Plant cells

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Plant cells Animal cells

• By Greg Kozmon

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Introduction

• An introduction to plant and animal cells
• The class will explore the differences between
  the two types of cells

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Overview

• In the same way there are different kinds of
  cells inside you, different organisms have
  different types of cells. Trees have different
  cells than you and so do monkeys. Each of those
  cells is different in some way.

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Vocabulary

• Cell Membrane The purpose of the cell membrane
  is to hold the cell together. It keeps all of the
  pieces, like the organelles and the CYTOPLASM,
  inside.
• Cell Wall Cell walls help the plant maintain its
  shape. Walls also help the plant keep its
  structure consistent
• Nucleus The NUCLEUS is like the brain of the
  cell. If you take the nucleus out of a cell it
  dies. It is the thing that tells every part of
  the cell what to do. It even tells the cell when
  to divide.
• Endoplasmic Reticulum The purpose of the ER is
  to collect proteins and create something called
  steroids and store ions
• Ribosomes Ribosomes are the protein builders of
  the cell. When they build proteins, scientists
  say that they SYNTHESIZE the proteins. Ribosomes
  are found either floating around in the CYTOPLASM
  or attached to the Endoplasmic Reticulum (ER).
  The floating ribosomes synthesize proteins that
  will be used inside the cell. The ribosomes
  attached to the ER make proteins that will be
  used inside the cell AND sent outside the cell.
  
• Vacuoles Vacuoles are bubbles that float in the
  cell. Those bubbles store the different molecules
  a cell needs to survive. Some contain food and
  others hold oil. There are even vacuoles that
  hold onto waste products.

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Vocabulary

• Ribosomes Ribosomes are the protein builders of
  the cell. When they build proteins, scientists
  say that they SYNTHESIZE the proteins. Ribosomes
  are found either floating around in the CYTOPLASM
  or attached to the Endoplasmic Reticulum (ER).
  The floating ribosomes synthesize proteins that
  will be used inside the cell. The ribosomes
  attached to the ER make proteins that will be
  used inside the cell AND sent outside the cell.
• Vacuoles Vacuoles are bubbles that float in the
  cell. Those bubbles store the different molecules
  a cell needs to survive. Some contain food and
  others hold oil. There are even vacuoles that
  hold onto waste products.

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Vocabulary

• Mitochondria The big thing you need to remember
  about MITOCHONDRIA is that they are the cell's
  little powerhouses. They are the thing that lets
  cells survive. Their whole purpose is to break
  down food molecules so that the cell has the
  energy to live.
• Chloroplasts Chloroplasts are very much like
  mitochondria. The big difference is that instead
  of taking food and breaking it down into energy,
  chloroplasts take energy from the sun and create
  food.

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Vocabulary

• Lysosome Lysosomes combine with the food taken
  in by the cell. The enzymes in the lysosome bond
  to the food and start to digest it.

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Plant cells

• Plant cells have different structures than animal
  cells
• . Plant cells have something called a CELL WALL
  while animals do not.
• Plant cells have an organelle called a
  CHLOROPLAST that takes energy from the sun and
  converts it into sugars.
• Does your body make sugar from the sun or do you
  get it from food?

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Animal Cells

• Animal cells organize the body. You have brain
  cells, stomach cells, bone cells, and many other
  types of cells. Each is different from the
  others.
• Nerve cells conduct electrical impulses through
  the body. There are cells in your intestine that
  absorb nutrients from the food you eat. Stomach
  cells secrete an acid to digest your food
• Do you think that your skin cells can absorb the
  nutrients from your lunch? Why not?

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Summary

• During this presentation we learned about some of
  the basic differences between animal cells and
  plant cells.
• Cells have common pieces, but each cell has
  different parts depending on what it does.

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Where to Get More Information

• http//www.kapili.com/c/cell.html
• http//www.thinkquest.org/library/lib/site_sum_out
  side.html?tnameC004535urlC004535/
• http//mindquest.net/biology/cell-biology/cell-bio
  logy.html