ATI TEAS 7
TEAS Practice Test Science Questions
Question 1 of 5
Which concentration unit depends on pressure?
Correct Answer: C
Rationale: The correct answer is C: molarity. Molarity is a concentration unit that depends on pressure because it is defined as the number of moles of solute dissolved in one liter of solution. Pressure can affect the volume of the solution, thus impacting the molarity. A: ppm (parts per million) and B: ppb (parts per billion) are mass-based concentration units and do not directly depend on pressure. D is incorrect because while molarity does depend on pressure, ppm and ppb do not.
Question 2 of 5
Which of the following factors does not strengthen a scientific argument?
Correct Answer: B
Rationale: Sure, here's the step-by-step rationale for why choice B is the correct answer: 1. Qualitative research is subjective. 2. Scientific arguments should rely on objective, quantitative data. 3. Extensive use of qualitative research weakens objectivity. 4. Objective data strengthens scientific arguments. Summary of other choices: A: Lack of bias strengthens a scientific argument by ensuring objectivity. C: Reproducibility strengthens a scientific argument by validating results. D: Standing the test of time strengthens a scientific argument by showing consistency.
Question 3 of 5
Which of the following structures is located in the pelvic cavity?
Correct Answer: C
Rationale: The correct answer is C: The bladder. The bladder is located in the pelvic cavity, specifically in the lower part of the abdomen. It is a hollow organ that stores urine before it is expelled from the body. The kidneys (A) are located in the upper abdominal area, the colon (B) is part of the large intestine and extends from the cecum to the rectum, and the rectum (D) is the final part of the large intestine before the anus. Therefore, the bladder is the only structure among the choices that is specifically located in the pelvic cavity.
Question 4 of 5
What is the basic structural and functional unit of the kidney?
Correct Answer: B
Rationale: The correct answer is B: Nephron. The nephron is the basic structural and functional unit of the kidney because it is responsible for filtering blood, regulating fluid balance, and producing urine. It consists of the glomerulus, tubules, and collecting ducts. The other choices, A: Neuron, C: Glomerulus, and D: Axon, are not correct as they do not perform the specific functions related to kidney physiology. Neurons are nerve cells, glomerulus is a part of the nephron, and axon is a part of a neuron.
Question 5 of 5
Where does the electron transport chain occur in the cell?
Correct Answer: C
Rationale: The correct answer is C: Inner mitochondrial membrane. The electron transport chain occurs in the inner mitochondrial membrane because it is where the proteins and complexes involved in oxidative phosphorylation are located. This is where electrons are passed along the chain, leading to the production of ATP. The cytosol (choice A) is where glycolysis occurs, not the electron transport chain. The Golgi apparatus (choice B) is involved in protein processing and sorting, not energy production. The nucleus (choice D) houses the cell's genetic material and is not directly involved in the electron transport chain.
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