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bio final
not all questions (comprehensive)
102
Biology
Undergraduate 1
04/25/2011

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Term
stabilizing selection means dat
Definition
da extremes of da population have a lesser chance to survive
Term
protists can b
Definition
decomposers
parasites
photoautotrophs
predators
Term
trypanosomes dat infect humans r transmitted by
Definition
biting insects
Term
da largest algae wud b included in which of da following groups?
Definition
brown algae
Term
4 of da 5 answers listed below r related by a similar category. select da exception
Definition
euglenas
Term
gametophyte
Definition
gamete-producing plant& haploid
Term
all but which of da following describe trends in plant evolution?
Definition
spores of 2 types to spores of one type
Term
which of da following is NOT true of seedless vascular plants
Definition
water is no needed 4 gamete transport
Term
gymnosperms
Definition
were da 1st plants not 2 have swimming sperm& were therefore freed from da need 4 water 2 reproduce
Term
which of da following does NOT belong 2 da protistans?
Definition
archaea
Term
most protistans r
Definition
unicellular
Term
pseudopodia r char of which of da following groups of protozoans?
Definition
amoeboid
Term
which of da following r NOT able 2 carry on photosynthesis?
Definition
amoeba
Term
which algae usu cause red tide?
Definition
dinoflagellates
Term
da algae group most like green plants is
Definition
charophyta
Term
da convergence in external morphology of sharks, penguins, & porpoises is attributed 2
Definition
selection pressures dat r common 2 these groups
Term
da wings of a bird& da wings of a butterfly r _________& show morphological ___________
Definition
analogous; convergence
Term
a locus is
Definition
da location of an allele on a chromosome
Term
if R is dominant 2 r, da offspring of da cross of RR w/rr will
Definition
display da same phenotype as da RR parent
Term
da results of a testcross reveal dat all offspring resemble da parent being tested. dat parent necessarily is
Definition
homozygous
Term
if all da offpspring of a testcross r alike& resemble da org being tested, den dat parent is
Definition
homozygous dominant
Term
Mendel's principle of independent assortment states dat
Definition
each hereditary unit is inherited separately from odda hereditary units
Term
if a child has an AB blood type, da parents
Definition
can have diff blood types, but neither can b blood type O
Term
coat color in 1 breed of mice is controlled by incompletely dominant alleles so dat yellow& white r homozygous, while cream is heterozygous. da cross of 2 cream individuals will produce
Definition
=# of white& yellow mice, w/2x as many creams as da odda 2 colors
Term
Mendel's dihybrid crosses, but not his monohybrid crosses, showed dat
Definition
alleles 4 diff traits were inherited independently
Term
single gene dat effects many traits
Definition
pleiotrophic
Term
cont variation in phenotype is graphically represented by
Definition
a bell-shaped curve
Term
ABO blood types demonstrated da concept of
Definition
multiple alleles
Term
Huntington's disease provided an example of a heritable condition as a result of a _______ genetic disorder
Definition
dominant
Term
da single nutritional facrot w/"convincing evidence 4 risk" 4 many diff types of cancers is
Definition
body fatness
Term
single nutrients such as plant organic molecules like, sulforaphane,/boron may b recognized w/healthful benefits& accepted only if
Definition
evidence is provided thru scientific citation in da literature
Term
________ can provide + changes in DNA which, if heritable, can provide variability among members of a species, providing da basis 4 'natural selection& survival of da fittest'
Definition
Mutagens
Term
plant cells r capable of
Definition
photosynthesis
protein synthesis
glucose synthesis
growth& reproduction
Term
da key molecule in photosynthesis, chlorophyll, is very similar in structure 2 key molecule in our systems needed 4 gas transport, hemoglobin, except an atom of _________ replaces an atom of ____
Definition
magnesium, iron
Term
in photosynthesis, light E boosts da E of subatomic particles, _, dat r derived from water
Definition
e-
Term
reaction center, antenna molecules, & primary e- acceptor r collectively
Definition
chlorophyll a
Term
no a product of da light reactions of photosynthesis
Definition
sugar
Term
during da light reaction, photosystem 2 gets its e- from _______________, while photosystem 1 gets its e- from _____
Definition
photons of light, water
Term
meiosis 1
Definition
separate in2 diff daughter cells
Term
prophase 1
Definition
homologous chromosomes link,
4m tetrads
Term
metaphase 1
Definition
microtubules mo'a homologous chromosomes 2 metaphase plate
Term
anaphase 1
Definition
microtubules separate
Term
telophase 1
Definition
2 haploid daughter cells from cytokinesis
Term
metaphase 2
Definition
sister chromatids line up @ new metaphase plate
Term
telophase 2
Definition
4 haploid cells
Term
anaphase 2
Definition
sister chromatids separate
Term
da sources in our diet of phosphorus r often
Definition
meat,bran milk, & sodas high in phosphoric acid
Term
in a centrifuged test tube of blood from an individual fighting an infection there is a noticeably thicker than normal layer of cells tween da 4med elements & plasm, know as da
Definition
white blood cells
Term
da <3 chamber w.thinner& less muscular walls r da
Definition
atria
Term
da open network of vessels in da body transporting white blood cells& lipids is da
Definition
lymphatic system
Term
da space inside da thoracic cavity decreases& air flows out
Definition
wen da rib muscles relax
wen we exhale
wen da diaphragm relaxes
Term
wen molecules r broken apart in respiration
Definition
da E released in respiration is channeled in2 molecules of ATP
Term
ATP
Definition
can b produced by photosynthesis
is produced in da degradation of org compounds suck as glucose
is generated in anaerobic respiration
is released in aerobic respiration
Term
which part of da E-releasing pathway can convert all C dat enters 2 CO2?
