Download Eoc by essential standard.

EOC BY ESSENTIAL STANDARD.
A runner is competing in a 10km track meet and just before completing the race, the
runner is nearly out of breath and the energy needed to finish the race. Which cell
structure is most affected by the lack of energy?
A. Nucleus
B. Ribosome
C. Mitochondria
D. Plasma Membrane
C. MITOCHONDRIA
What can be used to distinguish between eukaryotic and prokaryotic cells?
A. Only eukaryotic cells come from preexisting cells.
B. Only prokaryotic cells are the smallest unit of living organisms.
C. Only prokaryotic cells contain ribosomes.
D. Only eukaryotic cells contain membrane bound organelles.
D. ONLY EUKARYOTIC CELLS CONTAIN MEMBRANE
BOUND ORGANELLES.
Explain how many of the cells in an individual can be very different from one another
in terms of structure and function, even though they descended from a single cell and
thus have essentially identical genetic material.
DNA is the same in every cell within an organism which is obtained when the egg
cell and sperm cell unite. Cell differentiate as different parts of the DNA is turned
on and turned off. The parts that are turned on and off have to do with the
environmental influence of cells around the cell
Nerve cells and bone cells are specialized cells that descend from the same single
cell (fertilized egg). Which statement best explains how each type of cell results in a
different structure with a specialized function?
A. Nerve cells and bone cells begin with the same structure; however, bone cells
harden overtime.
B. Nerve cells and bone cells receive different DNA that determines the structure
and function that each will perform.
C. Nerve cells and bone cells receive the same DNA; however only specific parts of
the DNA are activated in each cell.
D. Nerve cells and bone cells receive the same DNA; however, bone cells receive
more to make the protective outer covering.
C. NERVE CELLS AND BONE CELLS RECEIVE TE
SAME DNA; HOWEVER ONLY SPECIFIC PARTS OF
THE DNA ARE ACTIVATED IN EACH CELL
The diagram below shows the same type of molecule on side A and side B. Over time
what is the likely result?
Side A
A. More molecules will be on side B than side A.
B. More molecules will be on side A than side B.
C. Equal number of molecules will be on side A&B.
D. All of the molecules will move towards the membrane.
Side B
C. EQUAL NUMBER OF MOLECULES WILL BE ON
SIDE A & B
A student observes a typical onion root tip where many of the cells have just
successfully completed mitosis. Which statement best explains what must have
happened to result in cells that only have half as many chromosomes as all of the
other cells in the same section of the tip?
A. The parent cell completed mitosis after undergoing interphase.
B. The parent cell completed mitosis after undergoing cytokinesis.
C. The parent cell completed mitosis before undergoing cytokinesis.
D. The parent cell completed mitosis before undergoing interphase.
D. THE PARENT CELL COMPLETED MITOSIS BEFORE
UNDERGOING INTERPHASE
Cell cycle checkpoints are proteins that monitor and regulate the progress of the cell
cycle in eukaryotic cells. Which statement best describes what would most likely
happen if a cell is permitted to progress to mitosis without the preparation stage of
interphase?
A. The new cells would have all of the organelles except the nucleus.
B. The new cells would have all of the organelles except the mitochondria.
C. The number of chromosomes in the daughter cells would be the same as the
number of chromosomes in the parent cell.
D. The number of chromosomes in the daughter cells would be different from the
number of chromosomes in the parent cell.
D. THE NUMBER OF CHROMOSOMES IN THE
DAUGHTER CELLS WOULD BE DIFFERENT FROM THE
NUMBER OF CHROMOSOMES IN THE PARENT CELL.
A single celled organism is placed in fresh water. The contractile vacuole pumps
excess water out of the cell. How does this action help the organism survive?
A. It helps the organism maintain a stable internal environment.
B. It helps the organism communicate with other cells.
C. It helps the organism reproduce.
D. It helps the organism convert energy.
A. IT HELPS THE ORGANISM MAINTAIN A STABLE
INTERNAL ENVIRONMENT
The diagram shows a glass container covered with plastic.
The diagram shows a thriving ecosystem. Analyze the flow of energy and cycling of matter between the environment and the organisms.
Use your analysis of the system and briefly teel how carbon is related to the flow of energy and cycling of matter between the environment and the organisms.
