World Builders  --   Microbiology Study Questions
Unit 4    Microbiology:   Life Begins
Here are some basic things that you should know when you have read the Science Notes for this chapter.

Vocabulary -- know what you are talking about.

 chromosome  cell wall zoospore eucaryote
 gene nucleus hybrid chloroplast
 genotype procaryote adaptation extremophile
 heterotrophs flagellum autotrophs  cilia
 asexual reproduction dominant gene recessive gene dormant

Concepts - understand the big picture

What is the biological advantage that sexual reproduction has over asexual reproduction?
What are two important differences between a procaryote and a eucaryote?
What factors limit the maximum size of a cell?
What do cells do when the conditions that they are living in change?
How does adaptation work in a community of cells?

A harder question:


Suppose you have a tall sunflower (TT) and a short sunflower (tt).
The characteristic TALL is dominant over the characteristic short.
You hybridize these plants and plant the seeds.

What are the phenotypes and the genotypes of the F1 (first) generation?

Use the diagram below to help you to work out your answer

This diagram is called a Punnet Square.

     
     
     

What do these plants look like?
How many are tall? 
How many are short?

If members of the F1 generation are interbred, what are the phenotypes
and the genotypes of the F2 (second) generation?

Use the diagram below to help you to work out your answer.
     
     
     

What do these plants look like?
How many are tall? 
How many are short?


Facts -- get the details right

Our skin cells repair themselves by ____________ reproduction.
The __________________ contain the information about how an organism develops.
When ________________ first became common in the atmosphere, it was poisonous to the existing life forms.
All cells need to capture ___________  to live.

Picture It!

Draw diagrams of eight cells.
Four cells should be procaryotic cells and four cells should be eucaryotic cells.
In your picture, draw the cells to show the most important differences between procaryotic and eucaryotic cells.
Remember that not all cells have the same shapes.
Look at your eucaryotic cells.
Give one eucaryotic cell a flagellum, give one cilia, and give the third one pseudopodia.
Label the cells and the structures that you drew for them.
Which ones are autotrophs?

Directions for Drawing Program.
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Applet © by R. Berthou at http://www.javaside.com/u_adraw.html
How to save your picture in Windows.
How to save your picture with Macintosh.
© 2000, 2002. Elizabeth Anne Viau. All rights reserved. This material may be used by individuals for instructional purposes but not sold. Please inform the author if you use it at eviau@earthlink.net.