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WorksheetsMP2 Benchmark Review Quiz
Total questions: 69
Worksheet time: 35mins
In the diagram below, which letters indicate the substances needed by the leaf in order to carry out the process of aerobic cellular respiration?
A & C
C & D
B & C
B & D
The track coach has team members run up and down the bleachers for 10 minutes as a warmup. By the end of the 10 minutes, the students are breathing heavy and experiencing muscle soreness. Which substance is likely present and causing the muscle soreness?
Alcohol
Lactic Acid
Glucose
Citric acid
Within which organelles are most of the 36 ATP produced?
Chloroplast
Ribosome
Mitochondria
Nucleus
In animal cells, much of the carbon dioxide produced by cellular respiration is…
excreted as waste
used for energy
converted to sugar
stored in vacuoles
During the process of aerobic respiration, energy stored in food is transferred to
Glucose
ATP
DNA
Enzymes
In aerobic respiration, the hydrogen atoms from nutrient molecules is
Changed into DNA molecules
Removed as H2 by the lungs
Combines with carbon dioxide and forms glucose
Combined with oxygen and forms water
The substance indicated by the letter X is
O2
H20
ATP
CO2
In the reactions that occur during aerobic respiration, the final hydrogen acceptor is
Oxygen
Carbon Dioxide
Glucose
Ammonia
The process of glycolysis results in a net gain of 2 ATP molecules per molecule of glucose oxidized. This process also produces
citric acid
pyruvic acid
water
glucose
When molecules of glucose are fermented by yeast, the products formed include molecules of
lactic acid
oxygen
glycogen
alcohol
Cellular respiration is carried out by which of the following?
all living organisms all of the time
animals but not plants
animals all of the time but plants only at night
heterotrophs but not autotrophs
A scientist is conducting an experiment using elodea, a green aquatic plant.
Which of the following changes to the experiment would most likely increase the amount of oxygen being collected at the top of the test tube?
Use fewer plants
Replace the beaker with a larger container
Move the beaker closer to the light source
Reduce the amount of water in the beaker
In most plants, the process of photosynthesis occurs most rapidly when the plants are exposed to equal intensities of
Green and red light
Yellow and orange light
Red and blue light
Green and yellow light
An important function of chlorophyll during the process of photosynthesis is
Absorbing certain wavelengths of light
Absorbing and storing water in root cells
Converting water into carbon dioxide
Converting chemical energy to light energy
In which part of the chloroplast does phase 1 occur?
Stroma
Thylakoid
Matrix
Cristae
The process represented by the chemical equation occurs within the cells of which organism?
a human
a grasshopper
a mushroom
a bean plant
Which of the following statements correctly describes the processes of photosynthesis and cellular respiration?
Photosynthesis and cellular respiration occur in the same organelle.
Photosynthesis and cellular respiration are performed by all organisms
Photosynthesis produces carbon dioxide, and cellular respiration uses carbon dioxide.
Photosynthesis stores energy for cells, and cellular respiration releases energy for cells
Which substances are represented by A and B?
A - oxygen, B - carbon dioxide
A - carbon dioxide, B - oxygen
A - nitrogen, B - carbon dioxide
A - phosphorus, B - nitrogen
In the graphic organizer shown below, which molecule belongs in area X?
Lactic Acid
Carbon Dioxide
Water
Oxygen
Which molecule belongs in area A in the above diagram?
DNA
PGAL
CO2
C6H1206
Based on the above diagram, in which organelle do the reactions that belong in areas B and C occur?
Mitochondria
Chloroplast
Ribosome
Endoplasmic Reticulum
Which two processes are involved in the cycling shown in the diagram?
succession and transpiration
photosynthesis and cellular respiration
nitrogen fixation and carbon fixation
Evaporation and condensation
Mallory has four aquatic plants of the same size and species. She submerges each plant in a separate beaker filled with 200 mL of water. She then sets each beaker under a different intensity of light. Mallory observes that, of the four plants, the plant in the beaker under the most intense light gives off the most gas bubbles in a 20 min period. Which of the following statements best explains Mallory’s observations?
Cells decompose most quickly under the most intense light.
Water evaporates from plants fastest under the most intense light.
Photosynthesis occurs at the highest rate under the most intense light.
Gases in the leaves of plants expand most under the most intense light.
Which molecule in plant cells first captures energy from sunlight?
Water left the lettuce cells by diffusion.
Water entered the cells of the lettuce by osmosis.
Osmosis caused salts to enter the lettuce cells.
Salts in the leaf caused water to leave the cells
Part of a food web for a marine kelp forest is shown.
Which of the following statements correctly describes the transfer of energy that initially enters this system?
The sea urchin gets energy from the sea otter.
The shark receives most of the energy that enters the ecosystem.
The crab transfers less energy to the next trophic level than does the rockfish.
The kelp converts energy into a form that can be used by other organisms.
The figure represents the flow of food energy through a system. In an experiment, chickens were fed grain that contained a chemical marker in its proteins. The presence of the marker can be detected in organisms.
Which of the following is the most reasonable prediction from this experiment?
