Explore BrainMass

Comparing chemiosmosis in cell respiration & photosynthesis

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Need assistance comparing chemiosmosis in cell respiration and photosynthesis using the attached figures from pages 100 of my text and pg 118 to fill out the enclosed chart.

Looking at the diagram I wasn't even sure where to start. Need assistance filling out the chart.

See attached files (Chart, pg 100, pg 118)

© BrainMass Inc. brainmass.com October 24, 2018, 5:12 pm ad1c9bdddf


Solution Preview

Cell respiration and photosynthesis are both methods by which cells generate energy. However, each process is distinct and occurs in a different cellular organelle. As your figure shows, aerobic respiration occurs in the mitochondria; photosynthesis in the chloroplast (Figure 7.10B does not show this-probably an earlier figure depicts the "light reaction" of photosynthesis. The Calvin Cycle is the "dark reaction", the process by which the cell "fixes" the CO2)
<br>What the question is asking is for you to compare respiration and photosynthesis:
<br>1. "Specific membrane for electron transport": Where are the proteins required for these reactions found?
<br>a. Respiration: this can be found directly in that ...

See Also This Related BrainMass Solution

Cytology, the operation of cells

Explain how photosynthesis and respiration are linked in order to provide you with energy from the food you eat.
Include in the essay:
Complete descriptions of photosynthesis and aerobic respiration.
Describe how these two processes are linked between plants and animals based on the reactants and products (water, carbon dioxide, glucose and oxygen) of both pathways.
Include a description of how energy is transferred from sunlight to ATP, from ATP to sugars, and from sugars to your cells.

2. In the absence of oxygen some cells and organisms can use glycolysis coupled to fermentation to produce energy from the sugar created by photosynthesis.

Explain the role of fermentation in allowing an organism to generate energy for its cell(s) in the absence of oxygen.
Include any reactions required for this process, and explain how the energy from the sun ends up as chemical energy for the anaerobic organism or cell.

3. Cells use enzymes as biological catalysts to increase or accelerate the rate of reactions, such as those in photosynthesis or glycolysis. This allows reactions to occur under conditions that sustain life.

Explain how an enzyme catalyzes a reaction. Include in your essay the three main steps of the cycle of enzyme-substrate interactions.
How is enzyme activity regulated by the cell?

Audesirk, T., Audesirk, G., and Byers, B. (2008). Biology - Life on earth with physiology (8th Ed.). San Francisco, CA: Benjamin Cummings.

The essays should be several paragraphs in length for each question, be thoroughly paraphrased, and include appropriate in-text citations and a reference list in APA format.

View Full Posting Details