Unit I Flashcards
Fundamental unit of life
Cell
Diversity of Cells
Appearance and Functions
English Scientist who discovered cells while looking at a thin slice of cork.
Robert Hooke
He thought that cells only existed in plants and fungi.
Robert Hooke
He used a handmade microscope to observe pond scum
Anton van Leeuwenhoek
He stated that cells are found both in animals and plants
Anton van Leeuwenhoek
Pond scum or single celled organism
Animalcules
The reason why only few cell theory advancements were made.
Spontaneous Generation
Who disproved Spontaneous Generation
Louis Pasteur
Who discovered the nucleus
Robert Brown
Random motion of particles
Brownian Motion
Who coined the term “protoplasm” to describe the contents of the cell.
Johannes Purkinje
Nerve cells are also called as
Purkinje cell
An English Botanist who concluded that “all plant parts are made of cells’
Matthias Schleiden
German Physiologist who stated that “all animal tissues are composed of cells”
Theodor Schwann
German scientist who stated that “ every cell originate from another existing cell”
Rudolph Virchow
Who demonstrated the first evidence of cell division
Rudolph Virchow
Who is the father of Microbiology
Anton van Leeuwenhoek
The book where Robert Hooke describes his discoveries
Micrographia
What is the Latin phrase for “All cells come from pre-existing cells”
Omnis cellular e cellula
Who invented the electromicroscope
Vladimir Zworykin
What are the three cell theories
- All organisms are composed of cells
- Cells are the smallest living things
- Cells arise only from pre-existing cells.
Founders of the Cell Theory
Matthias Schleiden
Theodor Schwann
Rudolph Virchow
What are the certain structures common in cells
Genetic Material
Cytoplasm
Plasma Membrane
How many statements are added in the Modern Cell Theory
4
Can resolve structures that are 200nm apart
Light Microscope
Can resolve structures that are 0.2nm apart
Electron Microscope
Two basic types of cells
Prokaryotic cells
Eukaryotic cells
A Region of cytoplasm where prokaryotes genome/DNA is located
Nucleoid
Small extra piece of chromosome/genetic material
Plasmid
Gel like matrix of water enzymes, nutrients, wastes and gases. Location of growth, metabolism, and replication.
Cytoplasm
Bacteria’s way of storing nutrients
Granules
Separates the cell from its environment
Plasma Membrane