Vocabulary
What are cell?
The basic structural and functional unit of all living organisms.
The discovery of cells and the development of the cell theory would have been possible without the microscope
false
Mention two types of microscope
Compound and electron microscope
What are the basic cell types?
Plasma Membrane
Organelle
Eukaryotic Cell
Nucleus
Prokaryotic Cell
All are composed of one or more cells.
living things
What is the cell theory?
It is one of the fundamental ideas of modern biology and includes the following three principles:
All living things are composed of one or more cells.
Cells are the basic structure and organization of al living organism.
Cells arise only from previously existing cell, with cells passing copies of their genetic material on to their daughter cell.
The German scientist Matthias Shleiden, while studying plants, determined they are made of cells.
true
Can the specimen be alive while using a microscope?
no
What are EUKARYOTIC CELL?
Unicellular organism with membrane bound and organelle, generally larger and more complex than a prokaryotic cell.
The original name for cells was
cellulae
What is the plasma membrane?
Flexible, selectively permeable boundary that helps control what enters the cell and leaves the cell.
About a year later, another German scientist called Teodor Shwann declared not all animals were made of cells
false
The electron microscope can magnify up to
500,000x
What are PROKARYOTIC CELL?
Are defined cells without a nucleus or other membrane-bound organelles.
is one of the fundamental ideas of modern biology
cell theory
What is a organelle?
Specialized internal cell structure that carries out specific cell functions such as proteins synthesis and energy transformation.
The Prussian physician Rudolph Virchow quoted that all cells are produced by the division of existing cells.
true
Why is the transmission electron microscope called that way?
because elctrons are transmitted through a specimen to a fluorescent screen
What is the difference between eukaryotic and prokaryotic?
Unicellular organism with membrane bound and organelle, generally larger and more complex than a prokaryotic cell.
Are defined cells without a nucleus or other membrane-bound organelles.
are defined cells without a nucleus or other membrane bound organelle
prokaryotic cell
What is the nucleus?
Center of atom; contain neutrons and protons. In eukaryotic cell, the central membrane bound organelle that manages cellular functions and contain DNA.
The electron microscope was created during WWI
False it was (created during WWII)
What does the compound light microscope consist of?
a series of glass lenses that uses visible light to produce a magnified image
Which cell include the nucleus?
Prokaryotic or Eukaryotic cell
Eukaryotic cell
Having specific function has led to ____ and more diverse organisms that can adapt better to their environment.
cell diversity