In your answer include the following information:
Name the carbon compound that is exchanged between pants and their environment and tell how it is significant to maintaining the health a stability of the ecosystem.
Describe how plants use carbon from the atmosphere to create more complex molecules.
Describe how animals that eat plants change these molecules and return carbon to the atmosphere.
Describe the direction of flow of energy through the ecosystem.
Radiant energy from the light allows plants, which are autotrophs or producers to convert
carbon dioxide and water into glucose, an organic form of chemical energy, and oxygen
which is released into the air through the stomates underneath the leaf. In plants and
plant-like protists photosynthesis occurs in the chloroplast. The process of photosynthesis
allows not only the plants to have food but also heterotrophs to have a chemical form of
energy, glucose, because they must consume there food. Because only 10% of the energy
moves to the next trophic level due to organisms high usage of energy in metabolism and
maintaining homeostasis, there always must be more autotrophs than heterotrophs for an
ecosystem to be in balance.
Heterotrophs, autotrophs, and decomposers (a type of heterotroph) must then break down
glucose to make energy through the process of cellular respiration. Aerobic respiration,
which requires oxygen made in photosynthesis is the most efficient form of respiration
because glucose is broken all the way down into carbon dioxide, water, and 36-38 ATP.
Cellular respiration occurs in the mitochondria of eukaryotic organisms. Anaerobic
respiration occurs when oxygen is not present and only releases 2ATP. The carbon
dioxide that is released by the animal is then diffused into the leaf so that more
photosynthesis can take place. Decomposers in the soil break down dead organisms
releasing carbon dioxide into the atmosphere as well and recycling carbon.
If more snails are added to the ecosystem, what effect
would that have on the plants in the container?
Because snails are consumers, they would eat the
plants decreasing the population. If two many
snails are added to the ecosystem, food resources
which are the plants would become limiting factors.
Competition would occur between the snails.
Carrying capacity would be reached in the
ecosystem.
Characteristics
Insect-Pollinated Plants
Wind and Water Pollinated
Plants
Appearance
Often colorful
Plain
Reproductive Parts
Sometimes hidden
Exposed
The differences in the above characteristics of flower species most likely resulted
from
A. Adaptations in response to different environmental factors.
B. Parasitism which did not harm the host species.
C. Defensive mutations allowing concealment of species.
D. Mutualism between different plant species.
A. ADAPTATIONS IN RESPONSE TO DIFFERENT
ENVIRONMENTAL FACTORS.
During extreme conditions like drought or high heat, frogs will dig a hole in the soil
and bury themselves in the soil and bury themselves. Sometimes frogs will shed a
layer of skin, wrap it around themselves for more protection, and wait for rain. How
does this adaptation aid the frogs?
A. This adaptation aids in the survival of frogs.
B. This adaptation attracts other frogs for mating.
C. This adaptation helps the frog find food.
D. This adaptation aids in the growth of frogs.
A. THIS ADAPTATION AIDS IN THE SURVIVAL OF
FROGS.
Darwin’s studies of finches on the Galapagos Islands suggest that the finches’ differences in
beak structure were most directly due to
A. Acquired characteristics in the parent finches
B. Mating behaviors of the different finch species
C. The size of the island where the finches live
D. Adaptations of the finches to different environments
D. ADAPTATIONS OF THE FINCHES TO DIFFERENT
ENVIRONMENTS.
Below is a picture of a Viceroy and a Monarch butterfly.
To birds, the Monarch butterfly looks like the Viceroy butterfly. The Monarch butterfly is
distasteful to birds; however, the Viceroy butterfly is not. Once a bird tastes a Monarch
butterfly, it will not attempt to eat a Viceroy butterfly. How is this adaptation an
advantage to the Viceroy butterfly?
A. This adaptation aids in the survival of the Viceroy butterfly.
B. This adaptation attracts other Viceroy butterflies for mating.
C. This adaptation helps the Viceroy butterfly find food.
D. This adaptation aids in the growth of the Viceroy butterfly.
A. THIS ADAPTATION AIDS IN THE SURVIVAL OF
THE VICEROY BUTTERFLY.
Classify the relationship between flowering plants and bees, where the plant
provides the bee with food and the bee spreads pollen for the plant.
