CELLS ALIVE!
What are cells?
The microscopic building blocks of life. All organisms are made of cells.
What is a cell membrane?
It is a thin layer around the cell that controls what comes in and out.
What does the ancient word "cella" mean?
Tiny room.
Name 5 different kinds of cells found in humans.
What does semi-permeable mean?
It means substances like water, sugar and minerals can pass through, but other substance cannot pass through.
What is the job of the cell wall?
To give the plant cell structure and shape and an outer layer of protection.
What another name for the cell membrane?
Plasma membrane.
Give an example of a prokaryotic organism.
Bacteria - because it does NOT have a nucleus or membrane-bound organelles
TRUE OR FALSE: The cell membrane helps to maintain pressure inside the cell.
TRUE!
What is the name of the process in which plants use sunlight to make energy (food).
photosynthesis
Any animal cells, plant cells, or human cells.
In plant cells, there is an additional layer of protection surrounding the cell membrane. What is this called?
Cell wall.
What is another name for the golgi body?
The golgi apparatus.
What is the difference between Prokaryotes and Eukaryotes? Name two differences.
Prokaryotes are smaller and simpler. They do not have a nucleus.
Eukaryotes are more complex and evolved from prokaryotes. Eukaryotes have a nucleus and organelles.
Both animal cells and plant cells have a cell membrane. So why are plant cells squarish and why are animal cells round?
Plant cells have a rigid cell wall that is a square shape. This allows the cells to stack on top of one another and cause the plant stem to grow strong and upwards towards the light.
Animal cells are roundish which allows them to move. For example, blood cells are roundish because they need to travel through veins and arteries which are in the shape of tubes.
What is the process called that takes place inside the mitochondria? The mitochondria makes energy for the cell through a process called ____.
Cellular Respiration!