Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

Multiple choice botany cell and cellular organization cell theory microscope cell and its discovery

Who discovered and coined the term 'cell'?

  1. Grew

  2. Brown

  3. Robert Hooke

  4. Darwin
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

Multiple choice botany cell and cellular organization cell theory microscope cell and its discovery

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
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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

So, the correct answer is 'Robert Hooke'

Multiple choice botany cell and cellular organization cell theory microscope cell and its discovery

The most advanced form of microscope is 

  1. Compound microscope

  2. Simple microscope

  3. Electron microscope

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An electron microscope uses a beam of accelerated electrons as a source of illumination, allowing for much higher magnification and resolution than light-based microscopes.

Multiple choice botany cell and cellular organization cell theory microscope cell and its discovery

Who invented the first compound microscope?

  1. Robert Hook

  2. Robert Koch

  3. Leeuwenhoek

  4. Z. Janssen
Reveal answer Fill a bubble to check yourself
D Correct answer
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. 

Multiple choice botany cell and cellular organization cell theory microscope cell and its discovery

Who had a great contribution in the field of microbiology?

  1. Leeuwenhoek

  2. Pasteur

  3. Spallanzani

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Leeuwenhoek, Pasteur, and Spallanzani all made foundational contributions to microbiology, ranging from the discovery of microorganisms to the debunking of spontaneous generation.

Multiple choice botany cell and cellular organization cell theory microscope cell and its discovery

Leeuwenhoek was the first who observed .......... under the microscope.

  1. Fungi

  2. Virus

  3. Bacteria

  4. Plant cell wall
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Antony Von Leeuwenhoek was the first person to discover bacteria in 1670.It happened because he was trying to look at pond water with his magnifying lens and was able to see many large bacteria. He used a compound microscope.He described cells in a drop of pond water using a microscope made by him. He was the first person to observe bacteria and protozoa. By observing the movement of bacteria or protozoa he named them animalcules. Therefore, the correct answer is option C.
Multiple choice botany cell and cellular organization cell theory microscope cell and its discovery

9X was the maximum magnification of .......... microscope.

  1. First

  2. Second

  3. Advanced

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A- A microscope helps in magnifying small objects. Zacharias Jansen and his father Hans created the first microscope in 1595. This microscope was made up of a long brass tube with two lenses. 9X was the maximum magnification of this microscope. Magnification helps in viewing an object by making it larger.