Tag: botany

Questions Related to botany

Cells were observed prior to Robert Hooke by

  1. Aristotle.

  2. Malpighi.

  3. Bauhin.

  4. Eicher.


Correct Option: B
Explanation:
  • The discovery of cells was first acknowledged by Robert Hook in 1665 and he named the individual unit as cells. Around similar times Marcello Malpighi, an Italian scientist, and doctor observed cell structure of plant leaves and named each unit as utricles. This makes Malpighi the first scientist to observe living cells.

First successful culture was obtained by

  1. Haberlandt.

  2. White.

  3. Skoog and Miller.

  4. Steward et al.


Correct Option: B
Explanation:

White was the first one to successfully attempt the technique of tissue culture. He cultured tomato roots in a nutrient media composed of vitamins. He developed the continuously growing callus from the root which had the property of totipotency.

So, B is the correct option. 

Microscope used by Leeuwenhoek, was

  1. Simple

  2. Compound

  3. Dark phase

  4. Interphase


Correct Option: A
Explanation:

The Leeuwenhoek microscope was a simple single lens device but it had greater clarity and magnification than compound microscopes of its time. Designed by a Dutchman, Antony van Leeuwenhoek, the microscope was completely handmade including the screws and rivets.

The first microscope was invented by

  1. Leeuwenhoek.

  2. Hooke.

  3. F. Janssen and Z. Janssen.

  4. Schleiden.


Correct Option: C

Study of cells in all aspects is

  1. Cytotaxonomy

  2. Cytology

  3. Cell Biology

  4. Cytochemistry


Correct Option: C
Explanation:

Cell biology is the study of structure and functions of a cell which also revolves around the concept that cell is the basic and fundamental unit of life. It also explores a detailed understanding of tissues and organisms composed of cells. It involves the study of unicellular as well as multicellular organisms, their generalised properties and highly intricate function specialised to a group of cells. So, the correct answer is option C.

Leeuwenhoek was

  1. Dutch biologist

  2. Dutch cloth merchant

  3. British naturalist

  4. British amateur scientist


Correct Option: B
Explanation:

Science had recently emerged as a profession and yet it was an amateur who became a scientific celebrity throughout Europe. It was Anton van Leeuwenhoek, a Dutch merchant without university studies, who discovered microscopic life at the end of the 17th century.

Study of cell structure under microscope is

  1. Cytology.

  2. Cell Biology.

  3. Cytochemistry.

  4. Microanatomy.


Correct Option: A
Explanation:

Cell structure consists of the whole cell with the cell membrane, nucleus, ribosomes, Golgi bodies which are dispersed in the cytoplasm of a cell. So basically these are cytoplasmic structures which are so tiny that they can only be observed under the microscope. And study of these cells (both animal and plant) structures, functions and their chemistry under the microscope is called as cytology.

The term microscope was coined by

  1. Janssen and Janssen.

  2. Faber.

  3. Robert Hooke.

  4. Leeuwenhoek.


Correct Option: B

The class room compound microscope was invented by

  1. Kepler and Galileo.

  2. Janssen and Janssen.

  3. Tolles and Abbe.

  4. Knoll and Ruska.


Correct Option: A

Which one of the following microscopes can be used for studying unstained and dividing cells?

  1. Electron microscope

  2. Phase-contrast microscope

  3. Polarising microscope

  4. All the above


Correct Option: B