Transcript Benchmark I Review - Fort Hill High School

Biological
Molecules
Control Groups
 Are used to compare your results to the experimental
group
Experiment
 A scientist is testing mild for the presence of bacteria.
Exactly 100 ml of a test solution must be added to each
milk sample. Which of these instruments would most
accurately measure the volume of the test solution?
Measurement
 Which unit is best for measuring the height of a newly
sprouted plant?
Water
Is polar
And a universal
solvent
Acids and Bases
Double Helix
Nucleotide
Microscopes
Proteins
Are made up of amino acids
Vitamin D
 Responsible for proper bone formation
Enzymes
 Help to speed up chemical reactions
 Help to break down substances
Nucleic Acids
Store hereditary information
Are found in our
DNA
Carbohydrates
Are a good source of food
Are found in starches
Toxins
any poison produced by an organism, characterized by
antigenicity in certain animals and high molecular
weight, and including the bacterial toxins that are the
causative agents of tetanus, diphtheria, etc.,
and such plant and animal toxins
as ricin and snake venom.
Rates of Reactions
 Are affected by temperatures:
 Colder temperatures slow down reactions
 Warmer temperatures speed up reactions
 As pH decreases so
 will reaction rates
Lab Safety
 Wear goggles when using chemicals and glass
 Know your
safety
symbols
Benchmark I on Monday