How does chemosynthesis differ from photosynthesis?
Correct answer: A. Source of energy to carry out the reaction
- A. Source of energy to carry out the reaction
- B. Production of organic compounds
- C. Reduction of CO2
- D. Carried out by bacteria
Explanation
Chemosynthesis and photosynthesis are both processes that produce organic compounds, but they differ in the source of energy used.Photosynthesis: Uses light energy to convert carbon dioxide and water into glucose and oxygen. Light-dependent reactions, occurring in the thylakoid membranes of chloroplasts, capture energy from sunlight.Chemosynthesis: Uses chemical energy to convert carbon dioxide and water into glucose and sulfur compounds (or other chemical compounds). Energy is obtained from the oxidation of inorganic substances, such as hydrogen sulfide or methane, rather than from sunlight.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
Practise Bioenergetics
1,378 free Bioenergetics MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Bioenergetics questions
3-Phosphoglycerate in the presence of ATP and reduced NADP (from the light-independent stage) is reduced to:
Oxygen, released into the atmosphere, comes from:
Dark reaction of photosynthesis takes place in _ of the chloroplast.
Chlorophyll molecule resemble the haem group of hemoglobin, the main difference between these two molecule is that chlorophyll has _ ion.
In the Calvin cycle, the reducing power from NADPH is used during:
The oxidation of PGAL during glycolysis yields _ molecules.