The marker will only be found in the grain.
Both chickens and wolves will have the marker.
Wolves will have the marker, but chickens will not.
The marker will only be found in the animals' wastes
There is a limit to how large any given population can grow. Which of the following statements best explains why a population must eventually stop growing?
A low female‑to‑male ratio develops in the population as it grows.
Old individuals outnumber juveniles in the population as it grows.
The resources available are fully used by the population as it grows.
Natural selection changes the gene pool of the population as it grows.
The table below shows data on reproduction for mouse populations at various population densities. Based on the data, which of the following statements best describes an effect of population density on mouse populations?
High population density decreases the birth rate.
High population density decreases the death rate.
High population density increases the male to female ratio.
High population density increases the number of successful matings.
Which kind of population would produce the growth curve shown above?
Organisms reach their carrying capacity quickly
Organisms have unlimited resources
Organisms reproduce slowly due to minimal resources
Organisms have run out of renewable resources
One advantage of biodiversity in an ecosystem is that it....
Guarantees that the largest animal will dominate an area
Ensures a large amount of identical genetic material
Develops relationships between organisms that are always positive over long periods of time
Increases the chance that some organisms will survive a major change in the environment
What does K represent in the graph below?
Carrying Capacity
Exponential Growth
Equivalence point
biodiversity
Reef-building coral are marine animals with single-celled algae living in their tissues. The coral provides protection for the algae and the algae provides food for the coral. Which of these statements best explains what would happen to the coral if the algae die?
The coral would grow well because it does not have a competitor.
The coral would die because it needs the food produced by the algae.
The coral would grow well because it does not have a parasite.
The coral would die because it cannot produce food for the algae.
Based on the food web shown below, which of the following options lists all the predators?
Cougars only
Cougars and snakes
Cougars, snakes and shrews
Cougars, snakes, shrews and mice
Based on the above food web, how would you describe the relationship between the mice and the insects?
parasite-host
Predator-prey
Mutualism
Commensalism
Based on the above food web, which of the following provides energy for all the other organisms?
snakes
insects
grasses
mice
Which of the following organisms in this food web obtains energy from both producers and consumers?
Anchovy
Mysid shrimp
Weakfish
Sand shrimp
The diagram above illustrates the relationships between the organisms in a certain pond. In addition to sunlight, another factor needed for this to be a self-sustaining ecosystem is the presence of....
Producers
Primary Consumers
Decomposers
High-Level Consumers
Bacteria living in nodules on the roots of legumes have the ability to fix atmospheric nitrogen into a water-soluble form that plants can use. The bacteria absorb sugar from the plants’ roots. Which describes the relationship between the bacteria and the legume plants?
Commensalism
mutualism
parasitism
predation
The use of certain chemicals by humans has caused holes to form in the Earth’s ozone layer. This allows more ultraviolet (UV) light to reach the oceans. Scientists are concerned that an increase in UV light will start killing microscopic marine algae. Which of these statements describes how the ocean food web would be affected by a large decrease in microscopic marine algae?
There will be fewer marine animals because there will be fewer producers.
There will be no change because the algae are very small.
There will be more consumers because the UV light kills producers.
There will be fewer consumers because the UV light kills decomposers
An ecosystem contains organisms interacting with each other and their physical environment. Which of these is the best indicator of a healthy ecosystem?
There are few decomposers.
There are many different species.
There are few herbivores.
There is a large population of only one species
The graph shows the growth of a Daphnia population in a 420-liter aquarium. According to these data, what was the approximate Daphnia population by the end of the second day?
40
60
80
100
The atmosphere contains about 80% nitrogen gas, nitrogen in this form cannot be used by plants. Which of the following processes converts atmospheric nitrogen into a useful form for plants?
nitrogen fixation
transpiration
nitrogen decomposition
Photosynthesis
In the past 100 years, levels of atmospheric carbon dioxide have increased as a result of the burning of fossil fuels. Other processes in the carbon cycle have absorbed some of the carbon released by this combustion.Which of the following most likely have absorbed excess carbon released by combustion?
animals
plants
glaciers
rocks
Which of the following human activities reduces biodiversity?
prohibiting hunting in wildlife preserves
taking tissue samples from members of endangered species
planting only native grass species to prevent erosion beside highways
planting only red pine trees to replace native hardwood forests cut for lumber
In July, a student tested the soil in two plots and calculated the concentration of nitrogen compounds present in each plot. The student then planted 20 seedlings in the first plot and allowed them to grow. Nothing was planted in the second plot. The student tested the soil in both plots again after one month. The concentration of nitrogen compounds had decreased in the first plot but had remained the same in the second plot. Which of the following best explains the decrease in nitrogen compounds in the first plot?
The nitrogen compounds had broken down into elements.
The nitrogen compounds escaped through air pockets created by the seedlings’ roots.
The nitrogen compounds had evaporated because of the warm summer temperatures
The nitrogen compounds were absorbed by the seedlings for their growth
Which of the following human activities might explain the data shown in this graph?
Increased deforestation and decreased burning of fossil fuels.
Increased deforestation and increased burning of fossil fuels.
