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Questions and Answers
What is the main function of peroxisomes in plants found in leaves?
What is the main function of peroxisomes in plants found in leaves?
- Break down fatty acids into acetyl CoA
- Convert stored fatty acids in seeds into sugars
- Play a role in photorespiration by using up O2 and liberating CO2 (correct)
- Catalyze the conversion of fats into sugars using the glyoxylate cycle
What distinguishes glyoxysomes from regular peroxisomes in plants?
What distinguishes glyoxysomes from regular peroxisomes in plants?
- Their role in converting lipids into sugars during seed germination (correct)
- The presence of rubisco enzyme
- Their ability to store lipids
- The absence of the glyoxylate cycle
What is the significance of the glyoxylate cycle in plants?
What is the significance of the glyoxylate cycle in plants?
- It allows for the breakdown of glucose into succinic acid
- It catalyzes the breakdown of peroxisomes
- It converts acetyl CoA into fatty acids
- It enables the conversion of stored lipids into sugars for growth (correct)
Why are animals unable to convert fatty acids into carbohydrates like plants do?
Why are animals unable to convert fatty acids into carbohydrates like plants do?
What is the primary function of rubisco enzyme in plant metabolism?
What is the primary function of rubisco enzyme in plant metabolism?
In what process does rubisco sometimes add O2 instead of CO2?
In what process does rubisco sometimes add O2 instead of CO2?
What is a major function of the oxidative reactions carried out in peroxisomes?
What is a major function of the oxidative reactions carried out in peroxisomes?
In which cellular component are cholesterol and dolichol synthesized in animal cells?
In which cellular component are cholesterol and dolichol synthesized in animal cells?
Where are plasmalogens important membrane components found, particularly in the body?
Where are plasmalogens important membrane components found, particularly in the body?
What is a family of phospholipids in which one of the hydrocarbon chains is joined to glycerol by an ether bond?
What is a family of phospholipids in which one of the hydrocarbon chains is joined to glycerol by an ether bond?
What is the process by which fatty acid molecules are shortened sequentially by blocks of two carbon atoms at a time in peroxisomes?
What is the process by which fatty acid molecules are shortened sequentially by blocks of two carbon atoms at a time in peroxisomes?
Which cells exclusively carry out beta oxidation in peroxisomes rather than mitochondria?
Which cells exclusively carry out beta oxidation in peroxisomes rather than mitochondria?