EVERYDAY SCIENCE

SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is an enzyme filled organelle that breaks down waste in the cell?
A
lysosomes
B
chloroplast
C
mitochondria
D
Golgi apparatus
Explanation: 

Detailed explanation-1: -The digestive enzymes of lysosomes breakdown unwanted (waste) substances and worn out cell parts. Hence, they can be considered as the waste disposal system of the cell.

Detailed explanation-2: -Lysosomes have powerful enzymes and acids to digest and recycle cell materials. Credit: Judith Stoffer. Proteins aren’t the only type of cellular waste. Cells also have to recycle compartments called organelles when they become old and worn out.

Detailed explanation-3: -Lysosomes are membrane-bound organelles found in every eukaryotic cell. They are widely known as terminal catabolic stations that rid cells of waste products and scavenge metabolic building blocks that sustain essential biosynthetic reactions during starvation.

Detailed explanation-4: -Lysosomes are membrane-enclosed compartments filled with hydrolytic enzymes that are used for the controlled intracellular digestion of macromolecules. They contain about 40 types of hydrolytic enzymes, including proteases, nucleases, glycosidases, lipases, phospholipases, phosphatases, and sulfatases.

Detailed explanation-5: -In this regard, the lysosomes recycle the cell’s organic material in a process known as autophagy. Lysosomes break down cellular waste products, fats, carbohydrates, proteins, and other macromolecules into simple compounds, which are then transferred back into the cytoplasm as new cell-building materials.

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