A. Commensalism
B. Mutualism
C. Parasitism
D. Predation
B. MUTUALISM
The graph below represents the changes in deer population on an island over time.
Identify major areas on the graph that represent population changes and discuss reasons
theses changes have occurred.
Initially population growth on the island is slow even
though there are plenty of resources because the number
of deer reproducing is low. Exponential growth occurs
during the steep sloped section of the graph. During this
time there are plenty of biotic and abiotic factors to
sustain the population. The graph reaches a peak in
which resources such as food, water, space, even disease
impact the population. Competition occurs because the
organisms have the same habitat and niche. The graph
levels off at carrying capacity, the highest number of
organisms that an ecosystem can maintain.
Which of the following has contributed most to the overall warming of the Earth’s
atmosphere?
A. The burning of fossil fuels
B. The depletion of the ozone
C. The occurrence of acid rain
D. The melting of the polar ice caps.
A. THE BURNING OF FOSSIL FUELS
What benefit does recycling provide for the biosphere?
Recycling allows reuse of limited resources. Without
recycling there would be extensive amounts of trash which
are problematic as well as lack of resources like aluminum,
plastic, and glass which are non-biodegradable.
Biodegradable materials allow carbon, nitrogen, and
phosphorous to be returned to the soil and atmosphere by
fungi and bacteria, enriching soil allowing for better
producer growth.
If a strand of DNA is CTGCAT, what is the sequence of nucleotides in the
complementary strand?
A. GACGTA
B. CTGCAT
C. AGTACG
D. GACGUA
A. GACGTA
This chart represents amino acids that are coded from different combinations of mRNA
codons.
Which amino acid sequence can be coded from the DNA sequence CAG TAG CGA?
A. Valine-Isoleucine-Glycine
B. Valine-Aspartic Acid-Alanine
C. Valine-Isoleucine-Alanine
D. Valine-Phenylalanine-Alanine
C. Valine-Isoleucine-Alanine
Which of the following changes in DNA is likely to have the greatest effect on the
resulting peptide?
A. In a strand of DNA, one C is changed to a T
B. A “G” is inserted at the beginning of a gene
C. A “G” is inserted at the end of a gene
D. In a strand of DNA, one T is changed to a C
B. A “G” IS INSERTED AT THE BEGINNING OF A
GENE
Why is the process of meiosis important to sexual reproduction?
A. It provides genetic variation in offspring.
B. It doubles the number of chromosomes in offspring.
C. It reduces the number of alleles from parent to offspring.
D. It produces a hybrid of all genetic traits in offspring.
A. IT PROVIDES GENETIC VARIATION IN
OFFSPRING.
A parent with Type A blood and a parent with Type O blood have a child. Which
of the following is a possible genotype of their offspring?
A. IAIA
B. IAIB
C. IBi
D. ii
D. ii
Why do identical twins become less alike as they grow older?
A. Because the environment plays a role in influencing individuals
B. Because the genetic makeup of the individuals changes
C. Because the individuals’ cells undergo mitosis
D. Because the number of recessive alleles exceeds the number of dominant alleles.
A. BECAUSE THE ENVIRONMENT PLAYS A ROLE IN
INFLUENCING INDIVIDUALS
Himalayan rabbits carry the C gene, which is required for the development of pigments in
the fur, skin, and eyes. Specifically, the C gene is maximally active from 15ᵒC to
25ᵒC(Figure 1)and inactive above 35ᵒC (Figure 2). This gene expression produces rabbits
with a distinctive coat coloring.
Below is a picture of two Himalayan rabbits.
Why do these Himalayan rabbits exhibit different colors of fur?
A. The environment determines whether the gene for cuf pigmentationis expressed.
B. The genetic makeup of the rabbits change
C. The rabbit’s color changed in order to attract a mate.
D. The rabbit’s cells undergo mitosis.
A. THE ENVIRONMENT DETERMINES WHETHER
THE GENE FOR FUR PIGMENTATION IS EXPRESSED
The diagram shows DNA fingerprinting from a daughter horse, the mother horse, and
four possible fathers. Which horse is most likely the father?
A. Horse 1
B. Horse 2
C. Horse 3
D. Horse 4
C. HORSE 3
How is the process of gene therapy used to treat cystic fibrosis?
