Photosynthesis and Cellular Respiration — Unit test Answers

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

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

Nitrogen-fixing bacteria convert atmospheric nitrogen into forms of nitrogen that living things can use. Please select the best answer from the choices provided

What is the relationship between the oxygen cycle and the carbon cycle?

Explain the possible consequences if the Earth continues to absorb more energy than it emits.

How is the phosphorus cycle different from the oxygen, nitrogen, and carbon cycles?a.It occurs at the fastest rate.b.It is not essential to life.c.It does not occur naturally.d.It does not involve the atmosphere.

What is the role of the water cycle in sustaining life?

The chemical equation below summarizes the process of photosynthesis.6CO2 + 6H2O + energy à 6O2 + C6H12O6Where is the energy shown in the equation transferred as a result of photosynthesis?

Recall that photosynthesis consists of two sets of chemical reactions. Which of these describes the energy conversions that occur during the light-independent reactions?

How are mitochondria similar to chloroplasts?

The carbon cycle involves an exchange of carbon between _______.a.the geosphere and atmosphereb.the atmosphere and hydrospherec.the geosphere and hydrosphered.the geosphere, hydrosphere, and atmosphere

Which is an energy conversion that occurs during cellular respiration?

Explain how the need for energy is the driving force of the oxygen cycle.

The process in which nitrogen is converted into a usable form for life is called _______.a.nitrogen fixationb.photosynthesisc.greenhouse effectd.photolysis

What is the ultimate source of energy for the Earth?a.photosynthesisb.respirationc.the sund.nutrient cycles