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Biology Assessment I -- review. What is “Active Transport?” Is energy required? If so, where does it come from?. What does this diagram show? . What are the sequence of steps? Where does this occur (be specific)? What are the cell parts involved?.

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what does this diagram show
What does this diagram show?
  • What are the sequence of steps?
  • Where does this occur (be specific)?
  • What are the cell parts involved?
the dna of embryonic stem cells can make any protein the organism needs
The DNA of embryonic stem cells can make any protein the organism needs.
  • Why don’t liver cells make nerve cell proteins?
what would cause the wrong amino acid to be specified during protein synthesis
What would cause the wrong amino acid to be specified during protein synthesis?
  • Could that stop protein synthesis too soon? What do we call the DNA sequences that specify each amino acid in a protein? Could this cause an inherited genetic disease?
what does this picture represent
What does this picture represent?
  • What does the real thing do?
what is the golgi apparatus
What is the Golgi apparatus?
  • What does it do?
  • Where is it found?
can you name the four differences between eukaryotic and prokaryotic cells
Can you name the four differences between Eukaryotic and Prokaryotic cells?
  • One difference is a structure.
  • Which difference is that?
this diagram shows the calvin cycle
This diagram shows the Calvin cycle.
  • What is going in?
  • What is coming out?
what does a chain of amino acids linked together form
What does a chain of amino acids linked together form?
  • If each amino acid is a “monomer,” what do we call several linked together?
what kind of molecules are enzymes
What kind of molecules are enzymes?
  • What other activities is that family of molecules involved with?
what is a codon
What is a “codon?”
  • In the “translation” part of protein synthesis, what does a codon bind to?
  • What is the overall molecule called?
  • What does that molecule carry?
this cartoon represents peer review of a science study
This cartoon represents “peer review” of a science study.
  • What does it mean to you?
  • Compare to other types of reviews, such as a paid announcer or someone from a rights group.
what does this diagram show1
What does this diagram show?
  • “Hypotonic” means what? Define the other words.
enzymes denature don t function under certain conditions
Enzymes “denature” (don’t function) under certain conditions.
  • Amylase denatures when it is too hot. What is the best temperature for amylase activity?
  • Is this greater or less than room temperature?
what are the chemical parts of this molecule
What are the chemical parts of this molecule?
  • What is the molecule?
  • Where is it found?
slide17

Watson and Crick found that each sequence of three bases on the “unzipped” DNA strand coded for a given amino acid, after being translated into RNA.

if you substitute letters for the amino acids found by watson and crick you can create a code table
If you substitute letters for the amino acids found by Watson and Crick, you can create a code table.
slide19

Look at the following table and the encoded message. Decode the message. What does it say? Remember, if your “reading frame” is off, then the codons will not be correct and you will have a mutation. Note that “Uracil” replaces Thymine in RNA. The other bases are the same as in DNA.