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Questions and Answers
Which cellular components can lysosomes break down?
Which cellular components can lysosomes break down?
- Proteins, lipids, and carbohydrates (correct)
- Nucleic acids, lipids, and carbohydrates
- Proteins, nucleic acids, and lipids
- Proteins, nucleic acids, and carbohydrates
What happens to lysosomes when cells are deprived of nutrients?
What happens to lysosomes when cells are deprived of nutrients?
- Lysosomes increase in size
- Lysosomes stop functioning
- Lysosomes break down cellular components to provide the cell with energy (correct)
- Lysosomes release their contents into the cytoplasm
What did De Duve and his colleagues observe about lysosomes?
What did De Duve and his colleagues observe about lysosomes?
- Lysosomes were only capable of breaking down proteins
- Lysosomes were only capable of breaking down carbohydrates
- Lysosomes were capable of breaking down a variety of cellular components (correct)
- Lysosomes were only capable of breaking down lipids
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Study Notes
Lysosome Functions
- Lysosomes can break down and digest cellular waste and debris, including damaged cellular organelles, such as mitochondria and proteins, as well as foreign substances, like bacteria and viruses.
Response to Nutrient Deprivation
- When cells are deprived of nutrients, lysosomes can break down and recycle cellular components to provide the cell with necessary energy and nutrients.
Discovery of Lysosomes
- De Duve and his colleagues observed that lysosomes contain a variety of digestive enzymes, which led to the discovery of lysosomes as a distinct cellular component.
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