answer the following given above
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Answer:
1. Cell is the basic membrane-bound unit that contains all the fundamental molecules of life and of which all living beings are of composed.
2. Two Dutch spectacle-markers and father and son team, Hans and Zacharias Janssen create the first microscope.
3. The cell was first discovered by Robert Hooke in 1665.
4. Zacharias Janssen was the scientist who gave compound microscope.
Ans.1 Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells have many parts, each with a different function.
Ans.2 Ernst Ruska Max knoll and Bodo von Borries
Ans.3 The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.
Ans.4 A Dutch father-son team named Hans and Zacharias Janssen invented the first so-called compound microscope in the late 16th century when they discovered that, if they put a lens at the top and bottom of a tube and looked through it, objects on the other end became magnified.
Ans.5
- a) Microscope: A microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye.
- b) Antony van Leeuwenhoek: Anton von Luenhook was a Dutch biologist. He is considered to be the father of microbiology. He had six children, five of whom were his first wife. Was born from His microscope had revolutionized the world of biology.
- c) Robert Hooke: Robert Hooke, F.R.S. Was an English natural philosopher. He played an important role in the scientific revolution by contributing his experimental and theoretical works.