ATI TEAS 7
ATI TEAS 7 Version 1 Science Questions
Extract:
Question 1 of 5
Which of the following organs is covered by the pleura, a connective tissue sheath?
Correct Answer: B
Rationale: The pleura is a protective membrane that covers the lungs. It consists of two layers: the visceral pleura (inner layer) and the parietal pleura (outer layer). The pleural space between these layers contains a small amount of fluid that helps reduce friction during breathing movements. The spleen, heart, and liver are not covered by the pleura. Therefore, the correct answer is the lungs.
Question 2 of 5
The triple point of a substance is the temperature and pressure at which the substance exists as which of the following?
Correct Answer: C
Rationale: The triple point is a specific condition where a substance can exist simultaneously in all three phases: solid, liquid, and gas. The other options do not accurately describe this state.
Extract:
Question 3 of 5
Why is nitrogen gas an extremely stable molecule?
Correct Answer: C
Rationale: The correct answer is C - triple covalent bonds. Nitrogen gas (N2) is composed of two nitrogen atoms held together by a triple covalent bond. This bond is very strong and requires a significant amount of energy to break, making nitrogen gas a stable molecule. Triple covalent bonds involve the sharing of three pairs of electrons, resulting in a very stable configuration. Resonance bonds, ionic bonds, and hydrogen bonds are not present in the structure of nitrogen gas, hence they do not contribute to its stability.
Extract:
Question 4 of 5
Which of the following spinal regions contains the largest number of vertebrae?
Correct Answer: A
Rationale: The thoracic region contains 12 vertebrae, which is more than the 5 lumbar, 7 cervical, and 5 sacral vertebrae.
Question 5 of 5
Which of the following cells secrete bone material?
Correct Answer: D
Rationale: Osteocytes are the cells responsible for maintaining bone tissue and secreting bone material, contributing to the overall structure and strength of bones.