BIOD 121 FINAL EXAM LATEST 2025 ACTUAL EXAM
ALL 150 QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) ALREADY GRADED A+
What is secondary growth? - ANSWER>>Growth in diameter
The secondary plant body consists of the tissues produced by the vascular cambium
and cork cambium
Characteristic of gymnosperms
Secondary xylem accumulates as what? - ANSWER>>Wood, and consists of cells that
carry or carried water, and fibers.
What is the most inclusive category of classification? - ANSWER>>Domain
What cells are smaller than the cells of your body and lack nuclei? -
ANSWER>>Prokaryotic cells
What results when there is differential success in survival and reproduction? -
ANSWER>>Evolution
What are specialized membrane-bound compartments? - ANSWER>>Organelles
What is a community? - ANSWER>>Different species living together
What are polar covalent bonds? - ANSWER>>The chemical bonds in a water molecule
between oxygen and hydrogen
What is nitrogen fixation? - 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? - ANSWER>>Fungi
What is composting? - 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? - 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 -
ANSWER>>Control & placebo
How does science differ from art, religion and philosophy? - 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? - ANSWER>>Secondary and tertiary consumer
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 Bcan Bdock Bon Ba Bbrain Breceptor Bnormally Bserving Bas Ba Bdock Bfor Ba Bnatural
Bbrain Bchemical Bnamed Bendorphin. BThis Bbest Bdemonstrates Bwhat? B-
BANSWER>>That Bshape Bdetermines Bhow Bbiological Bmolecules Brecognize Band
Brespond Bto Bone Banother
What Bis Bone Bcalorie? B- BANSWER>>The Bamount Bof Bheat Benergy Bnecessary Bto Braise Bthe
Btemperature Bof B1 Bgram Bof Bliquid Bwater Bby B1 Bdegree BCelsius
Name Ba Bchemical Bfunctional Bgroup B- BANSWER>>Hydroxyl BOH
BAmino BNH3
What Bare Bthe Bfour Bmajor Bgroups Bof Blarge Borganic Bmolecules? B-
BANSWER>>Carbohydrates
Lipids
BProteins
BNucleic
BAcids
How Bmany Bmolecules Bof Bwater Bare Bneeded Bto Bcompletely Bbreakdown Ba Bpolymer Bthat Bis
B8 Bmonomers Blong? B- BANSWER>>One Bmolecule Bless Bthan Bthere Bare Bmonomers. BIn
Bthis Bcase, B7 Bmolecules
Name Ba Bdisaccharide Bor Bname Ba Bmonosaccharide B- BANSWER>>Disaccharide: Blactose-
Bmilk Bsugar
Name Bthe Bstorage Bpolysaccharide Bof Bplants Bor Bthe Bstorage Bpolysaccharide Bof Banimals B-
BANSWER>>Plants: Bstarch
Animals: Bglycogen
What Bis Bthe Bmain Bidea Bof Busing BDNA Bor Bproteins Bas B"tape Bmeasures" Bof Bevolution? B-
BANSWER>>DNA Band Bproteins Bare Bvery Blong Band Bcoiled Band Bif Bunwound Bcould
Bresemble Ba Btape Bmeasure. BEach Bamino Bacid Bwould Bindicate Bsimilarities Bbetween
Borganisms Bover Btime Band Bcreates Ba Blineage Bof Bwhich Borganisms Bare Bclosely Brelated
Bto. BIn Bwhich, Bhumans Band Bgorillas Bare Bonly Bone Bamino Bacid Bdifferent Bwhich Btells Bus
Bthat Bwe Bare Bnot Bthat Bdistantly Brelated Bin Bevolutionary Btime
What Bkinds Bof Bbonds Bdo Banimal Blipids Bhave? B- BANSWER>>Single Bbonds
What Bkinds Bof Bbonds Bdo Bplant Blipids Bhave? B- BANSWER>>Double Bbonds
Are Banimal Blipids Bpredominantly Bsaturated Bor Bunsaturated? B-
BANSWER>>Predominantly Bsaturated
Are Bplant Blipids Bpredominantly Bsaturated Bor Bunsaturated? B- BANSWER>>Predominantly
Bunsaturated
ALL 150 QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) ALREADY GRADED A+
What is secondary growth? - ANSWER>>Growth in diameter
The secondary plant body consists of the tissues produced by the vascular cambium
and cork cambium
Characteristic of gymnosperms
Secondary xylem accumulates as what? - ANSWER>>Wood, and consists of cells that
carry or carried water, and fibers.
