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BIO 101 - FINAL EXAM STUDY QUESTIONS AND ANSWERS LATEST UPDATE
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BIO 101 - FINAL EXAM STUDY QUESTIONS AND ANSWERS LATEST UPDATE
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BIO 101 - FINAL EXAM STUDYQUESTIONS AND ANSWERS LATEST
UPDATE
Organisms belonging to the same *BLANK* would be the most closely related. -
Answer-family
Which of these individuals is most likely to be successful in an evolutionary sense?
(a) an organism that dies after 5 days of life but leaves 10 offspring, all of whom survive
to reproduce.
(b) a male who mates with 20 females and fathers 1 offspring
(c) a reproductively sterile individual who never falls ill
(d) an organism that lives 100 years, has 2 offspring who survive the reproduce -
Answer-(a) an organism that dies after 5 days of life, but leaves 10 offspring, all of
whom survive to reproduce
Which of the following classifications contains prokaryotic organisms?
(a) prolista
(b) eukarya
(c) bacteria
(d) animalia - Answer-(c) bacteria
A scientific hypothesis MUST be ...
(a) correct
(b) testable
(c) falsifiable
(d) medically applicable - Answer-(b) testable
(c) falsifiable
The modern classification system contains *BLANK NUMBER* domains. - Answer-3
Homeostasis is kept under strict regulation by feedback mechanisms. Positive feedback
mechanisms are always beneficial to the organism, while negative feedback
mechanisms are always harmful. *TRUE* or *FALSE*? - Answer-False
Describe the following feedback mechanisms:
(a) sensor
(b) integration center
(c) effector
(d) response - Answer-(a) senses the environment
(b) analyzes information and decides what must be done
(c) decides what must be done, carries out any alteration that are required
(d) the result of the body reacting to the environmental change
,Suckling by an infant stimulates sensory neurons in the nipples, generating signals in
the nervous system that reach the hypothalamus. Nerve impulses from the
hypothalamus then trigger the release of the neurohormone oxytocin from the posterior
pituitary gland. In response to the oxytocin, the mammary glands secrete milk. Milk
release leads to more suckling and more stimulation. This situation is an example of
*WHAT* type of feedback mechanism? - Answer-positive feedback
List the categories of classification in order from the most general category to the most
specific category. - Answer-domain
kingdom
phylum
class
order
family
genus
species
In an evolutionary sense, the organism that produces the most offspring is the most
successful. *TRUE* or *FALSE*? - Answer-True
From a scientific viewpoint, why might concluding that people have a build in alarm
clock because you wake up before the alarm goes off in the morning be an incorrect
conclusion? - Answer-Because it generalizes about ALL people based on a single case
and there may be variables that woke you use without a built in alarm clock.
Due to its number of valence electrons, carbon can form *BLANK NUMBER* of covalent
bonds. - Answer-4
A reaction that releases energy can be categorized as *WHAT*? - Answer-exergonic
catabolic
If the atomic number of an atom is 11 and the atomic mass is 23, how many protons are
in the nucleus of the atom? - Answer-11
the number of electrons = the number of protons = atomic number
If the atomic number of an atom is 11 and the atomic mass is 23, how many neutrons
are in the nucleus of the atom? - Answer-12
the number of neutrons = the atomic mass minus the atomic number
The characteristic way in which atoms of an element react is most related to the
*WHAT*? - Answer-the number of electrons in the outermost shell
If an atom has a charge of -2, it must have *WHAT*? - Answer-2 more negative
electrons for a -2 charge
, Basic (or base) solutions have what characteristics? - Answer-a pH of greater than 7
take up hydrogen (H+) ions
release hydroxide (OH-) ions
solution with a LOW amount of H+ ions
solution with a HIGH amount of OH- ions
Describe the following bond types:
(a) non-polar covalent bond
(b) polar covalent bond
(c) hydrogen bond
(d) ionic bond - Answer-(a) equal sharing of valence electrons
(b) unequal sharing of valence electrons
(c) attraction of the slight negative charge at one end of one water molecule to the slight
positive charge of another water molecule
(d) transfer of electrons from one atom to another
What are carbohydrates used for? - Answer-structure and support
energy storage
What polymer category do the following monomers fall under?
(a) monosaccharide
(b) glycerol and fatty acids
(c) amino acids
(d) nucleotide - Answer-(a) cellulose
(b) Lipids
(c) enzymes, protein, polypeptide
(d) nucleic acids, DNA, RNA
Saturated fatty acids have no double bonds between the carbon atoms while saturated
fatty acids have double bonds in the carbon chain. *TRUE* or *FALSE*? - Answer-True
What process is used to form a peptide bone between amino acids? - Answer-
dehydration synthesis
In a chemical reaction, there is an amount of energy needed to get the reaction going.
This is called *WHAT*? - Answer-activation energy
What term is used for molecules that have identical molecular formulas but the atoms in
each molecule are arranged differently? - Answer-isomer
What are the changes that enzymes can make to their substrates? - Answer-enzymes
do not interact with the nucleus of atoms, enzymes merely enable a reaction to happen
more quickly
To break a polymer back into monomers, what reaction is used? - Answer-Hydrolysis
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