Tricks
Which class of biochemical compounds have the least amount of "ingredients"?
Cabohydrates: consist of carbon, oxygen and hydrogen
What is organic chemistry?
the study of compounds containing carbon and hydrogen, or organic compounds.
What is an alkane?
A saturated hydrocarbon.
The remains of this type of animal produces petroleum.
Marine animals
A swing is an example of what kind of machine?
A pendulum
How is a majority of the electric power in the United States made?
Burning coal in power plants
Fossil fuels are mixtures of hydrocarbons that formed from the remains of plants or animals. Coal, natural gas, and petroleum are the three types.
What gas do cows produce in their digestive tract?
Methane.
What is photosynthesis?
Biochemical reaction in which food is made.
What is Bernoulli's principle?
What kind of unsaturated hydrocarbon could I use to ripen a green banana?
An alkene (ethene).
What is the difference between an monomer and a polymer?
Polymers are large molecules composed of repeating smaller molecules called monomers eg. glucose (monomer)--->starch (polymer)
What is a saturated hydrocarbon?
A hydrocarbon that contains only single bonds.
Releasing food from energy is called___________.
cellular respiration
How could an investigator use physics to figure out how fast a car was going before an accident?
By collecting data on the car's tires, the road surface, and the lengths of the skid marks. He could figure out the coefficient of friction and the frictional force to stop the car.
Which is more valuable: carbon atoms arranged in widely spaced in layers, carbon atoms that are bonded to four other carbon atoms, or carbon atoms arranged in hollow cages?
Carbon atoms that are bonded to four other carbon atoms (diamond)
What are the four classes of biochemical compounds?
What are the three ways a hydrocarbon can be arranged?
Straight chain, branched chain or ring
What two chemicals are combined with sunlight to produce glucose?
Carbon dioxide and water
What kind of beams are used in a CT scan? How does it create an image that is distinct in the health care profession?
CT scans send narrow beams of x rays into the patient as it rotates around the person's body. These are sent to a computer where the images are stacked together to create a 3-D image. This is different than an X-ray in that it is 3-D.
Balance the following equation:
C3H8 + O2------> CO + H2O
2C3H8 + 7O2--------->6CO +8H2O
What is the difference in an enzyme and a vitamin?
Enzymes are protein catalysts that speed up the reaction to break down and digest food. Vitamins are organic compounds that organisms need in small amounts but they cannot produce themselves.
Draw an example of an isomer.
H H H H. H H
H-C-C-C-C-H. H-C-C-H
H H H H. H-C-C-H
H H
What chemical is the reactant in photosynthesis and the product in cellular respiration?
Two ping-pong balls are suspended from strings so they hand at the same height with a small space between them. When a hair dryer is used to blow air between them, they come together and touch. Explain why this happens.
Bernoulli's principle, the moving air between the balls has a lower pressure than the surrounding nonmoving air. The greater pressure on the outside of the balls, pushing them inward.