POB FINAL (UARK, SHADWICK) EXAM
2025 QUESTIONS AND ANSWERS
Which of the following includes prokaryotes?
a. protists
b. fungi
c. archea
d. plants - ANS archea
The term "supergroup" is used in the classification of what? - ANS eukaryotes
atomic number tells you... - ANS number of protons
isotopes differ in their... - ANS number of neutrons
an atom that has 2 electrons in the valence shell would most likely... - ANS lose those 2
electrons and becomes positive
When an atom gains electrons it becomes... - ANS negatively charged
unequal sharing of electrons - ANS polar covalent bond
True/False: Are carbon atoms ionic? - ANS false
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,what reaction combines 2 monomers to make a polymer? - ANS dehydration
monomers of carbohydrates - ANS monosaccharides
fructose and galactose are both isomers of... - ANS glucose
a fatty acid is unsaturated if it... - ANS contains carbon-carbon double bonds
True/False: Are phospholipids energy-storing molecules? - ANS false
lipid that contains 4 fused carbon rings - ANS steroid
chemical differences between amino acids are due to... - ANS R group
which level of protein structure is determined by interactions of more than one polypeptide
chain? - ANS quaternary
what is formed by the linking of two amino acids? - ANS peptide bond
True/False: Nucleotides are the monomers of fats and polysaccharides. - ANS false
True/False: ATP is a high-energy molecule that can break down to ADP and phosphate. -
ANS true
the gradual strengthening of stimulus-response connections that seemingly unrelated -
ANS classical conditioning
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, What type of survivorship curve would you expect for a plant species in which most seedlings
die? - ANS type 3
high survival rate in early and middle life, rapid decline in survival in later life, few offspring,
care for young, humans and many other large mammals - ANS type 1
lots of offspring with little care after birth, life expectancy is short - ANS type 2
high infant mortality rate, longer life span - ANS type 3
role of a species in a community, including its habitat and interaction with other species -
ANS ecological niche
exhibition of the characteristics of a dangerous species by a harmless species to avoid predators
- ANS Batesian mimicry
exhibition of similar characteristics by similar species to avoid predators - ANS Mullerian
mimicry
types of symbiosis - ANS mutualism, commensalism, parasitism
series of community changes which occur on an entirely new habitat which has never been
colonized before - ANS primary succession
series of community changes which take place on a previously colonized, but disturbed or
damaged habitat - ANS secondary succession
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 3
2025 QUESTIONS AND ANSWERS
Which of the following includes prokaryotes?
a. protists
b. fungi
c. archea
d. plants - ANS archea
The term "supergroup" is used in the classification of what? - ANS eukaryotes
atomic number tells you... - ANS number of protons
isotopes differ in their... - ANS number of neutrons
an atom that has 2 electrons in the valence shell would most likely... - ANS lose those 2
electrons and becomes positive
When an atom gains electrons it becomes... - ANS negatively charged
unequal sharing of electrons - ANS polar covalent bond
True/False: Are carbon atoms ionic? - ANS false
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 1
,what reaction combines 2 monomers to make a polymer? - ANS dehydration
monomers of carbohydrates - ANS monosaccharides
fructose and galactose are both isomers of... - ANS glucose
a fatty acid is unsaturated if it... - ANS contains carbon-carbon double bonds
True/False: Are phospholipids energy-storing molecules? - ANS false
lipid that contains 4 fused carbon rings - ANS steroid
chemical differences between amino acids are due to... - ANS R group
which level of protein structure is determined by interactions of more than one polypeptide
chain? - ANS quaternary
what is formed by the linking of two amino acids? - ANS peptide bond
True/False: Nucleotides are the monomers of fats and polysaccharides. - ANS false
True/False: ATP is a high-energy molecule that can break down to ADP and phosphate. -
ANS true
the gradual strengthening of stimulus-response connections that seemingly unrelated -
ANS classical conditioning
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 2
, What type of survivorship curve would you expect for a plant species in which most seedlings
die? - ANS type 3
high survival rate in early and middle life, rapid decline in survival in later life, few offspring,
care for young, humans and many other large mammals - ANS type 1
lots of offspring with little care after birth, life expectancy is short - ANS type 2
high infant mortality rate, longer life span - ANS type 3
role of a species in a community, including its habitat and interaction with other species -
ANS ecological niche
exhibition of the characteristics of a dangerous species by a harmless species to avoid predators
- ANS Batesian mimicry
exhibition of similar characteristics by similar species to avoid predators - ANS Mullerian
mimicry
types of symbiosis - ANS mutualism, commensalism, parasitism
series of community changes which occur on an entirely new habitat which has never been
colonized before - ANS primary succession
series of community changes which take place on a previously colonized, but disturbed or
damaged habitat - ANS secondary succession
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 3
