CAPT Alternate Assessment
1. Which of the following would best describe the independent variable for Group A’s experiment? Please see data table 1 below. Please note: paper towel 1= towel A, 2=B, etc.
The paper towel number
The amount of water absorbed
The length of each paper towel
The mass of the paper towel
Data Table 1
2. Which of the following conclusions is best supported by the data on Group B’s graph (below)
Paper towels B and D absorbed different amounts of water
Paper towel brand A is best at absorbing water
None of the above choices are valid conclusions
Paper towel brand C is best at absorbing water
Group B Graph
3. The graph indicates that the bottle deposit bill has: (see graph 2 below)
Its effect cannot be determined from the graph
Increased roadside litter
Had no effect on roadside litter
Decreased roadside litter
4. In 1984, 65 bottles were collected on the roadside. How many bottles were collected in the year 1995? (see graph 2 above
5. Suppose a student wanted to design an experiment to determine the effects of nitrates on algal growth. What would be the student’s dependent variable?
Amount of nitrates
Time for growth
6. A sample of double-stranded DNA, 30% of the nitrogenous bases are thymine. What percentage of the nitrogenous bases in the sample are adenine?
7. Aluminum (Al) has electrons in its outer shell that it will GIVE AWAY. Oxygen (O) needs electrons to complete its outer shell. Al and O will interact and combine, held together by an ionic bond. What is the chemical formula for resulting compound, aluminum oxide?
8. Which hydrocarbon below would contain (1) one double bond and still be built correctly?
9. What question was the investigator most likely trying to answer? Data Table 1
a. How does the presence of oxygen affect combustion?
b. At what point is equilibrium reached in a combustion reaction?
c. What are the byproducts of an incomplete combustion reaction?
d. Does the amount of fuel in a combustion reaction affect the burn time?
Data Table 1
10. Data in the table show that the use of Echinacea can _____________.
a. reduce the length of cold infection from 10 to 7 days
b. increase the incidence of colds in children from 52% to 64%
c. increase the percent of children with skin rash from 2.7% to 7.1%
d. reduce the numbers of children having colds from 370 to 337 cases
11. Which hypothesis is best supported by the changes in sea-ice coverage? (see Image 2 Below)
a. Earth’s climate is gradually warming.
b. Arctic Sea ice is migrating away from Earth’s poles.
c. Global warming is caused by human activity, not nature.
d. Global warming occurs only at Earth’s poles during the summer.
12. In a laboratory investigation, a student mixes 1 cup of warm water (30°C) with 30 grams of sugar and 5 grams of yeast. She pours the mixture into a glass bottle and secures a balloon over the opening. After several minutes, she observes that the balloon begins to inflate, as shown in the picture below. (Image 3)
The student performs two additional trials. In trial 2 she uses water at 25°C, and in trial 3 she uses water at 20°C. She observes that the colder the water, the longer it takes the balloon to inflate. 18. After reviewing her data, the student decides to perform an additional trial at 35°C. She observes that the balloon inflates faster than during the trial in which the 30°C water was used. This additional trial supports which of the following hypotheses?
a. Warmer temperatures are more favorable for yeast fermentation.
b. Yeast require less sugar when maintained at lower temperatures.
c. The optimum temperature for yeast fermentation is less than 35°C.
d. The time required for fermentation increases with increasing temperature.
13. A petroleum-based (inorganic) polymer is commonly used for grocery bags. Recently there has been a push by environmentalists to make grocery bags out of plant-based (organic) polymers. Students in a science class decided to investigate the strength of the two types of polymers. They obtained one petroleum-based (inorganic) polymer bag and one plant-based (organic) polymer bag of the same size and thickness. They added 100-gram weights to each bag until it broke. What is the independent variable in the investigation?
a. the size of the bags
b. the type of polymer
c. the thickness of the bags
d. the amount of weight of the bags
14. What happens to water molecules in a pool as they absorb energy?
a. The molecules occupy less volume.
b. The molecules begin to move more slowly.
c. The kinetic energy of the atoms decreases.
d. The rate of collision between molecules increases.
15. What is a major advantage of using wind energy instead of coal or nuclear power plants?
Wind is a renewable energy source.
Wind is consistently available in all locations.
Windmills reduce the strength of sever storms.
A single windmill produces more energy than a nuclear plant.
16. The burning of fossil fuels may contribute to an increase in global temperatures. What might lead to this increase in temperature?
The combustion products reflect solar radiation away from Earth.
Carbon dioxide in the atmosphere attracts solar radiation.
Carbon dioxide in the atmosphere blocks energy from escaping into space.
The combustion products allow more energy to enter the earth.
17. A student wanted to design an experiment to determine the effect of nitrates on algae growth. Which procedure would create the most valid results?
