List the function of each organelle

• GREEN TEST• Nucleus

• Endoplasmic reticulum

• Cell membrane

• RED TEST• mitochondria

• Vacuole

• Cell wall

Things to find out about cells

1. What shape do most cells have?

2. How many nuclear membrane layers? Why?

3. What produces energy in a cell?

4. How does water get into a cell?

5. How does CO2 get out of a cell?

6. What does a nucleus do?

7. What does the endoplasmic reticulum do? Look like?

White Board Answers

• Group 1: Questions 1 & 6

• Group 2: Questions 2 & 4

• Group 3: Questions 3 & 2

• Group 4: Questions 4 & 1

• Group 5: Questions 5 & 3

• Group 6: Questions 6 & 5

Cell history

• Leeuenhoek

• Hooke

• Schwann

• Schleidan

Contempories; 1730’s

German sci; credited w/ the idea of cell theory; the beg of the end of spontaneous generation

Beg Microscopes

http://en.wikipedia.org/wiki/File:Leeuwenhoek_Microscope.png http://chem.aellumis.org/wp-content/uploads/2013/0

8/hookes_microscope.jpg

Two Types of Cells

• Prokaryotic• “simple”• no nucleus or

membrane bound organelles

• most have cell wall• All are bacteria of

some type

• Eukaryotic• Have nucleus* and

membrane bound organelles

• More diverse• Only plant and fungi

have cell walls

Generalized Bacteria Cell

List of Organelles w/ MembranesCell Membrane:

Nucleus:

nucleolus

Mitochondria:

Chloroplast:

Vacuole:

Cell membrane

Cytomembrane Organelles

• Endoplasmic Reticulum (ER):– rough– smooth

• Golgi Body:

• Lysosomes/peroxisomes:

Generalized cell for cytomembrane system

Other Organelles

• Ribosomes

• Centrioles

• Cytoskeleton– microtubules– microfilaments

Other Organelles, cont

• Cytoplasm/cytosol

• Cell wall– slime capsule

• Cilia/flagella

Organelle Assignment

• 5 Cinquain poems

• Noun

• 2 adjectives

• 3 verbs to describe organelle

• 4 word phrase

• 1 noun synonym

How substances enter cell (ch 5)

• W/out nrg = Passive• Osmosis:

• Diffusion:

• Facilitated Diffusion:

• With energy• Active transport:

• Bulk transport:– endocytosis

– exocytosis

Cell f(x)s--passive

D:\unit1\chap05\031\031p2.htm