Questions of the Day

• Eukaryotic or Prokaryotic?

Prokaryotic or Eukaryotic?

Prokaryotic or Eukaryotic?

Prokaryote or Eukaryote?

Goals for the Day

1. Learn the basic functions of Eukaryotic cell organelles

2. Be able to separate organelles as belonging to plant cells, animal cells, or both.

3. Be able to separate organelles as belonging to Prokaryotes or Eukaryotes

QuestionWhat cell organelles (parts of a cell) have you

heard of before? List as many as you can think of.

Cell Organelles

• Organelles – Organs for cells

• Nucleus

• Controls all cell activities• Contains DNA

Eukaryotic Cells

Eukaryotic cells have:• A nucleus which contains the cell’s DNA• Other internal compartments called

organelles.

Nucleus of a Cell

The Nucleus, continued

Ribosomes and the Endoplasmic Reticulum

• Endoplasmic Reticulum (ER)• Transportation• Two kinds: • Rough and Smooth• Rough has ribosomes- makes/transports

proteins• Smooth makes/transports lipids

Endoplasmic Reticulum

The ER moves proteins and other substances within eukaryotic cells.

Golgi bodies Storage and Packaging

The UPS of the cell

Golgi bodies

Lysosome

• Lysosomes- small, spherical organelles that contain the cell’s digestive enzymes

• Function: Digestion & Recycling (The garbage man of the cell)

Structures of Plant Cells

Plants have three unique structures that are not found in animal cells:

• Cell Wall

• Chloroplasts

• Central Vacuole

Structures of Plant Cells

• Cell Wall –surrounds the cell membrane of plant cells, and is made of proteins and carbohydrates.

Functions of the Cell Wall:• helps support and maintain the shape of the cell • protects the cell from damage • connects the cell with adjacent cells

Structures of Plant Cells

• Chloroplasts convert light energy into USABLE energy

Mitochondria (Powerhouse of the cell) Convert sugar into usable energy (ATP)

Where in your body would you need a lot of mitochondria?

Mitochondria

Mitochondria, continued

Mitochondria have an inner and an outer membrane.

Mitochondria & Chloroplasts

• Unique features of the mitochondria & chloroplast:

• Both are energy-related organelles

• Have two membranes

• Have their own DNA

• Reproduce separately from the cell

Structures of Plant Cells

Central Vacuole:

• Takes over the function of the Lysosome, which is not found in plant cells!!!

• Why might plants want to retain toxins and wastes inside the cell???

Comparing Plant and Animal Cells

Organelle Billboard

• Imagine you are in charge of marketing for a particular cell organelle. You will make a billboard that represents the shape of your organelle. On the back side of the organelle you will need to come up with a marketing slogan that represents the function of the organelle, and finally a simile about what your cell organelle is like, this should also have something to do with its function.

Organelle Marketing

• Once you have completed your organelle, slogan, and simile, determine what organism groups your organelle would be found in. • prokaryotes, eukaryotes, both• Plants, animals, both

You will need to include this information in your presentation

• You may earn extra points by developing a slogan and simile for the cell membrane and cell wall

1. Nucleus2. Cell Wall3. Cell Membrane4. Endoplasmic reticulum5. Central Vacuole6. Chloroplast7. Golgi Bodies8. Ribosomes9. Mitochondria10.Marker Proteins11.Channel/Transport Proteins12.Receptor Proteins

• Extra Credit: Lysosome