BIO 101 - FINAL Exam Questions and
Answers 100% Pass
Organisms belonging to the same *BLANK* would be the most closely related. - ANS 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 - ANS (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 - ANS (c) bacteria
A scientific hypothesis MUST be ...
(a) correct
(b) testable
(c) falsifiable
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(d) medically applicable - ANS (b) testable
(c) falsifiable
The modern classification system contains *BLANK NUMBER* domains. - ANS 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*? - ANS False
Describe the following feedback mechanisms:
(a) sensor
(b) integration center
(c) effector
(d) response - ANS (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? -
ANS positive feedback
List the categories of classification in order from the most general category to the most specific
category. - ANS domain
kingdom
phylum
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class
order
family
genus
species
In an evolutionary sense, the organism that produces the most offspring is the most successful.
*TRUE* or *FALSE*? - ANS 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? -
ANS 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.
- ANS 4
A reaction that releases energy can be categorized as *WHAT*? - ANS 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? - ANS 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? - ANS 12
the number of neutrons = the atomic mass minus the atomic number
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The characteristic way in which atoms of an element react is most related to the *WHAT*? -
ANS the number of electrons in the outermost shell
If an atom has a charge of -2, it must have *WHAT*? - ANS 2 more negative electrons for a -2
charge
Basic (or base) solutions have what characteristics? - ANS 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 - ANS (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? - ANS structure and support
energy storage
What polymer category do the following monomers fall under?
(a) monosaccharide
(b) glycerol and fatty acids
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