Intro to cells
The smallest unit of life
What is a cell?
Similar to organs
What are organelles?
The two main types of Organisms
Unicellular and multicellular
The simple cell
Prokaryotic
The protective wall that provides support and structure, giving plant cells their rigid, rectangular shape
Cell wall
Two main types of cells
What are Prokaryotic & Eukaryotic?
Only found in Eukaryotic cells
The organism completes all the cell jobs
Unicellular Organism
This cell type has multiple organelles
Eukaryotic
Both plant and animal cells have this flexible outer covering that controls what goes in and out of the cell.
What is the cell membrane?
All cell types have a nucleus (True or False)
False
These are small, membrane-bound sacs containing powerful enzymes. They break down waste, old cell parts, and even invading bacteria.
What are Lysosomes ?
A living thing made of many cells.
multicellular organism
This cell type has a cell wall
Prokaryotic
In plant cells, this organelle uses sunlight to make sugar, but animal cells must get sugar from food.
What are chloroplasts?
The three main jobs of a cell
Obtain Food/Energy: All cells need fuel to work.
Get Rid of Waste: They need to clean themselves out.
Reproduce: They need to make more of themselves to grow or heal.
Known as the “powerhouse of the cell,” this organelle breaks down food to release energy.
What are mitochondria?
The jobs of a unicellular organism
It gets food from its environment.
It gets rid of its own waste.
It can reproduce by simply dividing in two.
Prokaryotes are always single-celled, but eukaryotes can be this.
What is unicellular or multicellular?
Both plant and animal cells have this organelle that controls the cell’s activities, but only plant cells have a large central one that stores water and nutrients.
What is the vacuole?
The three main points of cell theory
All living things are made of one or more cells.
Cells are the basic unit of structure and function in living things.
All cells come from pre-existing cells.
This small organelle makes proteins for the cell and can be found floating in the cytoplasm or attached to other structures.
What are ribosomes?
What is the difference between unicellular and multicellular organisms? give examples
Some organisms are made of only one cell, like bacteria, while others are made of many cells, like humans.
Even though prokaryotic and eukaryotic cells are very different, they both have these three basic structures.
What are the cell membrane, cytoplasm, and ribosomes?
While both plant and animal cells have mitochondria, only plants can do this process because of their chloroplasts.
What is photosynthesis?