BIO 121 Final Exam Questions with 100% Correct Answer
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BIO 121
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BIO 121
What is the most inclusive category of classification? Correct Answer Domain
What cells are smaller than the cells of your body and lack nuclei? Correct Answer Prokaryotic cells
What results when there is differential success in survival and reproduction? Correct Answer Evolution
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BIO 121 Final Exam Questions with 100% Correct Answer What is the most inclusive category of classification? Correct Answer Domain
What cells are smaller than the cells of your body and lack nuclei? Correct Answer Prokaryotic cells
What results when there is differential success in survival and reproduction? Correct Answer Evolution
What are specialized membrane-bound compartments? Correct Answer Organelles
What is a community? Correct Answer Different species living together
What are polar covalent bonds? Correct Answer The chemical bonds in a water molecule between oxygen and hydrogen
What is nitrogen fixation? Correct Answer Conversion by bacteria, bacteria that may be on the roots of legumes, of a common component of the air into something useful to organisms
What is one of the several eukaryotic kingdoms? Correct Answer Fungi
What is composting? Correct Answer The stacking up of plant scraps, when you let them rot, and then use the material in the soil around veggies and/or flowers
What is an example of science moving forward as a result of a surprise, a discovery that
a researcher was not looking for? Correct Answer The discovery of amino acids was a surprise to scientists as they were combining organic molecules found in the surroundings and amino acids formed as a result, proving that they occur spontaneously
If you were to design an experiment testing the benefit of a vitamin, half of the participants would be given the vitamin and the _____ group would be given ______ Correct Answer Control & placebo
How does science differ from art, religion and philosophy? Correct Answer By limiting its
inquiry to the observable and measurable
Consider this segment of a food web: snails and grasshoppers eat tomato plants; spiders eat grasshoppers; shrews eat snails and spiders; owls eat shrews. The shrew occupies what trophic level? Correct Answer Secondary and tertiary consumer
What are three functions of proteins? Correct Answer Movement (work horses of life)
Oxygen carrying
Structure
What are the main decomposers in an ecosystem? Correct Answer Fungi & bacteria
There is mercury in seafood. The seafood having the highest concentrations of mercury are where in the food chain? Correct Answer At the top of the food chain
What is one lesson from the pyramid of numbers? Correct Answer Eating grain-fed beef
is an inefficient means of obtaining the energy trapped by photosynthesis
What is a population? Correct 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? Correct 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? Correct Answer Formula: difference/original x 100
100/300 x 100 = 33
What are two ways that carbon is released into the atmosphere? Correct Answer 1. Cellular respiration
2. Burning of wood & fossil fuels
What is noteworthy or interesting about the nitrogen cycle? Correct 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? Correct Answer That shape determines how biological molecules recognize and respond to one another
What is one calorie? Correct 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 Correct Answer Hydroxyl OH
Amino NH3 What are the four major groups of large organic molecules? Correct Answer Carbohydrates
Lipids
Proteins Nucleic Acids
How many molecules of water are needed to completely breakdown a polymer that is 8 monomers long? Correct Answer One molecule less than there are monomers. In this case, 7 molecules
Name a disaccharide or name a monosaccharide Correct Answer Disaccharide: lactose- milk sugar
Name the storage polysaccharide of plants or the storage polysaccharide of animals Correct Answer Plants: starch Animals: glycogen
What is the main idea of using DNA or proteins as "tape measures" of evolution? Correct 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? Correct Answer Single bonds
What kinds of bonds do plant lipids have? Correct Answer Double bonds
Are animal lipids predominantly saturated or unsaturated? Correct Answer Predominantly saturated
Are plant lipids predominantly saturated or unsaturated? Correct 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 Correct 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? Correct Answer Changing the primary structure would change the shape of a protein. The shape of a protein determines the function it will serve
Which two categories of plants do you consume in one day or one meal if you are not eating meat and don't have soybeans or quinoa? Correct Answer Grains and legumes
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