MICROANATOMY

INTRODUCTION TO MICROSCOPY CELL BIOLOGY

LYSOSOMES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
break down (digest) worn out cell parts, mostly in animal cells
A
cytoplasm
B
lysosomes
C
mitochondria
D
vacuoles
Explanation: 

Detailed explanation-1: -A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.

Detailed explanation-2: -Lysosomes contain portions of cytoplasmic components such as glycogen, mitochondria, or cisternae of the endoplasmic reticulum. Hydrolytic enzymes (phosphatases and proteases) provide intracellular digestion of worn-out cellular organelles and materials taken into the cell by endocytosis.

Detailed explanation-3: -Once the material is inside the cell, the lysosomes attach and release their enzymes. The enzymes break down complex molecules that can include complex sugars and proteins.

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