17% d. 22% Please select the best answer from the choices provided

The chemical equation below summarizes cellular respiration.6O2 + C6H12O6 à 6CO2 + 6H2O + energyThe energy that is released by cellular respiration is in the form of

Biogeochemical cycles on Earth serve a variety of different purposes. What do the biogeochemical cycles have in common? a. They all serve the same function in sustaining life on Earth. b. They all include only nonliving components of an ecosystem. c. They are all essential for sustaining life on Earth. d. They all include only living components of an ecosystem. Please select the best answer from the choices provided

Which of the following does not take place in the water cycle? a. precipitation b. evaporation c. carbonation d. condensation

Biogeochemical cycles recycle water and natural elements throughout the biosphere to ensure that organisms do not run out of these substances. Thiobacillus denitrificans is a specialized species of bacteria that obtains its energy from carbon dioxide and inorganic nitrogen-containing compounds such as nitrates in its environment. It is used in the bioremediation of groundwater that contains excess nitrate. How does Thiobacillus denitrificans help bioremediate groundwater?

Which is the relationship between photosynthesis and cellular respiration?

Hon placed aquatic plants in several test tubes that were filled with water. Then, he placed half of the test tubes in a dark closet and the other half in a well-lit room. When he recorded his data, some of the plants had formed many small bubbles on the leaves, and some did not. Which describes what Hon most likely observed and the reason for these results?

The biogeochemical cycles move through biotic and abiotic regions.