BIO 121 FINAL EXAM LATEST 2024 ACTUAL EXAM TEST BANK 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+

BIO 121 FINAL EXAM LATEST 2024 ACTUAL EXAM
TEST BANK 300 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES
(VERIFIED ANSWERS) |ALREADY GRADED A+
What are three functions of proteins? - ...ANSWER...Movement
(work horses of life)
Oxygen carrying
Structure
What are the main decomposers in an ecosystem? -
...ANSWER...Fungi & bacteria
There is mercury in seafood. The seafood having the highest
concentrations of mercury are where in the food chain? -
...ANSWER...At the top of the food chain
What is one lesson from the pyramid of numbers? -
...ANSWER...Eating grain-fed beef is an inefficient means of
obtaining the energy trapped by photosynthesis
What is a population? - ...ANSWER...The members of one species
that inhabit a particular area at a given time
How does carbon in the air get into organic molecules? -
...ANSWER...Photosynthesis
If the CO2 concentration of the atmosphere was 300 parts per million
(ppm) in 1950 and will be 400 ppm in the year 2020, what percent
increase will have taken place?
And what is the formula to determine this? - ...ANSWER...Formula:
difference/original x 100
100/300 x 100 = 33
What are two ways that carbon is released into the atmosphere? -
...ANSWER...1. Cellular respiration
2. Burning of wood & fossil fuels
What is noteworthy or interesting about the nitrogen cycle? -
...ANSWER...The nitrogen cycle begins with living organisms and
their organic states & decomposers break those organisms down once
they are dead to turn the nitrogen in them to an inorganic state.
Finally, plants take up that nitrogen & return it to an organic state
Morphine can dock on a brain receptor normally serving as a dock for
a natural brain chemical named endorphin. This best demonstrates
what? - ...ANSWER...That shape determines how biological
molecules recognize and respond to one another
What is one calorie? - ...ANSWER...The amount of heat energy
necessary to raise the temperature of 1 gram of liquid water by 1
degree Celsius
Name a chemical functional group - ...ANSWER...Hydroxyl OH
Amino NH3
What are the four major groups of large organic molecules? -
...ANSWER...Carbohydrates
Lipids
Proteins
Nucleic Acids
How many molecules of water are needed to completely breakdown a
polymer that is 8 monomers long? - ...ANSWER...One molecule less
than there are monomers. In this case, 7 molecules
Name a disaccharide or name a monosaccharide -
...ANSWER...Disaccharide: lactose- milk sugar
Name the storage polysaccharide of plants or the storage
polysaccharide of animals - ...ANSWER...Plants: starch
Animals: glycogen
What is the main idea of using DNA or proteins as "tape measures" of
evolution? - ...ANSWER...DNA and proteins are very long and coiled
and if unwound could resemble a tape measure. Each amino acid
would indicate similarities between organisms over time and creates a
lineage of which organisms are closely related to. In which, humans
and gorillas are only one amino acid different which tells us that we
are not that distantly related in evolutionary time
What kinds of bonds do animal lipids have? - ...ANSWER...Single
bonds
What kinds of bonds do plant lipids have? - ...ANSWER...Double
bonds
Are animal lipids predominantly saturated or unsaturated? -
...ANSWER...Predominantly saturated
Are plant lipids predominantly saturated or unsaturated? -
...ANSWER...Predominantly unsaturated
In the Devil's Garden experiment, explain what the results would have
looked like if the D tree was the cause instead of the ants -
...ANSWER...If the D tree was the cause instead of the ants in this
experiment, you would see the inside protected column raised,
indicating more dead leaf tissue after one day
If a genetic mutation changes primary structure, why might it destroy
the protein's function? - ...ANSWER...Changing the primary structure
would change the shape of a protein. The shape of a protein
determines the function it will serve