A. By replacing the abnormal gene with a copy of the normal gene.
B. By removing a portion of the abnormal gene
C. By adding a nitrogen base to the beginning of the DNA sequence
D. By inducing a mutation.
A. BY REPLACING THE ABNORMAL GENE WITH A
COPY OF THE NORMAL GENE
Should there be laws to regulate stem cell research? Justify your answer.
Different things you can discuss would be embryonic vs. adult stem cells, Potential for
disease because of not being able to control the cell cycle once inserted into the new
organism, do your stem cells belong to once they are in the lab, are they available
for research at this point, are they available for use to people that you are a close
match to
Species A and Species B share similarities in DNA sequence. What would this suggest about
their evolutionary relationship?
A. Species A developed before species B.
B. Species A and B share s recent common ancestor.
C. Species A and B are unrelated.
D. Species B developed before species A.
B. SPECIES A AND B SHARE A RECENT COMMON
ANCESTOR.
During the Industrial Revolution, there were two variations of English Peppered Moths, those
with light color and those with dark color. The soot from the factories covered the trees. Data
was collected to measure the percentage of each type of moth in the area. It was noted that
the percentage of dark colored moths increased over time, while the percentage of light
colored moths decreased. What is the likely explanation for this change?
A. The presence of a mutation changed the color of the English Peppered Moths.
B. The presence of the dark colored variation increased the likelihood for survival for the
English Peppered Moths
C. The presence of the light colored variation increased the likelihood for survival of the
English Peppered Moths
D. The presence of an acquired trait changed the color of the English Peppered Moths.
B. THE PRESENCE OF THE DARK-COLORED VARIATION
INCREASED THE LIKELIHOOD FOR SURVIVAL OF THE
ENGLISH-PEPPERED MOTHS.
Why are incidences of sickle cell anemia more common in areas known for high
occurrence of malaria?
Sickle cell anemia is more common in areas known to have malaria because of
stabilizing selection. People that are carriers of the trait for sickle cell, or are
heterozygous for the trait, do not get malaria because the sporozoan protist will not
grow in sickled cells. When two heterozygous individuals are crossed the offspring
have a 25% chance of getting sickle cell, a 50% chance of being immune to malaria
and a 25% chance of not having sickle cell but being able to get malaria.
A researcher sprays a new pesticide on thousands of insects of the same species that
live in a large field. A few of the insects survive. What can be concluded by the
researcher?
A. The species of insects will likely become resistant to the pesticide.
B. The ideal interval between the first and second applicztio s of the pesticide
should be increased.
C. The pesticide has no effect on the species.
D. The concentration of the pesticide was too weak.
A. THE SPECIES OF INSECTS WILL LIKELY
BECOME RESISTANT TO THE PESTICIDE.
How did organisms like the euglena, which are heterotrophic and autotrophic change
the classification system?
Protists fall into 3 categories: animal like , plant like and fungal like. Euglena are
unicellular and eukaryotic so they fall into the kingdom protista. Because they have
flagella and are heterotrophic, they are more like the animal like protists which have
a phylum of their own. Because they have chloroplasts and can photosynthesize they
are also autotrophic which makes them more plantlike which has a phylum all its own.
They have to have their own class because they take on characteristics of both
organisms but because they move, they are listed as a protozoan.
Using the key provided, drawing three can be identified as which bird?
1a. Larger than 40cm………………………………………..2
1b. Not larger than 40 cm……………………………………4
2a. Hooked beak……………………………………………..3
2b. Beak not hooked………………………………………….Phasianus colchicus
3a. Feathers over eyes that look like ear……………………....Bubo virgianus
3b. No feathers that look like ears…………………………Haliaeetus leucocephalu
4a. Head one solid color of feathers…………………………….5
4b. Head not solid color of feathers ………………………… Colinus virginianus
5a. Bill Flat…………………………………………………….Anus platyrhynchos
5b. Bill pointes……………………………………………… Archiliachus colubris
A. Bubo virginianus
Based upon the dichotomous key above, which two organisms are more closely
related? Explain your reasoning.
Anas platyrhynchos and Archilochus colubris have the most similar characteristics only
being separated by the shape of their bill.