Briefly describe the relationship between photosynthesis and respiration in terms of the reactants and products of each chemical reaction.

What strategies might be employed in the future to increase world food supply. Base your answer on your knowledge of photosynthesis and related processes.

Explain why we say that photosynthesis feeds most life on Earth.

If only one half of the flora in the world existed in 2110 (perhaps due to deforestation), what do you predict the atmospheric carbon level would be ? How would you change the simulation to reflect this? What is the relationship between increased carbon in the ocean and increased carbon in the soil? How else might carbon be transferred to soil? Using the data generated by the simulation, determine the mathematical relationship between the percentage increase in fossil fuel consumption and the increase in atmospheric carbon. Is the relationship linear?

Ear Shape  In pigs, erect-ears is dominant (E) to drooping-ears (e). 1) A farmer performs a test cross on his erect-eared sow (female pig). Explain the purpose of a test cross and describe the other individual involved in the cross.   2) Create a Punnett square for each test cross possibility.  3) Write a summary sentence explaining the result of each test cross.

Besides carboxylation, the Calvin Cycle enzyme rubisco can also react with O2 (e.g. oxygenation).  The wasteful oxygenation reaction of rubisco is explained by the enzyme developing at time when there was very little O2 in the atmosphere.   Since it was developed, why hasn’t rubisco evolved to get rid of the oxygenation reaction?     A.  Mutations that decrease the affinity of rubisco for O2 probably also decrease the enzyme’s ability to bind CO2.   B.  Evolution takes time; and since rubisco is found only in eukaryotes, it evolved recently.   C.  Since it still generates one molecule of 3-phosphoglycerate (PGA), the oxygenation reaction is actually not that wasteful.   D.  Because in the past few million years the concentration of CO2 in the atmosphere has risen to be much greater than the concentration of O2.

What is the name of thr main process that brings carbon from the atmosphere into the biosphere? Hìnt- you are looking for an arrow pointing away from the atmosphere in the diagram. photosynthesis In one sentence explain why the process you identified in the previous question removes carbon from the atmosphere. stv Aa MacBook Air 80 DD F3 F4 F5 F6 F7 F8 F9 F10 # % & 3 4 5 6 7 8 9 { E R Y D F J K C V N M * 00

Animal life could not have existed if photosynthesis did not evolve.  What resources does photosynthesis produce that are essential for animal life?       oxygen   molecules that contain a great deal of chemical energy (food)   Carbon, which composes a large part of a plant's body and is therefore made available for animals.   All of the above

Describe the relationship between solar energy, biodiversity, and chemical cycling in sustaining life on Earth.