Vary both the temperature and the amount of nitrates.
Keep the temperature constant and vary the amount of nitrates.
Vary the temperature and keep the amount of nitrates constant.
Keep both the temperature and amount of nitrates constant.
18. Many communities encourage the recycling of plastics, even though it is often expensive to do so. Why is it beneficial to the environment to recycle plastics?
Plastics are expensive to manufacture.
Plastics are made from renewable resources.
Plastics decompose quickly, releasing toxic chemicals.
Plastics decompose slowly, taking up space in landfills.
19. Which of the following describes an important difference between a potato plant cell and a human cell?
Plant cells have a cell wall, and animal cells do not.
Animal cells store water inside, and plant cells to not.
Plant cells have a cell nucleus, and animal cells to not.
Animal cells perform respiration, and plant cells do not.
20. Flu vaccines are recommended for all individuals. Vaccinations prevent disease by
Preventing viral DNA from entering the body.
Destroying toxins produced by bacteria.
Stimulating the production of antibodies.
Increasing red blood cell production.
21. The effect of temperature on the relative rate of action of an enzyme is represented in the graph below (graph #3). What is the optimum temperature that this enzyme works at?
22. A population of flat-tailed horned lizards was found in a geographically isolated area. In 2002, the size of the population was about 25,500. In 2004, the size of the population was about 32,800. Which of the following statements explains the change in the size of the lizard population from 2002 to 2004?
The birth rate was greater than the death rate.
The emigration rate was greater than the birth rate.
The death rate was greater than the immigration rate.
The emigration rate was greater than the immigration rate.
23. Which of the following expressions can be used to calculate the change in the size of a population?
(births – deaths) + (immigrants – emigrants)
(births + deaths) + (immigrants – emigrants)
(births – deaths) + (immigrants + emigrants)
(births + deaths) + (immigrants + emigrants)
24. Refer to figure 3 below. Which of the following statements explains what is happening in the region of the curve labeled “X”?
The population’s birthrate is zero.
The paramecia are in water that is too warm.
The paramecia have used up their food supply.
The population’s birthrate equals the death rate.
25. If a partially white cat mates with a black cat, what are the expected phenotypes of the kittens? (see Image 4)
All the kittens will be black.
Half the kittens will be black, and half will be partially white.
Three-quarters of the kittens will be black, and one-quarter will be partially white.
Three-quarters of the kittens will be partially white, and one-quarter will be mostly white.
26. Suppose a trait is controlled by a gene that has one dominant allele (G) and one recessive allele (g). Which of the following crosses would be expected to produce the greatest variety of genotypes among the offspring?
GG × GG
GG × gg
Gg × Gg
Gg × gg
27. What do X, Y, and Z represent in the diagram? (diagram 1 below)
X is replication, Y is a gene, and Z is mutation.
X is crossing over, Y is DNA, and Z is mitosis.
X is transcription, Y is mRNA, and Z is translation.
X is meiosis, Y is a chromosome, and Z is transport.
28. Based on the information in the table, which of the following best explains why this bug population has changed since the introduction of the invasive plants? (Image 5)
The bugs are unable to feed on native fruits.
Bugs with shorter mouthparts have all died off.
Bugs with longer mouthparts have a survival advantage.
The bugs have started cross-breeding with a larger species.
29. Which of the following conclusions is best supported by this data? (image 6 below)
Snakes are more closely related to silk moths than to chickens.
Chickens and snakes evolved more recently than horses or whales.
Whales and penguins evolved more recently than any of the other organisms.
Horses and whales are more closely related to each other than the other pairs of organisms are.
30. Which of the following statements best describes the reproduction of both viruses and cells?
Viruses and cells use mitosis to reproduce.
Viruses and cells must have a host to reproduce.
Viruses and cells must activate polar bodies to reproduce.
Viruses and cells need copies of their genetic material to reproduce.
31. Open Response. Suppose a consumer reads the following news release regarding the safety of a genetically modified (GM) food product. GM Grains Pose No Health Risk Researchers report that genetically modified (GM) grains fed to test mice have no negative impact on health. In two trials, the offspring of mice fed GM grain for three weeks showed a similar survival rate as the offspring of mice that were fed non-GM grain. The trials have been called as a victory for GM food producers. A spokesperson for the research group stated that “it is highly unlikely for any unintended side effects to occur as a result of human consumption of GM grains.” Provide three reasons a consumer should question the conclusions presented in this news release.
32. Open Response. The population graphs above (diagram 1) show the age structure of populations in France and India for the year 2014. Compare the two graphs and: a) Describe the difference in individuals of reproductive age (15-45). b) Describe a difference in birthrate. c) Identify one factor that may contribute to the difference in longevity (life span).
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