About the Cell
The cell was discovered until 1600 for this reason:
The cell was discovered in 1600 thanks to the invention of electronic microscope.
This surrounds the cell. A protective layer that controls materials moving into and out of it.
The cell membrane
It’s the gelatinous liquid that fills the inside of a cell.
The cytoplasm
This type of cell is found in complex, multicellular organisms.
Eukaryotic cells
These are the 2 basic types of cells:
prokaryote and eukaryote
It is the smallest functional and structural unit of all living organisms.
The cell
Part of the cell that contains DNA
the nucleus
Give an example of an organism that contain prokaryotic cells.
support
Tell whether the follwing statement is true or false:
- First cells appeared on Earth around a thousand years ago.
False ( 4 million years ago)
This type of cells don´t have a nucleus:
prokaryote cells
It is an organism made up of one cell
unicellular organism
Different structures inside the cell that have different tasks or functions to help living organisms.
Organelles
The organelle where cellular respiration occurs. Also named the powerhouse of the cell.
Mitochondria
In the plant cell this surrounds the cell and provides support and protection.
cell wall
In prokaryotic cells, which organelle contains the DNA?
In the nucleoid and in the cytoplasm
Tell whether the following statement is true or false:
- Prokaryotic cells can be unicellular or multicellular.
False
This part of the cell packages, stores and transports molecules in the cell.
Golgi Apparatus
What is the main difference between prokariotic and eukaryotic cells?
Prokaryotic cells don´t have a nucleus but Eukaryotic cells do.
Tell whether the follwing statement is true or false: the word cell comes from a Latin word that means small bubble
False
Who was the scientist that discovered the cell?
Robert Hooke
Tell whether the follwing statement is true or false:
- Only plant cells have cell walls.
True
Organelle responsible of turning the solar energy into carbon dioxide.
Chloroplasts
In this type of cell we can find circular DNA.
Prokaryotic cell
Name the biggest cell that can be observed by the human naked eye.
Human egg (ovum)
Onion cells are prokaryotic or eukaryotic cells?
Eukaryotic