Which%20of%20the%20following%20organisms%20are%20autotrophs?%20algae%20some%20bacteria%20plants%20some%20protozoans%20all%20of%20the%20above - PowerPoint PPT Presentation

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Which%20of%20the%20following%20organisms%20are%20autotrophs?%20algae%20some%20bacteria%20plants%20some%20protozoans%20all%20of%20the%20above

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Title: Which of the following organisms are autotrophs? algae some bacteria plants some protozoans all of the above Author: SDHS Last modified by – PowerPoint PPT presentation

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Title: Which%20of%20the%20following%20organisms%20are%20autotrophs?%20algae%20some%20bacteria%20plants%20some%20protozoans%20all%20of%20the%20above


1
Which of the following organisms are
autotrophs?algaesome bacteriaplantssome
protozoansall of the above
2
The reactions of glycolysis occur in the
mitochondriacytoplasmchloroplastsnucleus
3
The coenzyme electron carriers produced in the
Krebs cycle areATP and ADPPyruvate and acetyl
CoAFADH and NADHNAD and NADH
4
Which of the following is NOT a product of
fermentation?CO2O2EthanolLactate
5
What role does oxygen play in oxidative
respiration?no rolecombines with acetyl CoA
by-product of oxidation of pyruvatefinal
electron acceptor in the electron transport chain
6
During what stage of cellular respiration is the
most ATP synthesized?glycolysisoxidation of
pyruvatechemiosmosisKrebs cycle
7
During the electron transport chain, H are
pumped out of the cellout of the mitochondria
into the cell cytoplasmout of the mitochondrial
matrix into the outer compartment of the
mitochondriaout of the cell cytoplasm into the
matrix of the mitochondria
8
Chemiosmosis generation of ATP is driven by
phosphate transfer through the membrane
sodium/potassium pump difference in H conc on
the two sides of the membrane osmosis and
macromolecules none of the above
9
Energy is derived from all of the following
EXCEPTglycolysisKrebs cycleElectron transport
chainBeta oxidatin
10
The decarboxylation step of oxidizing pyruvate
occurs in the cytoplasmGolgi
bodyribosomemitochondria
11
Light consists of units of energy
calledelectronsphotonsprotonsneutronspigmen
ts
12
Molecules that absorb light are
calledenzymeselectron carriers pigments
photosynthesizersabsorbers
13
The dark reactions of photosynthesis are those
thatconvert chlorophylls into enzymesconvert
enzymes into chlorophyllsconvert water into
hydrogen and oxygenconvert CO2 into reduced
molecules (sugars)only occur in the presence of
nitrogen
14
In dark reactions, when CO2 is added to a
molecule of RuBP the product is citric
acidglucosePGALPGAPyruvate
15
Internal chloroplast membranes are organized into
flattened sacs calledmicrobodiesmitochondriath
ylakoidsvesiclesCalvin Bodies
16
Which part of the chloroplasts contains the
Calvin cycle enzymes?stromathylakoidsgranaenv
elopecristae
17
A method devised by succulent desert plants to
reduce the problem of photorespiration is C3
pathwayCAM metabolismCalvin cycleLight
reactionsNitrogen fixation
18
During what stage of photosynthesis is O2
produced?cyclic photophosphorylationlight
reactions involving photosystem I and IIcarbon
fixationKrebs cycleO2 is not produced during
photosynthesis
19
Which of the following is mismatched?Photosyste
m I uses the P700 molecule in its
photocenterPGA is a 3 carbon compoundCAM
plants open their stomata during the day and
close them at night to avoid photorespirationC4
plants expend ATP to concentrate CO2 in bundle
sheath cells
20
Which of the following is common to both cellular
respiration and the light reactions of
photosynthesis?transfer of electrons to
glucosechemiosmotic formation of ATPoxygen is
one of the byproductsmitochondria are essential
organellesmust have light
21
Diploid individuals have a chromosome number of
N2N3N½ N
22
Chromosomes that are paired are
calledsomatichomozygoushomologoushomoerectus
23
DNA and protein freely floating about in the
nucleoplasm is termed chromatidschromosomeschr
omatinchromatography
24
The site of attachment in chromosomes is called
the centrobarometercentrotidscentromatincentr
omere
25
The pinching off of the cell membrane immediately
