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Learning Outcomes
Learning Outcomes
Understand that animals and plants are multicellular organisms.
Draw a plant cell and label the parts.
Describe the functions of the parts of a plant cell.
Draw an animal cell and label the parts.
Describe the functions of the parts of an animal cell.
Describe the differences between animal and plant cells.
Parts of the Cell
There are a lot of parts and functions to some cells. Here are some of the main components many cells have:
Membrane - This is the outer boundary of the cell. Sort of like the skin. It allows some substances in and keeps others out.
Mitochondria - This is where the cell gets its energy. In the human body, food we have digested reacts with oxygen in the mitochondria to make energy for the cell.
Ribosomes - Ribosomes are like tiny factories that make different things the cell needs to function, like proteins.
Nucleus - The nucleus is the brains of the cell. It uses chromosomes to instruct the rest of the cell what to do next.
Cytoplasm - This is the stuff that fills up the rest of the cell. The other components of the cell float around in the cytoplasm. It's mostly water.
Lysosomes - These guys clean up the place getting rid of waste and other unwanted substances that may get into the cell.
The machines inside the cell like the nucleus, ribosomes, and lysosomes are called organelles.
Fun Facts About Cells
They were discovered by the scientist Robert Hooke.
One of the largest known cells is the ostrich egg which can weigh over three pounds.
When many cells of the same kind are together in a group, it's call tissue.
The word cell comes from the Latin word cellula, which means small compartment.
Humans actually carry more bacteria cells than human cells. Yuck!
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