Definition
Krebs cycle
Term
aerobes use __as da final e- acceptor in e- transport phophorylation
Definition
O2
Term
b4 a glucose molecule can b broken down 2 release E
Definition
2 ATP molecules must phosphrylate da 6 C sugar
Term
glycolysis depends on a cont. supply of
Definition
NAD+
Term
glycolysis
Definition
resulfs in da production of pyruvate& occurs in da cytoplasm
Term
da breakdown of pyruvate in da Krebs cycle results in da release of
Definition
E& CO2
Term
H ions diffuse from da outer 2 da inner compartment of da mitochondria thru wot molecule?
Definition
ATP synthase
Term
under anaerobic condition, muscle cells produce
Definition
lactate (lactic acid)
Term
wen fats r broken down as E sourced, their components enter
Definition
glycolysis& da Krebs cycle
Term
thru meiosis,
Definition
alternate 4ms of genes r shuffled
parental DNA is divided& distributed 2 4ming gamets
da diploid chromosome # is reduced 2 haploid
offspring r provided w/new gene combo
Term
homologous chromosomes
Definition
may exchange parts during meiosis
have alleles 4 da same char even tho da gene expressoin may not b da same
r in paires, 1 chromosome of each pair from da father& 1 from da mother
pair up during meiosis
Term
meiosis typically results in da production of
Definition
4 haploid cells
Term
during meiosis 2
Definition
sister chromatids of each chromosome r separated from each odda
Term
pairing of homologues& crossing ova occur during
Definition
prophase 1
Term
da archaebacteria can b described by all but?
Definition
pathogenic
Term
which no belong?
amoebas
euglenas
foraminiferans
radiolarians
heliozoans
Definition
euglenas
Term
which NO belong 2 da protistans?
Definition
archaea
Term
da portion of da DNA molecule dat is translated is composed of
Definition
exons
Term
alleles r various 4ms of a ____@ a given locus on sister chromatids
Definition
gene
Term
da term dat refers 2 "programmed cell death" is known as _________
Definition
apoptosis
Term
Mendel's principle of independent assortment states dat
Definition
da 2 hereditary units dat influence a certain trait segregate during gamete 4mation
Term
da phase of mitosis where da nuclear envelop begins 2 degrade da replicated DNA strands begin 2 condense is known as ________
Definition
prophase
Term
da predominant source of da amino acids 4 da processes of protein synthesis r
Definition
predominantly available in da cytoplasm as a result of recycling "yesterday's" worn out molecules
Term
a reaction center, antenna molecules, & primary e- acceptor r collectively known as a ___________
Definition
photosystem
Term
in order 4 a plant 2 produce a single molecule of G3P da Calvin cycle must complete _____
Definition
3 turns of da cycle
Term
traits dat display cont. variation& normal distribution curves r considered 2 b da result of
Definition
polygenic inheritance
Term
Mendel's theories provided valuable info about da mechanisms of inheritance&
Definition
influenced da dev of Darwin's theory of evolution
Term
da chromosomes r aligned in da middle of a cell during
Definition
metaphase
Term
chromosome reduction takes place during
Definition
meiosis 2
Term
da # of functional gametes as a result of oogenesis is _&4 spermatogenesis_
Definition
1;4
Term
Mendel's theory of segregation
Definition
explains da behavior of a pair of alleles during meiosis
Term
age-related anatomical changes in nervous system
Definition
reduce brain weight and size
Term
eye outer fibrous layer
Definition
support, protection, muscle attachment
Term
eye intermediate vascular layer
Definition
blood supply, regulate light entry, focus
Term
rods
Definition
respond to photon
no discriminate light colors
sensitive to light
Term
cones
Definition
color vision
less sensitive to light
densely clustered in fovea, @center of macula
Term
sarcolemma
Definition
cell membrane of muscle fiber
surround sarcoplasm
Term
contraction cycle
Definition
1. begin
2. active-site exposure
3. cross-bridge formation
4. myosin head pivot
5. cross-bridge detachment
6. myosin reactivation
Term
tension production
length-tension relationship
# of pivoting cross-bridges depend on
Definition
overlap amount tween thick and thin fibers
Term
creatine phosphate (CP)
Definition
storage molecule 4 excess ATP E in resting muscle
Term
3 skeletal muscle fibers
Definition
fast
slow
intermediate
Term
cardiac muscle cells
Definition
no triads
small
single nucleus
short,wide T tubules
Term
smooth muscle char
Definition
long,slender,spindle shaped
single nucleus
no T-tubules, myofibrils, sarcomeres
no tendons or aponeuroses
Term
1st-class lever
Definition
seesaw
4ce& load balance
Term
req muscles of head &neck
Definition
buccinator
orbicularis oris
risorius
Term
shoulder and upper limb muscles
4 groups
Definition
position pectoral girdle
move arm
move 4arm& hand
move hand &fingers
Term
axoplasm
Definition
contain neurofibrils,neurotubules,enzymes
Term
ependymal cells
Definition
4m epithelium (ependyma)
line central canal of spinal cord and brain ventricles
Term
5 membrane processes in neural activities
Definition
1. resting potential
2. graded potential
3. action potential
4. synaptic activity
5. info processing
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