ATI TEAS 7
Chemistry
1. 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).
2. The lymphatic system is primarily responsible for:
- A. Transporting nutrients throughout the body
- B. Removing excess fluids and waste products from tissues
- C. Producing red blood cells
- D. Regulating body temperature
Correct answer: B
Rationale: The correct answer is B: 'Removing excess fluids and waste products from tissues.' The lymphatic system plays a crucial role in maintaining fluid balance in the body by collecting excess interstitial fluid and returning it to the bloodstream. This system also helps in removing waste products, pathogens, and toxins from tissues, contributing to the body's immune response. Options A, C, and D are incorrect because transporting nutrients, producing red blood cells, and regulating body temperature are primarily the functions of other systems in the body such as the circulatory system, bone marrow, and the thermoregulatory system, respectively.
3. When Harry uses team nursing as a care delivery system, he and his team need to assess the
- A. Each patient as listed on the worksheet
- B. Patients who needs least care
- C. Medications and treatments required for all patients
- D. Patients who need the most care
Correct answer: C
Rationale: When Harry uses team nursing as a care delivery system, he and his team need to assess the medications and treatments required for all patients. In team nursing, different team members are responsible for specific aspects of patient care, such as medications and treatments. Assessing the medications and treatments required for all patients ensures that each patient receives appropriate and timely care. This approach helps in coordinating care effectively among team members and prevents errors or omissions in patient treatment. Therefore, option C is the correct answer as it aligns with the principles of team nursing and patient-centered care.
4. Centrioles are structures involved in cell division. What is their specific role?
- A. Forming the nuclear envelope
- B. Replicating DNA
- C. Organizing microtubules during cell division
- D. Protein synthesis
Correct answer: C
Rationale: Centrioles are cylindrical structures found in animal cells that play a crucial role in organizing microtubules during cell division. They form the spindle fibers that help separate chromosomes during mitosis and meiosis. This organization is essential for the proper alignment and separation of chromosomes, ensuring accurate distribution of genetic material to daughter cells. Centrioles do not participate in forming the nuclear envelope, replicating DNA, or protein synthesis. Therefore, the correct answer is C, as centrioles are primarily involved in microtubule organization to facilitate cell division.
5. Which hormone, produced by the pituitary gland, stimulates the production of milk in mammary glands during breastfeeding?
- A. Growth hormone (GH)
- B. Thyroid-stimulating hormone (TSH)
- C. Prolactin
- D. Follicle-stimulating hormone (FSH)
Correct answer: c
Rationale: The correct answer is C: Prolactin. Prolactin is the hormone produced by the pituitary gland that stimulates the production of milk in the mammary glands during breastfeeding. It plays a crucial role in lactation by promoting the growth and development of the mammary glands and initiating the production of milk. Growth hormone (GH) regulates growth and metabolism, not milk production. Thyroid-stimulating hormone (TSH) stimulates the thyroid gland, not mammary glands. Follicle-stimulating hormone (FSH) is involved in reproductive processes, not milk production. Therefore, prolactin is the hormone directly responsible for stimulating milk production during breastfeeding.
6. Pinpoint the smallest bone in the human body.
- A. Stapes (Middle ear bone)
- B. Patella (Kneecap)
- C. Phalanges (Finger bones)
- D. Ribs
Correct answer: A
Rationale: The stapes, crucial for hearing, transmits and amplifies sound vibrations. Despite its size, it plays a vital role in auditory perception.
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