What is the most inclusive category of classification? - ANSWER>>Domain
What cells are smaller than the cells of your body and lack nuclei? -
ANSWER>>Prokaryotic cells
What results when there is differential success in survival and reproduction? -
ANSWER>>Evolution
What are specialized membrane-bound compartments? - ANSWER>>Organelles
What is a community? - ANSWER>>Different species living together
What are polar covalent bonds? - ANSWER>>The chemical bonds in a water molecule
between oxygen and hydrogen
What is nitrogen fixation? - 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? - ANSWER>>Fungi
What is composting? - 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? - 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 -
ANSWER>>Control & placebo
How does science differ from art, religion and philosophy? - 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? - ANSWER>>Secondary and tertiary consumer
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 Bcan Bdock Bon Ba Bbrain Breceptor Bnormally Bserving Bas Ba Bdock Bfor Ba Bnatural
Bbrain Bchemical Bnamed Bendorphin. BThis Bbest Bdemonstrates Bwhat? B-
BANSWER>>That Bshape Bdetermines Bhow Bbiological Bmolecules Brecognize Band
Brespond Bto Bone Banother
What Bis Bone Bcalorie? B- BANSWER>>The Bamount Bof Bheat Benergy Bnecessary Bto Braise Bthe
Btemperature Bof B1 Bgram Bof Bliquid Bwater Bby B1 Bdegree BCelsius
Name Ba Bchemical Bfunctional Bgroup B- BANSWER>>Hydroxyl BOH
BAmino BNH3
What Bare Bthe Bfour Bmajor Bgroups Bof Blarge Borganic Bmolecules? B-
BANSWER>>Carbohydrates
Lipids
BProteins
BNucleic
BAcids
How Bmany Bmolecules Bof Bwater Bare Bneeded Bto Bcompletely Bbreakdown Ba Bpolymer Bthat Bis
B8 Bmonomers Blong? B- BANSWER>>One Bmolecule Bless Bthan Bthere Bare Bmonomers. BIn
Bthis Bcase, B7 Bmolecules
Name Ba Bdisaccharide Bor Bname Ba Bmonosaccharide B- BANSWER>>Disaccharide: Blactose-
Bmilk Bsugar
Name Bthe Bstorage Bpolysaccharide Bof Bplants Bor Bthe Bstorage Bpolysaccharide Bof Banimals B-
BANSWER>>Plants: Bstarch
Animals: Bglycogen
What Bis Bthe Bmain Bidea Bof Busing BDNA Bor Bproteins Bas B"tape Bmeasures" Bof Bevolution? B-
BANSWER>>DNA Band Bproteins Bare Bvery Blong Band Bcoiled Band Bif Bunwound Bcould
Bresemble Ba Btape Bmeasure. BEach Bamino Bacid Bwould Bindicate Bsimilarities Bbetween
Borganisms Bover Btime Band Bcreates Ba Blineage Bof Bwhich Borganisms Bare Bclosely Brelated
Bto. BIn Bwhich, Bhumans Band Bgorillas Bare Bonly Bone Bamino Bacid Bdifferent Bwhich Btells Bus
Bthat Bwe Bare Bnot Bthat Bdistantly Brelated Bin Bevolutionary Btime
What Bkinds Bof Bbonds Bdo Banimal Blipids Bhave? B- BANSWER>>Single Bbonds
What Bkinds Bof Bbonds Bdo Bplant Blipids Bhave? B- BANSWER>>Double Bbonds
Are Banimal Blipids Bpredominantly Bsaturated Bor Bunsaturated? B-
BANSWER>>Predominantly Bsaturated
Are Bplant Blipids Bpredominantly Bsaturated Bor Bunsaturated? B- BANSWER>>Predominantly
Bunsaturated
