Skip to main content

Does a) the Calvin cycle, b) pigment, c) the citric acid cycle, d) electron transport chain and e) oxidative phosphorylation take place in...

I'm going to break this down by process. First, I'll discuss photosynthesis. In photosynthesis, pigments in the chloroplasts (often times in the leaves) absorb specific wavelengths of light to begin the light-dependent reactions. The light-dependent reactions use the energy from light to perform photophosphorylation (similar to oxidative phosphorylation except it is powered by photons of light instead of electron-carrying molecules) which produces ATP and NADPH. There is an electron transport chain that occurs during photophosphorylation,...

I'm going to break this down by process. First, I'll discuss photosynthesis. In photosynthesis, pigments in the chloroplasts (often times in the leaves) absorb specific wavelengths of light to begin the light-dependent reactions. The light-dependent reactions use the energy from light to perform photophosphorylation (similar to oxidative phosphorylation except it is powered by photons of light instead of electron-carrying molecules) which produces ATP and NADPH. There is an electron transport chain that occurs during photophosphorylation, and it has a similar purpose to the electron transport chain in oxidative phosphorylation because it works to set up an electrochemical gradient. The ATP and NADPH produced during the light dependent reactions power the reactions of the Calvin cycle, which produces food for the plant in the form of glucose.


In cellular respiration, glucose is broken down and the energy is converted into ATP. The process begins with glycolysis which breaks glucose down into pyruvate. The pyruvate is then used in the citric acid cycle which produces carbon dioxide as waste and NADH and FADH2, the electron-carrying molecules. These molecules transfer electrons to the electron transport chain which sets up the electrochemical gradient for ATP synthesis. This process is known as oxidative phosphorylation.


So, the electron transport chain is common to both processes, but of the other items in your question are unique to either photosynthesis or cellular respiration.

Comments

Post a Comment

Popular posts from this blog

How and why does James Gatz become Jay Gatsby? Describe the young Gatsby/Gatz.

James Gatz, a poor Midwestern boy of probable Jewish lineage, becomes Jay Gatsby, a presumed WASP and wealthy socialite, when he moves to New York City and acquires his fortune. It is wealth that has allowed Gatz to transform himself into Gatsby. However, those who know his background (e.g., Daisy and Tom Buchanan) never allow him to forget that he is nouveau riche -- that is, an upstart who has just recently made his fortune,... James Gatz, a poor Midwestern boy of probable Jewish lineage, becomes Jay Gatsby, a presumed WASP and wealthy socialite, when he moves to New York City and acquires his fortune. It is wealth that has allowed Gatz to transform himself into Gatsby. However, those who know his background (e.g., Daisy and Tom Buchanan) never allow him to forget that he is nouveau riche -- that is, an upstart who has just recently made his fortune, whereas they arose from well-to-do families. Gatz became Gatsby through determination and discipline. At the end of the novel, the narr...
Post a Comment
Read more

What gift did Della buy for Jim and why in "The Gift of the Magi" by O. Henry?

Della buys Jim a watch fob because his watch is his most prized possession. Della and Jim Young do not have much money. Despite this, Della really wants to buy Jim a good Christmas present. She is even willing to sell her hair to get him a nice gift. This is ironic because we learn Della and Jim both highly prize her hair. Now, there were two possessions of the James Dillingham Youngs in which... Della buys Jim a watch fob because his watch is his most prized possession. Della and Jim Young do not have much money. Despite this, Della really wants to buy Jim a good Christmas present. She is even willing to sell her hair to get him a nice gift. This is ironic because we learn Della and Jim both highly prize her hair. Now, there were two possessions of the James Dillingham Youngs in which they both took a mighty pride. One was Jim's gold watch that had been his father's and his grandfather's. The other was Della's hair.  Della is still willing to sell her hair so she can b...
Post a Comment
Read more

Explain and discuss how the definitions of freedom change for the nation, for the freedmen and for southern whites after the Civil War.

After the Civil War, the definition of freedom changed in the nation, as slavery was ended with the 13th Amendment to the Constitution in 1865. The practice of slavery was disallowed, but definition of the freedom that would take its place was a subject of controversy, ongoing debate, and even violence in the decades to come.  For freedmen, freedom often meant reconciling with their families, who were broken up by slavery; choosing which church to... After the Civil War, the definition of freedom changed in the nation, as slavery was ended with the 13th Amendment to the Constitution in 1865. The practice of slavery was disallowed, but definition of the freedom that would take its place was a subject of controversy, ongoing debate, and even violence in the decades to come.  For freedmen, freedom often meant reconciling with their families, who were broken up by slavery; choosing which church to belong to without being ordered to attend religious services (or not to attend) by their mast...
Post a Comment
Read more