LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The part of the cell that acts like a garbage can or disposal and digest old organelles is the
A
ribosomes
B
lysosomes
C
mitachondria
D
cell membrane
Explanation: 

Detailed explanation-1: -Lysosomes function as the digestive system of the cell, serving both to degrade material taken up from outside the cell and to digest obsolete components of the cell itself.

Detailed explanation-2: -Garbage Disposal The barrel-shaped proteasome disassembles damaged or unwanted proteins, breaking them into bits that the cell can re-use to make new proteins. In this way, the proteasome is just as much a recycling plant as it is a garbage disposal. How does the cell know which proteins to keep and which to trash?

Detailed explanation-3: -Lysosomes and peroxisomes are often referred to as the garbage disposal system of a cell. Both organelles are somewhat spherical, bound by a single membrane, and rich in digestive enzymes, naturally occurring proteins that speed up biochemical processes.

Detailed explanation-4: -Lysosomes are a kind of waste disposal system of a cell. They help to keep the cell clean by digesting any foreign material as well as worn-out cell organelles. Lysosomes contain powerful digestive enzymes capable of breaking down all organic material, so they are called digestive bags of the cell.

Detailed explanation-5: -It contains hydrolytic enzymes that break down waste material and cellular debris. They can be described as the stomach of the cell. Lysosomes digest excess or worn-out organelles, food particles and engulfed viruses or bacteria. Thus, they are called as disposal system of the cell.

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