ATI TEAS 7
TEAS Test Math Prep
1. What is the sixth number in the sequence 5, 6, 7, 8, 9?
- A. 8
- B. 10
- C. 11
- D. 12
Correct answer: C
Rationale: In the given sequence 5, 6, 7, 8, 9, the sixth number would come after 9, not after the fifth number in the sequence. To find the sixth number, we need to continue the pattern after 9. The next number after 9 would be 10, making it the sixth number in the sequence. Therefore, the correct answer is not listed among the choices provided. Choice A, 8, is the fifth number in the sequence. Choice B, 10, is the number right after the sixth number. Choice D, 12, is not in the sequence at all, making it incorrect. Thus, the correct answer is 11.
2. What is the main idea of the passage?
- A. Manufacturers of dietary supplements must adhere to good manufacturing practices.
- B. The FDA has a specialized program for regulating dietary supplements.
- C. The federal government prosecutes individuals who deceive the public.
- D. The FDA operates under the federal government.
Correct answer: B
Rationale: The main idea of the passage is that the FDA has a specialized program for regulating dietary supplements. The passage explains how the FDA regulates dietary supplements differently from drugs, focusing on the requirements for marketing, good manufacturing practices, monitoring safety, and taking action against unsafe products. Choice A is incorrect because while it mentions good manufacturing practices, it's not the central idea of the passage. Choice C is incorrect as there is no emphasis on prosecuting individuals in the passage. Choice D is incorrect because stating that the FDA is part of the federal government is not the main idea discussed in the passage.
3. Melanin, the pigment responsible for skin color, is produced by
- A. Keratinocytes (These cells produce keratin)
- B. Melanocytes
- C. Sebocytes (These cells produce sebum)
- D. Langerhans cells (These cells are part of the immune system)
Correct answer: B
Rationale: Melanocytes are the cells responsible for producing melanin, the pigment that determines skin color. Melanin gives skin its color and protects it from the harmful effects of UV radiation. Keratinocytes produce keratin, a tough protein that forms the outer layer of the skin, hair, and nails. Sebocytes produce sebum, an oily substance that helps moisturize and protect the skin. Langerhans cells are a type of immune cell found in the skin that play a role in protecting against infections and foreign substances but do not produce melanin.
4. What is the term for the chemical reaction that involves the loss of electrons?
- A. Reduction
- B. Oxidation
- C. Neutralization
- D. Precipitation
Correct answer: B
Rationale: Oxidation is the process where a substance loses electrons. In an oxidation reaction, the substance being oxidized loses electrons, which are gained by another substance. Reduction is the opposite process, where a substance gains electrons. Neutralization is a reaction between an acid and a base to form a salt and water. Precipitation is the formation of a solid from a solution. Therefore, in the context of a chemical reaction involving the loss of electrons, the correct term is oxidation (Choice B).
5. Convert 5 kilometers to meters.
- A. 50 meters
- B. 500 meters
- C. 5000 meters
- D. 0.5 meters
Correct answer: C
Rationale: To convert kilometers to meters, you need to multiply by 1000 because there are 1000 meters in 1 kilometer. Therefore, 5 kilometers x 1000 = 5000 meters. Choice A (50 meters) is incorrect because it underestimates the conversion. Choice B (500 meters) is incorrect as it also underestimates the conversion. Choice D (0.5 meters) is incorrect as it incorrectly represents the conversion as less than a kilometer.
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