http://www.cellsalive.com/toc.htm

 

How Big is a Cell?

 

  1. How do the the following cells compare in size? Explain in some detail the relative size of a pollen grain, lymphocyte, red blood cell, yeast, E. coli, Staphylococcus, and Rhinovirus (colds)

 

 

 

 

 

 

 

 

  1. What is the function of the following? (See plant and animal view) http://www.cellsalive.com/cells/3dcell.htm

 

Nucleus

 

Nucleolus

 

Endoplasmic Reticulum (ER)

 

Centrosome

 

Cytoskeleton

 

Golgi

 

Mitochondrion

 

Lysosome

 

Peroxisome

 

Vacuole

 

Cell Membrane

 

Cytosol

 

Cell Wall

 

Chloroplast

 

 

 

 

 

 

 

  1. Click on the bacteria cell http://www.cellsalive.com/cells/bactcell.htm

What is  the function of these cell parts?

 

 

  1. Click on the Cell Quiz. Give it a try. How did you do?

 

 

  1. Check out the section “The Cytotoxic T Lymphocyte” http://www.cellsalive.com/ctl.htm. What is this cell doing in this process?

 

 

  1. Check out this section. Phagocytosis http://www.cellsalive.com/mac.htm

What cell in involved in this section and what specifically is it doing? Is this active or passive transport?

 

  1. Apoptosis: Dance of Death http://www.cellsalive.com/apop.htm  Describe what is going on in this section .

 

 

 

What cell part is a major component of this process?

 

 

 

  1. How Bacteria Swim and Tumble http://www.cellsalive.com/animabug.htm What cell structure is used in this process?

 

 

 

  1. Beware of Dust Bunnies http://www.cellsalive.com/mite.htm

What is this site about and what do you think about that?

 

 

Organelle

 

 

Function

Location

Ribosome

 

 

 

 

 

 

- Digestive for proteins, lipids, and carbohydrates
- Transports undigested material to cell membrane for removal
- Vary in shape depending on process being carried out
- Cell breaks down if it explodes

 

Golgi bodies

 

 

 

 

 

Chromosomes

 

 

 

 

 

 

 

- Tubular network fused to nuclear membrane
- Goes through cytoplasm onto cell membrane
- Stores, separates, and serves as cell's transport system
- Smooth type: lacks ribosomes
- Rough type ribosomes embedded in surface

 

Vacuoles

- Most commonly found in plant cells
- Controls turgity
- Extracellular structure surrounding plasma membrane
- Primary cell wall: extremely elastic
- Secondary cell wall: forms around primary cell wall after growth is complete

 

 

 

 

Organelle

Function

Location

Microtubules and microfilaments

 

 

 


- Outer membrane of cell that controls cellular traffic
- Contains proteins (left, gray) that span through the membrane and allow passage of materials
- Proteins are surrounded by a phospholipid bi-layer.

 

 

- A plastid usually found in plant cells
- Contain green chlorophyll where photosynthesis takes place

 

Nucleolus

 

 

 

 

 

 

 

 

 

Try This!

(Only after completing all of the above activities)