following mitosis is calledcytogeneticscytocali
metricscytokinesiscytoplasmic
26
Tetrads line up on the cells equator during what
phase of Meiosis?Prophase IProphase
IIMetaphase IMetaphase II
27
In which phase does the DNA replicate?G1SG2mi
tosiscytokinesis
28
During the cell cycle, the cell spends most of
its time in mitosiscytokinesisinterphasecleav
age
29
Crossing-over results in genetic recombination
by-reducing the original cells chromosome
number by half-mixing half the maternal
chromosomes with half the paternal
chromosomes-permitting the exchange of genetic
material between maternal and paternal chromosomes
30
During mitotic division chromosomes are pulled
apart by kinetochore fibers during what
stage?ProphaseAnaphaseMetaphaseTelophase
31
An allele that can be present but unexpressed
masked isredundantdominantfunctionalrecessi
ve
32
The actual letters or alleles of an individual is
referred to as itsblueprintgenotypephenotypea
llelotype
33
If a single gene has 3 or more alternative forms,
they are calledheterozygotesmultiple
allelesepistatichomozygotes
34
When chromosomes fail to separate during prophase
and one cell gets and extra one while the other
is deprived of one is called.epistasisnon-disju
nctiondisjunctionautosomy
35
Humans who have lost even one copy of an autosome
are calledtetrasomicsmonosomictrisomicsuperso
nic
36
Which of the following represents a test
cross?WW x WwWW x WWWW x wwWw x Ww
37
Let P purple flowers and p white, and T
Tall and t short. What would be the phenotype
of a plant with the genotype PpTt?purple
flowers, tallpurple flowers, shortwhite
flowers, tallwhite flowers, short
38
In a typical Mendel experiment on pea-seed color,
if the dominant yellow seed-bearing plant was
crossed with the recessive green seed-bearing
plant, the F2 generation will show what ratio of
each kind?1 yellow 3 green1 yellow 1 green3
yellow 1 greenseeds with patches of yellow and
greennone of the above
39
Let P purple flowers and p white, and T
tall and t short. Of the 16 possible gamete
combinations in the dihybrid cross, how many in a
hetero X hetero cross would be the phenotype
white, tall?13916
40
In the F2 generation, the 31 phenotypic ratio is
really disguised as a _______ genotypic
ratio12121111240
41
In replication of DNA, the helix is opened and
untwisted byribaseligasedeoxasehelicase
42
Okazaki fragments are used to elongatethe
leading strand towards the replication forkthe
lagging strand towards the replication forkthe
leading strand away from the replication forkthe
lagging strand away from the replication fork
43
In a molecule of DNA, nucleosomes are connected
bytelomereseuchromatinlinker DNAreplication
units
44
The bond connecting one nucleotide with the next
one along the chain is called a CC
bondHydrophobic bondPhosphodiester bondPeptide
bond
45
_________________ prevent the loss of a part of a
DNA molecule by consecutive
discontinuous
synthesis.TelomeresCentromeresHelicasesLigase
s
46
With few exceptions, all nuclei of eukaryotic
cells contain-genes to specify the portion of
the organism in which they are found-all the
genetic information needed for growing the whole
organism-all of the chromosomes except sex
chromosomes which are in sperm and egg-single
stranded DNA
47
Which of the following statements are true in the
Hershey-Chase experiments?-DNA was labeled with
radioactive phosphorus-Protein was labeled with
radioactive sulfur-The virus infected bacteria
showed radioactive phosphorus-The virus infected
bacteria showed radioactive sulfur-a, b, and c
are correct
48
The fact that some viruses use DNA to direct
their heredity was demonstrated by-inding
radioactive sulfur from a bacteriophage in a
bacterium-finding radioactive phosphorus from a
bacterium in a bacteriophage-finding radioactive
phosphorus from a bacteriophage in a
bacterium-finding radioactive sulfur from a
bacterium in a bacteriophage
49
The identification of the transforming principle
proved that dead bacteria are as lethal as live
onesStreptococcus pneumoniae evolved from
PneumococcusGenetic information is contained in
DNAThere is no protein in chromosomes
50
Because of its tight packing, ___________________
is not readily accessible to transcription.
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