ATI TEAS 7
physics
1. Which term describes the resistance of a substance to flow?
- A. Density
- B. Viscosity
- C. Conductivity
- D. Malleability
Correct answer: b
Rationale: Viscosity refers to the resistance of a substance to flow. Substances with high viscosity flow slowly, while those with low viscosity flow more easily.
2. Julius stresses the importance of promoting ‘esprit d corps’ among the members of the unit.
- A. “Let’s work together in harmony; we need to be supportive of one anotherâ€
- B. “In order that we achieve the same results; we must all follow the directives of Julius and not
- C. “We will ensure that all the resources we need are available when needed.â€
- D. “We need to put our efforts together in order to raise the bar of excellence in the care we
Correct answer: D
Rationale: The correct answer is D because it emphasizes the idea of collective effort and striving for excellence, which aligns with promoting 'esprit de corps' - a sense of unity and camaraderie among group members. By working together and combining their efforts, the unit can enhance the quality of care they provide. This fosters a positive team spirit and encourages collaboration. The other options do not directly address the concept of 'esprit de corps' or the importance of unity and teamwork within the group.
3. What is the product of the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?
- A. NaCl + H2O
- B. NaOH + HCl
- C. Na2Cl + H2O
- D. NaClO3 + H2
Correct answer: a
Rationale: The reaction between HCl and NaOH results in the formation of sodium chloride (NaCl) and water (H2O).
4. What is the main consequence of a malfunctioning thyroid gland that produces abnormally low levels of thyroid hormones?
- A. Increased energy levels and weight loss
- B. Decreased heart rate and body temperature
- C. Enhanced muscle growth and bone development
- D. Faster metabolism and heightened alertness
Correct answer: B
Rationale: The correct answer is B: 'Decreased heart rate and body temperature.' When the thyroid gland produces abnormally low levels of thyroid hormones (hypothyroidism), it can lead to a decrease in metabolic rate, resulting in symptoms such as fatigue, weight gain, and feeling cold. A lower metabolic rate can slow down heart rate and decrease body temperature. The other options (A, C, D) are not characteristic of hypothyroidism. Increased energy levels and weight loss, enhanced muscle growth and bone development, and faster metabolism and heightened alertness are more commonly associated with hyperthyroidism, where the thyroid gland produces excess hormones.
5. The structural and functional unit of the kidney responsible for filtering blood is the:
- A. Nephron
- B. Ureter
- C. Urethra
- D. Bladder
Correct answer: A
Rationale: The correct answer is A, Nephron. The nephron is the structural and functional unit of the kidney responsible for filtering blood. It consists of the glomerulus, renal tubule, and collecting duct. The nephron's filtration process plays a crucial role in removing waste products, regulating electrolyte balance, and maintaining blood pressure. The other options, B: Ureter, C: Urethra, and D: Bladder, are not responsible for filtering blood. The ureter transports urine from the kidneys to the bladder, the urethra is responsible for urine excretion from the bladder, and the bladder stores urine before excretion. Therefore, the nephron is specifically designed for the filtration process within the kidney.
6. The involuntary "fight-or-flight" response is controlled by the:
- A. Sympathetic nervous system
- B. Parasympathetic nervous system
- C. Enteric nervous system
- D. Sensory nervous system
Correct answer: A
Rationale: The correct answer is A: Sympathetic nervous system. The "fight-or-flight" response is an automatic physiological reaction triggered by the sympathetic nervous system in response to a perceived threat or stressor. This system prepares the body for action by increasing heart rate, dilating pupils, and redirecting blood flow to muscles. The parasympathetic nervous system, on the other hand, controls the body's "rest-and-digest" response, promoting relaxation and digestion. The enteric nervous system primarily regulates the gastrointestinal system, while the sensory nervous system is responsible for transmitting sensory information to the brain. Therefore, the sympathetic nervous system is specifically responsible for initiating the fight-or-flight response.
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