Reduced deforestation and increased burning of fossil fuels.
Reduced deforestation and decreased burning of fossil fuels.
Which of the following events is taking place, demonstrating the consequences of global warming?
Organisms have shifted habitats
Ocean temperatures are becoming cooler
Obtaining food has become easier for most organisms
Biodiversity is increasing across the biosphere
In one step of the carbon cycle, a person exhales a molecule of carbon dioxide into the atmosphere. Which of the following is most likely to happen next to the molecule of carbon in this molecule?
It may be consumed as a fossil fuel is burned
It may become part of a protein in an animal
It may become part of a sugar in a plant
It may be decomposed into carbon and oxygen by a bacterium
An increase in the use of fossil fuels has increased the amount of carbon dioxide in the earth’s atmosphere. Which of these is a direct result of the increased amount of carbon dioxide in the atmosphere?
An increase in acid rain
An increase in severe storms
An increase in global warming
An increase in the rate of ozone depletion
Deforestation may help nations develop, but it is ecologically destructive in the long run because…
Carbon dioxide levels will increase
Soil accumulation will occur
Severe rain storms will develop
Carbon dioxide levels will decrease
Which statement best describes the flow of energy and the movement of chemical compounds in an ecosystem?
Energy flows into living organisms and remains there, while chemical compounds are transferred from organism to organism
Chemical compounds flow in one direction in a food chain and energy is produced.
Energy is transferred from organism to organism in a food chain and chemical compounds are recycled
Energy flows out of living organisms and is lost, while chemical compounds remain permanently inside organisms
Earth has undergone some catastrophic changes from time to time. Which of these most likely explains why life on Earth continued following these catastrophes?
A wide diversity of species existed
Dominant species had a slow mutation rate
A strong species had many different characteristics.
Many species filled the same niche.
Scientists are investigating the cause of the large increase in atmospheric carbon dioxide concentration since about 1800. Which of the following provides the best explanation for the increase?
eruptions of large volcanoes
use of fossil fuels by humans
natural fluctuations of climate
photosynthesis by phytoplankton
Methyl mercury is a toxic substance that can harm the nervous system. Some fish are contaminated with high levels of methyl mercury. In many places, these fish are an important food source. Experiments are being conducted to determine how many meals of contaminated fish can be safely consumed. The table below shows the concentration of methyl mercury in the fish and the number of meals that can be safely consumed per month.
The table shows the mean mercury concentrations in fish.
common carp
channel catfish
largemouth bass
yellow perch
Major natural events, such as volcanic eruptions, significantly change the environmental conditions of the areas where the events occur. What happens to local populations that are unable to adapt to the new conditions or to move to other areas?
They become extinct.
They undergo rapid mutations.
They develop a scavenger lifestyle until conditions change.
They interbreed with the populations of other species that have remained there.
A student set up a terrarium, watered the soil, and covered the terrarium tightly with a lid. The next day, the student observed water droplets on the inside of the lid. The droplets provide evidence that which of the following steps of the water cycle had occurred in the terrarium?
runoff and evaporation
precipitation and runoff
evaporation and condensation
condensation and precipitation
The diagram shown represents a microscopic structure observed during the process of cell division. The letter A indicates…
Centromere
Centrioles
Chromatin
Nucleus
Normal mitotic cell division results in each daughter cell having
Half the number of chromosomes as the parent cell
The same number and kinds of chromosomes as the parent cell
The same number, but different kinds of chromosomes as the parent cell
Twice the number of chromosomes as the parent cell
The diagram shown represents stages of cell division. Which is the correct sequence of these stages?
A → B → C → D
B → C → D → A
C → B → D → A
D → B → A → C
What would most likely occur if mitosis occurred without being followed by cytokinesis?
Two cells, each with one nucleus
Two cells, each without a nucleus
One cell without a nucleus
One cell with two identical nuclei
The cell in the diagram below illustrates a stage of mitotic cell division. Letter B indicates the
Paired chromosomes
cell plate
centrioles
endoplasmic reticulum
The phase of mitosis where chromosomes move away and are pulled apart by spindle fibers to opposite sides of the cell.
prophase
metaphase
anaphase
telophase
Which phase of mitosis comes NEXT?
prophase
metaphase
anaphase
telophase
In which phase of the eukaryotic cell cycles does the nucleus and all its contents divide?
G1 phase
M phase
S phase
G2 phase
The substage of the cell cycle in which the cell copies its DNA in preparation for cell division is…
G1 phase
M phase
S phase
G2 phase
Immediately following cytokinesis, which phase of the cell cycle are the daughter cells in?
G1 phase
M phase
S phase
G2 phase
The substage of the cell cycle in which organelles are duplicated and the cell prepares for cell division is…
G1 phase
M phase
S phase
G2 phase
The diagram below provides information about a carrot cell. A carrot cell contains 18 chromosomes. Which of the following diagrams illustrates the correct number of chromosomes in new cells produced by mitosis?
How ready are you for this benchmark
bruhhhh...i'm gonna take the L
If i try i might pass
i'm better than I thought
This is light work. Just give me my A
