Cell organelles
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Cell Organelles PowerPoint PPT Presentation

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Cell Organelles. An organelle is a membrane-bound structure that carries out specific activities for the cell. Video: http://www.youtube.com/watch?v=o1GQyciJaTA Song: http://www.youtube.com/watch?v=-zafJKbMPA8. COMMON CELL TRAITS.

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Cell Organelles

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Cell Organelles

An organelle is a membrane-bound structure that carries out specific activities for the cell.

Video: http://www.youtube.com/watch?v=o1GQyciJaTA

Song: http://www.youtube.com/watch?v=-zafJKbMPA8


  • A cell is the smallest unit that is capable of performing life functions.


  • The size & shape of a cell relates to its function. (job it does)

PROKARYOTIC CELLS(proh KAYR ee yah tihk)

  • cells without a nucleus

  • EX: Eubacteria and Archaebacteria

    pond scum

EUKARYOTIC CELLS(yew KAYR ee yah tihk)

  • cells with a nucleus

  • EX: animals, plants, fungi and protists

  • Prokaryotic vs. Eucaryotic interactive explanation

  • http://www.pisgahscience.com/holmescc/module4/pro_eukar.swf


  • Organelle = “little organ”

  • An organelle is a membrane-bound structure that carries out specific activities for the cell.

  • Found only inside eukaryotic cells

CELL WALL(Plant Cell Only)

  • Protects and supports

  • Gives shape

  • Stiff covering located outside of the cell membrane

  • Allows materials to pass through

  • A cell wall is found in plants, algae, fungi, & most bacteria cells.


  • Outer covering, protective layer around ALL cells.

  • For cells with cell walls, the cell membrane is inside the cell wall.

  • Allows food, oxygen, & water into the cell & waste products out of the cell.


  • Not an organelle

  • Cyto=cell

  • Translucent, grayish, jellylike

  • All organelles reside (live and float around in) the cytoplasm

  • Gelatin-like inside cell membrane

  • Constantly flows

  • Made mostly of water


  • Directs all cell activities

  • Contains instructions for everything the cell does

  • These instructions are found on a hereditary material called DNA

  • Usually the largest organelle

  • Easiest organelle to see under a microscope

CHLOROPLAST(Plant Cell Only)

  • Contains chlorophyll

  • Makes plants green

  • Uses light energy to make ATP & sugars

  • Photosynthesis takes place here


  • A green chemicalthat gives leaves & stems their color

  • Captures sunlight energy that is used to produce food called glucose

  • Glucose is a type of sugar


  • Organelles that release energy from food

  • This energy is released by breaking down food into carbon dioxide

  • A.k.a. the powerhouse b/c they release energy from food


  • Make proteins

  • Float freely or attached to the endoplasmic reticulum (ER)

  • Ribosomes are made in the nucleus


  • A.k.a. “ER”

  • A series of folded membranes that move materials (proteins) around in a cell

  • Like a conveyor belt

  • Smooth ER – ribosomes not attached to ER

  • Rough ER – ribosomes attached to ER


  • Stack of flat, pancake-shaped discs

  • Modify, sort, package, and store carbohydrates and proteins until they are needed.

  • Makes lysosomes


  • Breaks down materials for digestion

  • Contains special enzymes for digestion in the cell

  • Garbage disposal of the cell


  • Most plant cells have one large one

  • Filled w/ fluid

  • Temporary storage spaces

  • Stores food, water, waste

  • Song: http://www.youtube.com/watch?v=rABKB5aS2Zg

Plant and Animal Cells both have:

  • Cell Membrane

  • Nucleus

  • Cytoplasm with organelles

Plant and Animal Cell Differences


    • Has a cell wall which is thicker and tougher than a cell membrane.

    • Contains chloroplasts which contain chlorophyll and allows the plant to make its own food.


    • Does not contain a cell wall.

    • Does not contain chloroplasts.

  • Inside a Cell Tour: I like how you watch them change the cell from a animal cell to a plant cell. The difference between the two is made very obvious.

  • http://learn.genetics.utah.edu/content/begin/cells/insideacell/

Comparing a Factory to a Cell

1- Nucleus

2- Chromosomes

3- Mitochondria

4- Ribosomes

5- Chloroplasts

6- Vacuoles

8- Cell Membrane

7- ER

Quick Review

  • Which organelle is the control center of the cell?


  • Which organelle holds the cell together?

    Cell membrane

  • Which organelles are not found in animal cells?

    Cell wall, central vacuole, chloroplasts

  • Which organelle helps plant cells make food?


  • What does E.R. stand for?

    Endoplasmic reticulum


a. _________

c. ___________

b. ___________

d. ____________


a. Nucleus

c. Golgi body

b. Chloroplast

d. Mitochondria

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