. Explain how photosynthesis and respiration are linked in orderto provide you with energy from the food you eat.
Include in your essay:
- Complete descriptions of photosynthesis and aerobicrespiration.
- Describe how these two processes are linked between plants andanimals based on the reactants and products (water, carbon dioxide,glucose and oxygen) of both pathways.
- Include a description of how energy is transferred fromsunlight to ATP, from ATP to sugars, and from sugars to yourcells.
2. In the absence of oxygen some cells and organisms can useglycolysis coupled to fermentation to produce energy from the sugarcreated by photosynthesis.
- Explain the role of fermentation in allowing an organism togenerate energy for its cell(s) in the absence of oxygen.
- Include any reactions required for this process, and explainhow the energy from the sun ends up as chemical energy for theanaerobic organism or cell.
3. Cells use enzymes as biological catalysts to increase oraccelerate the rate of reactions, such as those in photosynthesisor glycolysis. This allows reactions to occur under conditions thatsustain life.
- Explain how an enzyme catalyzes a reaction. Include in youressay the three main steps of the cycle of enzyme-substrateinteractions.
- How is enzyme activity regulated by the cell?
Reference
Audesirk, T., Audesirk, G., and Byers, B. (2008). Biology ââ¬âLife on earth with physiology (8th Ed.). San Francisco, CA:Benjamin Cummings.
. Explain how photosynthesis and respiration are linked in orderto provide you with energy from the food you eat.
Include in your essay:
- Complete descriptions of photosynthesis and aerobicrespiration.
- Describe how these two processes are linked between plants andanimals based on the reactants and products (water, carbon dioxide,glucose and oxygen) of both pathways.
- Include a description of how energy is transferred fromsunlight to ATP, from ATP to sugars, and from sugars to yourcells.
2. In the absence of oxygen some cells and organisms can useglycolysis coupled to fermentation to produce energy from the sugarcreated by photosynthesis.
- Explain the role of fermentation in allowing an organism togenerate energy for its cell(s) in the absence of oxygen.
- Include any reactions required for this process, and explainhow the energy from the sun ends up as chemical energy for theanaerobic organism or cell.
3. Cells use enzymes as biological catalysts to increase oraccelerate the rate of reactions, such as those in photosynthesisor glycolysis. This allows reactions to occur under conditions thatsustain life.
- Explain how an enzyme catalyzes a reaction. Include in youressay the three main steps of the cycle of enzyme-substrateinteractions.
- How is enzyme activity regulated by the cell?
Reference
Audesirk, T., Audesirk, G., and Byers, B. (2008). Biology ââ¬âLife on earth with physiology (8th Ed.). San Francisco, CA:Benjamin Cummings.
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Related textbook solutions
Related questions
Question 1
Which of the following statements regarding photosynthesis and cellular respiration is true?
A. | Photosynthesis occurs in mitochondria, and cellular respiration occurs in chloroplasts. | |
B. | Photosynthesis occurs in chloroplasts, and cellular respiration occurs in mitochondria. | |
C. | Photosynthesis occurs in mitochondria and in chloroplasts. |
Question 2
How do cells capture the energy released by cellular respiration?
A. | They produce glucose | |
B. | The energy is coupled to oxygen | |
C. | They produce ATP |
Question 3
During redox reactions
A. | the loss of electrons from one molecule is called reduction | |
B. | electrons are lost from one substance and added to another substance | |
C. | protons from one molecule replace the electrons lost from another molecule |
Question 4
Oxidation is the ________, and reduction is the ________.
A. | gain of oxygen; loss of oxygen | |
B. | loss of electrons; gain of electrons | |
C. | gain of protons; loss of protons |
Question 5
During cellular respiration, NADH
A. | delivers its electron load to the first electron carrier molecule. | |
B. | is chemically converted into ATP | |
C. | is the final electron acceptor |
Question 6
A drug is tested in the laboratory and is found to create holes in both mitochondrial membranes. Scientists suspect that the drug will be harmful to human cells because it will inhibit
A. | the citric acid cycle only. | |
B. | glycolysis only | |
C. | the citric acid cycle and oxidative phosphorylation |
Question 7
Which of the following metabolic pathways is common in aerobic and anaerobic metabolism?
A. | glycolysis | |
B. | the citric acid cycle | |
C. | electron transport chain |
Question 8
Which of the following is a result of glycolysis?
A. | production of CO2 | |
B. | a net loss of two ATPs per glucose molecule | |
C. | conversion of glucose to two three-carbon compounds |