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PLTW PBS Final Exam Review-with 100% verified
solutions -tutor verified
Name 5 pieces of evidence that might be obtained from a crime scene that could
help solve a crime? - (answers)Blood spatter, finger prints, saliva, vomit, pills, hair
How are nucleotides, genes, DNA, and chromosomes related? -
(answers)Chromosomes are found in the nucleus of a cell and are made of DNA. A
gene is a section of the DNA double-helix made up of nucleotides.
What are the three parts of a nucleotide? - (answers)Phosphate, Sugar,
Nitrogenous base
Name the bases of DNA that pair together. - (answers)Adenine, Thymine and
Cytosine, Guanine
Which bases of DNA are purines, how many rings do they have? -
(answers)Adenine, Guanine, 2 rings
Which bases of DNA are pyrimidines, how many rings doe they have? -
(answers)Cytosine, Thymine, 1 ring
What nitrogenous base replaces thymine in RNA? - (answers)Uracil
recognize specific nucleotide sequences and cuts up DNA. - (answers)restriction
enzyme
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Separates nucleic acids or proteins on the basis of their size and electrical charge,
by measuring their rate of movement through an electrical field in a gel. -
(answers)Gel electrophoresis
Which way does DNA run on the gel? - (answers)DNA movers toward the positive
end of the gel because DNA has a slight negative charge.
Where will you find the small and big gel fragments? - (answers)The big fragments
are at the top and smaller fragments are at the bottom because they move
further down the gel.
How does DNA differ from person to person? - (answers)The difference in the
sequence of the nucleotides
What would a glucose tolerance test look like for someone with type 1 diabetes? -
(answers)Line going straight up
What would a glucose tolerance test look like for someone with type 2 diabetes? -
(answers)Line going straight up.
What would an insulin test look like for someone with type 1 diabetes? -
(answers)Line at 0.
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What would an insulin test look like for someone with type 2 diabetes? -
(answers)Line going straight up.
What would an insulin test look like in a healthy person? - (answers)Line that goes
up then down. (arc shape)
The process of adjusting to keep an internal balance (Homeostasis) -
(answers)negative feed back
Increases or amplifys an action (Child birth) - (answers)Positive feed back
Describe the feedback relationship for low blood glucose. - (answers)Glucagon is
released by the alpha cells of the pancreas, glycogen is broken down into glucose,
the liver releases glucose into the blood.
Describe the feedback relationship for high blood glucose . - (answers)Insulin is
released by the beta cells of the pancreas, fat cells take in glucose form the blood,
or extra glucose can be stored in the liver.
Symptoms of type 1 Diabetes - (answers)Excessive urination, extreme fatigue,
unusual thirst, weight loss
Treatment for type 1 Diabetes - (answers)Insulin injections. monitor blood
glucose levels
PLTW PBS Final Exam Review-with 100% verified
solutions -tutor verified
Name 5 pieces of evidence that might be obtained from a crime scene that could
help solve a crime? - (answers)Blood spatter, finger prints, saliva, vomit, pills, hair
How are nucleotides, genes, DNA, and chromosomes related? -
(answers)Chromosomes are found in the nucleus of a cell and are made of DNA. A
gene is a section of the DNA double-helix made up of nucleotides.
What are the three parts of a nucleotide? - (answers)Phosphate, Sugar,
Nitrogenous base
Name the bases of DNA that pair together. - (answers)Adenine, Thymine and
Cytosine, Guanine
Which bases of DNA are purines, how many rings do they have? -
(answers)Adenine, Guanine, 2 rings
Which bases of DNA are pyrimidines, how many rings doe they have? -
(answers)Cytosine, Thymine, 1 ring
What nitrogenous base replaces thymine in RNA? - (answers)Uracil
recognize specific nucleotide sequences and cuts up DNA. - (answers)restriction
enzyme
,2|Page
Separates nucleic acids or proteins on the basis of their size and electrical charge,
by measuring their rate of movement through an electrical field in a gel. -
(answers)Gel electrophoresis
Which way does DNA run on the gel? - (answers)DNA movers toward the positive
end of the gel because DNA has a slight negative charge.
Where will you find the small and big gel fragments? - (answers)The big fragments
are at the top and smaller fragments are at the bottom because they move
further down the gel.
How does DNA differ from person to person? - (answers)The difference in the
sequence of the nucleotides
What would a glucose tolerance test look like for someone with type 1 diabetes? -
(answers)Line going straight up
What would a glucose tolerance test look like for someone with type 2 diabetes? -
(answers)Line going straight up.
What would an insulin test look like for someone with type 1 diabetes? -
(answers)Line at 0.
, 3|Page
What would an insulin test look like for someone with type 2 diabetes? -
(answers)Line going straight up.
What would an insulin test look like in a healthy person? - (answers)Line that goes
up then down. (arc shape)
The process of adjusting to keep an internal balance (Homeostasis) -
(answers)negative feed back
Increases or amplifys an action (Child birth) - (answers)Positive feed back
Describe the feedback relationship for low blood glucose. - (answers)Glucagon is
released by the alpha cells of the pancreas, glycogen is broken down into glucose,
the liver releases glucose into the blood.
Describe the feedback relationship for high blood glucose . - (answers)Insulin is
released by the beta cells of the pancreas, fat cells take in glucose form the blood,
or extra glucose can be stored in the liver.
Symptoms of type 1 Diabetes - (answers)Excessive urination, extreme fatigue,
unusual thirst, weight loss
Treatment for type 1 Diabetes - (answers)Insulin injections. monitor blood
glucose levels
