Lysosomes Flashcards
Where are lysosomes most commonly found?
Most commonly found in animal cells but less common in plant cells.
What is the shape and structure of lysosomes?
Small, spherical-shaped similar to vesicle shape
What type of environment do lysosomes require to function effectively?
They work best in acidic conditions with a pH of around 5.0.
Where are the enzymes inside lysosomes synthesized?
The enzymes are synthesized in the rough endoplasmic reticulum (ER).
Why does the lysosome have a lipid bilayer membrane?
To separate its acidic internal environment from the rest of the cell. This bilayer is similar to vesicles
What is the primary function of lysosomes?
They play a key role in intracellular digestion by breaking down macromolecules such as carbohydrates, lipids, proteins, nucleic acids
What else do lysosomes break down?
They also break down the cell’s waste
What is autophagy?
A process where lysosomes break down and recycle damaged organelles (“self-eating”).
What is the role of lysosomes in programmed cell death (Apoptosis)?
Lysosomes release enzymes into the cytoplasm to control and execute the cell death process known as apoptosis.
Why is apoptosis important?
It is crucial for development and for eliminating damaged or dysfunctional cells.
How do lysosomes function during digestion?
They only function when fused with the material they are breaking down.
