EVERYDAY SCIENCE

Detailed explanation-1: -Christian de Duve, whose laboratory in Louvain discovered lysosomes in 1955 and defined peroxisomes in 1965, died at his home in Nethen, Belgium at the age of 95, on May 4, 2013.

Detailed explanation-2: -Lysosomes were discovered by the Belgian cytologist Christian René de Duve in the 1950s.

Detailed explanation-3: -They were discovered and named by Belgian biologist Christian de Duve, who eventually received the Nobel Prize in Physiology or Medicine in 1974. Lysosomes are known to contain more than 60 different enzymes, and have more than 50 membrane proteins.

Detailed explanation-4: -Lysosomes are very small cell organelles. They are found in the nucleus-bearing or eukaryotic cells. Furthermore, they are found in the cytosol of the cells. Ones that float freely inside the cells outside the nucleus.

Detailed explanation-5: -Lysosomes are found in nearly every animal-like eukaryotic cell. They are so common in animal cells because, when animal cells take in or absorb food, they need the enzymes found in lysosomes in order to digest and use the food for energy. On the other hand, lysosomes are not commonly-found in plant cells.