Download Which of the following organisms are autotrophs? algae

Which of the following
organisms are autotrophs?
algae
some bacteria
plants
some protozoans
all of the above
The reactions of glycolysis
occur in the
mitochondria
cytoplasm
chloroplasts
nucleus
The coenzyme electron carriers
produced in the Krebs cycle are
ATP and ADP
Pyruvate and acetyl CoA
FADH and NADH
NAD and NADH
Which of the following is NOT a
product of fermentation?
CO2
O2
Ethanol
Lactate
What role does oxygen play in
oxidative respiration?
no role
combines with acetyl CoA
by-product of oxidation of pyruvate
final electron acceptor in the
electron transport chain
During what stage of cellular
respiration is the most ATP
synthesized?
glycolysis
oxidation of pyruvate
chemiosmosis
Krebs cycle
During the electron transport chain,
H+ are pumped
out of the cell
out of the mitochondria into the cell
cytoplasm
out of the mitochondrial matrix into the
outer compartment of the mitochondria
out of the cell cytoplasm into the matrix
of the mitochondria
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
Energy is derived from all of the
following EXCEPT
glycolysis
Krebs cycle
Electron transport chain
Beta oxidatin
The decarboxylation step of
oxidizing pyruvate occurs in the
cytoplasm
Golgi body
ribosome
mitochondria
Light consists of units of energy
called…
electrons
photons
protons
neutrons
pigments
Molecules that absorb light are
called
enzymes
electron carriers
pigments
photosynthesizers
absorbers
The dark reactions of
photosynthesis are those that
convert chlorophylls into enzymes
convert enzymes into chlorophylls
convert water into hydrogen and
oxygen
convert CO2 into reduced molecules
(sugars)
only occur in the presence of nitrogen
In dark reactions, when CO2 is
added to a molecule of RuBP
the product is
citric acid
glucose
PGAL
PGA
Pyruvate
Internal chloroplast membranes
are organized into flattened
sacs called
microbodies
mitochondria
thylakoids
vesicles
Calvin Bodies
Which part of the chloroplasts
contains the Calvin cycle
enzymes?
stroma
thylakoids
grana
envelope
cristae
A method devised by succulent
desert plants to reduce the
problem of photorespiration is
C3 pathway
CAM metabolism
Calvin cycle
Light reactions
Nitrogen fixation
During what stage of
photosynthesis is O2 produced?
*cyclic photophosphorylation
*light reactions involving
photosystem I and II
*carbon fixation
*Krebs cycle
*O2 is not produced during
photosynthesis
Which of the following is
mismatched?
*Photosystem I – uses the P700 molecule in
its photocenter
*PGA is a 3 carbon compound
*CAM plants – open their stomata during the
day and close them at night to avoid
photorespiration
*C4 plants – expend ATP to concentrate
CO2 in bundle sheath cells
Which of the following is common
to both cellular respiration and the
light reactions of photosynthesis?
transfer of electrons to glucose
chemiosmotic formation of ATP
oxygen is one of the byproducts
mitochondria are essential
organelles
must have light
Diploid individuals have a
chromosome number of
N
2N
3N
½N
Chromosomes that are paired
are called
somatic
homozygous
homologous
homoerectus
DNA and protein freely floating
about in the nucleoplasm is
termed
chromatids
chromosomes
chromatin
chromatography
The site of attachment in
chromosomes is called the
centrobarometer
centrotids
centromatin
centromere
The pinching off of the cell
membrane immediately
following mitosis is called
cytogenetics
cytocalimetrics
cytokinesis
cytoplasmic
Tetrads line up on the cell’s
equator during what phase of
Meiosis?
Prophase I
Prophase II
Metaphase I
Metaphase II
In which phase does the DNA
replicate?
G1
S
G2
mitosis
cytokinesis
During the cell cycle, the cell
spends most of its time in
mitosis
cytokinesis
interphase
cleavage
Crossing-over results in genetic
recombination by
-reducing the original cell’s
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
During mitotic division
chromosomes are pulled apart
by kinetochore fibers during
what stage?
Prophase
Anaphase
Metaphase
Telophase
An allele that can be present but
unexpressed “masked” is
redundant
dominant
functional
recessive
The actual letters or alleles of
an individual is referred to as its
blueprint
genotype
phenotype
allelotype
If a single gene has 3 or more
alternative forms, they are
called
heterozygotes
multiple alleles
epistatic
homozygotes
When chromosomes fail to
separate during prophase and one
cell gets and extra one while the
other is deprived of one is called.
epistasis
non-disjunction
disjunction
autosomy
Humans who have lost even
one copy of an autosome are
called
tetrasomics
monosomic
trisomic
supersonic
Which of the following
represents a test cross?
WW x Ww
WW x WW
WW x ww
Ww x Ww
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, tall
purple flowers, short
white flowers, tall
white flowers, short
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 green
1 yellow: 1 green
3 yellow: 1 green
seeds with patches of yellow and
green
none of the above
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?
1
3
9
16
In the F2 generation, the 3:1
phenotypic ratio is really
disguised as a _______
genotypic ratio
1:2:1
2:1:1
1:1:2
4:0
In replication of DNA, the helix
is opened and untwisted by
ribase
ligase
deoxase
helicase
Okazaki fragments are used to
elongate
the leading strand towards the
replication fork
the lagging strand towards the
replication fork
the leading strand away from the
replication fork
the lagging strand away from the
replication fork
In a molecule of DNA,
nucleosomes are connected by
telomeres
euchromatin
linker DNA
replication units
The bond connecting one
nucleotide with the next one
along the chain is called a
C=C bond
Hydrophobic bond
Phosphodiester bond
Peptide bond
_________________ prevent the
loss of a part of a DNA molecule by
consecutive
discontinuous synthesis.
Telomeres
Centromeres
Helicases
Ligases
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
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
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
The identification of the
transforming principle proved that
dead bacteria are as lethal as live ones
Streptococcus pneumoniae evolved
from Pneumococcus
Genetic information is contained in
DNA
There is no protein in chromosomes
Because of its tight packing,
___________________ is
not readily accessible to
transcription.