Question

The enzyme acid hydrolase is found in
A.Golgi body
B.Endoplasmic reticulum
C.Lysosome
D.Vacuole

Answer 1

Enzymes are called biological catalyst. Enzymes decrease the activation energy and increase the rate of reaction. These are found freely in the cytoplasm or in the membrane-bound organelle.

Complete answer: Acid hydrolase is a class of enzyme that acts in an acidic medium. These enzymes degrade any molecule using water that’s why these are called acid hydrolase.
1. Acid hydrolase enzymes are found in Lysosome. The lysosome is a single membranous cell organ.
2. Lysosome has many hydrolytic enzymes. These enzymes are also called digestive enzymes. These enzymes can degrade or digest all the kinds of macro biomolecules through hydrolysis that’s why called acid hydrolase.
3.In Lysosomes total of 50 types of digestive enzymes is found that are classified in 6 major groups on the basis of activity.
4. Acid hydrolase –
a) Nucleases –
Ribonuclease – to break RNA molecule
De-oxy Ribonuclease – to break DNA molecule
b) Phosphatase -
Acid Phosphatase – act on Phosphomono esters
Phosphodiesterase – act on Phospho diesters
c) Lipasase –
Esterasase – to break fatty acid ester molecules
Phospholipase – to break phospholipids
d)Protease –
Cathepsins – digest protein molecules
Peptidasase - break the polypeptide bond
e) Glycosidase – break polysaccharides
f) Sulphatasase – break sulfate esters
5. The enzymes stored in the Lysosome can also digest the cell. So these enzymes are separated from the cytoplasm through the membrane of Lysosome. This membrane is impermeable for these enzymes and these can be only released when this membrane breaks.
6. Enzymes of Lysosome are synthesized at RER.
Hence the correct answer is option C) Lysosome.

Note: Lysosomes are also called suicide bags because these enzymes sometimes digest their own cell when the cell membrane is ruptured.
On the membrane, labilizers or destabilizers and stabilizers are found. Labilizers like progesterone, ubiquinone, and testosterone degrade the cell membrane. Stabilizers like cholesterol, chloroquine, and cortisol provide stability to the membrane.