Workspace Science Test 5
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OFFICIAL ACT Form 64E · April 2007

Science

14 questions ~9 min recommended
00:00
Score

In the 1940s, scientists thought all genetic material was contained in structures called chromosomes and that chromosomes had been found only in the nucleus of a cell (not in the cytoplasm): Chromosomes are composed of 2 types of molecules, proteins and deoxyribonucleic acid (DNA). Proteins are composed of subunits called amino acids. DNA consists of chains of subunits called nucleotides. The parts of chromosomes that are responsible for the transmission of genetic information are called genes.1234567891011121314

1. According to Figure 1, when p-waves encounter the boundary between the mantle and the core, the p-waves most likely:

2. Based on Figure 3, for a given seismograph, the time elapsed between the arrival of the first p-waves and the arrival of the first s-waves from an earthquake focus 10,500 km away would most likely be:

3. According to Figure 2, which of the following statements best describes the relative amplitudes of the first p-waves to arrive at the seismograph and the first s-waves to arrive at the seismograph? The amplitude of the first p-waves to arrive at the seismograph is:

4. According to Figure 2, the lake clay deposit is thinnest at which of the following cities or sites?

5. According to Figure 3, at Sites 1, 2, and 3, the smallest δ18O value of the groundwater in the lake clay was recorded at a depth between:

6. In Experiment 3, what is the most likely reason the students used the plastic bottle rather than an aluminum can? Compared to an aluminum can, the plastic bottle:

7. Based on the results of Experiments 1 and 2, in which of the following trials, before shaking, were the average speeds of the cans the same?

8. Based on Table 1 and Figure 1, which color of light is associated with the wavelength of light that results in the greatest absorption by chlorophyll b?

9. In eukaryotic organisms, the chemical reactions associated with the chemical equation shown in the passage typically occur within which of the following structures?

10. Which of the following conclusions is best supported by Figures 1 and 2? The wavelength that results in the highest rate of photosynthesis also results in the:

11. In Experiment 1, the density of ethanol was found to be:

12. Based on the results of Experiments 1−3, the density of PA-11 is most likely:

13. In Experiment 1, which of the bacterial species fermented lactose?

14. Suppose that in Experiment 2 both Species B and Species C had been added to a large test tube containing sucrose broth and to a large test tube containing lactose broth. Which of the following would most likely depict the results?