Tag: cell and cellular organization

Questions Related to cell and cellular organization

A Dutch Scientist A.V. Leeuwenhoek discovered bacteria for first time in

  1. Rain water

  2. Soil

  3. Air

  4. Garden soil


Correct Option: A
Explanation:

Antony Van Leeuwenhoek first discovered bacteria in pond, which is filled with dirty rain water, with a microscope made by him.

Robert Hooke

  1. Lived in the 19$^{th}$ century.

  2. Observed cork cells.

  3. Invented lens.

  4. Constructed a microscope.


Correct Option: B
Explanation:

Robert Hooke discovered cell in the year 1665. He observed cork cell in the bark of Spanish oak tree under a simple microscope and was able to see the empty structures surrounded by walls and named it a cell. He elucidated his observation in a book called "Micrographia".

Who discovered and coined the term 'cell'?

  1. Grew

  2. Brown

  3. Robert Hooke

  4. Darwin


Correct Option: C
Explanation:

The cell was discovered by Robert Hooke in 1665 when he saw an empty box like compartments in a very thin slice of cork under his microscope. He wrote a book 'Micrographia' and coined the term cellulae which was later changed into the cell.

Antony Van Leeuwenhoek discovered bacteria. He belongs to which of the following country?

  1. France

  2. Swedan

  3. Holland

  4. United Kingdom


Correct Option: C
Explanation:

Antony Van Leeuwenhoek was a tradesman of Holland. He made microscope and discovered bacteria.

The nucleus of cell was discovered by

  1. Robert Brown

  2. Schleiden

  3. Robert Hooke

  4. Rudolf Virchow


Correct Option: A
Explanation:

Robert Brown discovered an opaque area in many plant cells when observed under the microscope. He called it the nucleus.

Robert Hooke used the term cell in the year

  1. 1650

  2. 1665

  3. 1865

  4. 1960


Correct Option: B
Explanation:

The cell was discovered by Robert Hooke in the year 1665 when he saw an empty box like compartments in a very thin slice of cork under his microscope and named it cellulae which later changed into the cell.

The credit of applying a microscope for the first time for the study of biological object goes to

  1. J.B. Lamarck

  2. Robert Hooke

  3. R.J. H. Dutrochet

  4. Rudolf Virchow


Correct Option: B
Explanation:

Robert Hooke observed section of a cork  below a microscope created or structured by him

So, the correct answer is 'Robert Hooke'

The most advanced form of microscope is 

  1. Compound microscope

  2. Simple microscope

  3. Electron microscope

  4. None of these


Correct Option: C

Who invented the first compound microscope?

  1. Robert Hook

  2. Robert Koch

  3. Leeuwenhoek

  4. Z. Janssen


Correct Option: D
Explanation:

Zacharias Janssen was the first scientist who is responsible for the invention of the compound microscope. The scientist worked and manufactured the different type of lenses. He made a cylindrical tube-like structure and arranged many different lenses in different orientations within the tube. This led to the formation of the compound microscope which was also known as the telescope. 

Thus, the correct answer is option D. 

Who had a great contribution in the field of microbiology?

  1. Leeuwenhoek

  2. Pasteur

  3. Spallanzani

  4. All of the above


Correct Option: D