ATI TEAS Science Practice Test

ATI TEAS Science Practice Test Related

Review ATI TEAS Science Practice Test related questions and content

A student hypothesizes that higher sugar consumption negatively impacts test scores. To investigate this, the student recruits participants to consume varying amounts of sugar, wait for one hour, and then complete an aptitude test. The student will record both the amount of sugar consumed and the test scores to analyze the relationship. What is the best experimental approach?

  • A. Conduct one round of testing where each participant consumes a different amount of sugar.
  • B. Conduct two rounds of testing: In the first round, participants consume varying amounts of sugar; in the second round, they consume the same amount of sugar as they did in the first round.
  • C. Conduct two rounds of testing: In the first round, participants consume varying amounts of sugar; in the second round, participants consume no sugar.
  • D. Conduct one round of testing where all participants consume the same amount of sugar.
Correct Answer: C

Rationale: Option C provides the most thorough experimental design by including a control group. In the first round, varying sugar intake levels help explore the relationship between sugar consumption and test scores. In the second round, by having participants consume no sugar, the student can compare results to observe any changes due to sugar intake. This approach enhances the validity of the findings by accounting for potential confounding factors and better identifying causal relationships. Choice A is not ideal as it lacks a control group and does not compare the impact of sugar consumption. Choice B does not explore the effects of sugar consumption adequately as it does not include a group without sugar. Choice D does not allow for comparison between different sugar consumption levels, limiting the ability to draw meaningful conclusions.

You may also like to solve these questions

Which of the following lists the structures found beneath the rib in descending order?

  • A. Nerve → Artery → Vein
  • B. Vein → Nerve → Artery
  • C. Vein → Artery → Nerve
  • D. Artery → Nerve → Vein
Correct Answer: C

Rationale: The correct order of structures found beneath the rib in descending order is Vein → Artery → Nerve. This sequence is important to remember for medical procedures like inserting a chest tube to ensure precision and avoid complications. Choice A is incorrect because the nerve is not typically the structure closest to the rib. Choice B is incorrect as the vein is usually closer to the rib than the nerve. Choice D is incorrect as the artery is usually closer to the rib than the nerve.

What are the three types of capillaries?

  • A. Continuous, fenestrated, sinusoidal
  • B. Continuous, discontinuous, fenestrated
  • C. Sinusoidal, alveolar, continuous
  • D. Continuous, fenestrated, vascular
Correct Answer: A

Rationale: The correct answer is A: Continuous, fenestrated, sinusoidal. Capillaries are classified into three types based on their permeability: continuous (least permeable), fenestrated (moderately permeable), and sinusoidal (most permeable). Choices B, C, and D are incorrect because they do not represent the three main types of capillaries. Choice B includes 'discontinuous' which is not a recognized type. Choice C includes 'alveolar' which is not a type of capillary, and Choice D includes 'vascular' which is too broad and not specific to capillary classification.

What hormones are produced in the ovaries, and what are their functions?

  • A. Insulin: regulates blood sugar levels
  • B. Progesterone: stimulates uterine lining growth
  • C. Adrenaline: increases heart rate
  • D. Cortisol: regulates stress response
Correct Answer: B

Rationale: The correct answer is B. Progesterone, produced in the ovaries, stimulates uterine lining growth and plays a crucial role in regulating the menstrual cycle. Insulin is produced in the pancreas to regulate blood sugar levels, not in the ovaries. Adrenaline is produced by the adrenal glands and increases heart rate in response to stress or danger, not in the ovaries. Cortisol, also produced by the adrenal glands, helps regulate the body's response to stress, not in the ovaries.

Which three parts make up the large intestine?

  • A. Duodenum, ileum, jejunum
  • B. Cecum, colon, rectum
  • C. Ileum, jejunum, rectum
  • D. Colon, cecum, ileum
Correct Answer: B

Rationale: The correct answer is B: Cecum, colon, rectum. The large intestine is composed of the cecum, colon, and rectum. These parts are responsible for water absorption and feces formation. Choices A, C, and D are incorrect. A contains parts of the small intestine (duodenum, ileum, jejunum), C has a mix of small and large intestine parts, and D includes the small intestine part ileum. Understanding the correct anatomy of the large intestine is essential for distinguishing it from the small intestine.

How many mL of a 0 M stock solution of HCl should be added to water to create 250 mL of a 50 M solution of HCl?

  • A. 31.25 mL
  • B. 32 mL
  • C. 30 mL
  • D. 31.3 mL
Correct Answer: B

Rationale: To prepare 250 mL of a 50 M solution of HCl, the formula V1 x C1 = V2 x C2 is used, where V1 is the volume of the stock solution, C1 is the concentration of the stock solution, V2 is the final volume of the desired solution, and C2 is the final concentration of the desired solution. Given V1 x 0 M = 250 mL x 50 M, solving for V1 results in V1 = (250 mL x 50 M) / 0 M = 32 mL. Therefore, 32 mL of the 0 M stock solution of HCl needs to be added to water to create a 250 mL solution of 50 M HCl. Choices A, C, and D are incorrect because they do not represent the accurate volume required for the dilution calculation based on the given concentrations and volumes in the problem.

Copyright © 2025 Nokea. All rights reserved.