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Animal Cell Diagram - Plant Cell Diagram and Lesson Plans


Cells are the building blocks of all living things. The term ‘cell’ was first coined by Robert Hooke in the 16th century when he was studying different objects using the newly-invented microscopes. In modern times, with more powerful microscopes, scientists have been able to look at the different parts that make up the cells of living things. Both plant and animal cells play crucial roles in their respective organisms. The following activities are designed to help students understand the difference between and functions of both plant and animal cells.

Student Activities for Basic Cells Include:




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Teacher Background on Basic Cells

All living things are made of cells. Some living organisms are made of only one cell, such as salmonella, and these are known as unicellular organisms. Other more complex organisms are made of many different types of cells; these organisms are known as multicellular. Grass, snakes, and humans are all examples of multicellular organisms. Cells are made of many different components called organelles. Animal and plant cells have many organelles in common, but some organelles also have features that are different in plant cells.


Organelles in Both Animal and Plant Cells


The nucleus is the part of the cell that contains the genetic information. The genetic information is stored in a chemical known as DNA (Deoxyribonucleic Acid). DNA has a double helix shape similar to a spiraling ladder. Cells that have a nucleus are known as eukaryotic cells.


The cytoplasm is where most chemical reactions take place. It is made mostly of cytosol, a watery substance, and is the part of the cell that is surrounded by the membrane that isn’t the nucleus.


The cell membrane (also known as the plasma membrane) is a semi-permeable skin that controls what enters and exits the cell. It is composed of a thin layer of lipids.


Mitochondria are often called the powerhouse of the cell. They are where most respiration reactions occur. Respiration is a chemical reaction that is used by living things to release energy from glucose. Aerobic respiration is respiration that uses oxygen. Anaerobic respiration occurs without oxygen.


Ribosomes are organelles in the cell where protein synthesis occurs. Ribosomes link together amino acids to create protein molecules as specified by a chemical known as "messenger RNA".


Organelles Found Only in Plant Cells

The cell wall composes the exterior of the plant cell. It is made of cellulose and strengthens the cell.


Chloroplasts are where photosynthesis takes place. They contain chlorophyll, which is what gives plants their green color. Plants are autotrophic, meaning they make their own food. In order to do this, plants absorb sunlight and use it to react carbon dioxide with water to produce glucose and oxygen.
(6CO2 + 6H2O → C6H12O6 + 6O2)


The vacuole is the part of the cell where cell sap is stored. This creates an outward hydro-static pressure that keeps the cell rigid. A vacuole is present in all plant and fungus cells, and they can also be found in some animal cells.


Note that there are more organelles normally found in both plant and animal cells. These have been omitted to simplify teaching. If you want to push your more advanced students, include additional or more complicated organelles.


Also see our Specialized Cells lesson plan for a look at different cell types.


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