ATI TEAS 7
Chemistry
1. What type of bond forms between elements when they share electrons?
- A. Covalent bond
- B. Ionic bond
- C. Metallic bond
- D. Hydrogen bond
Correct answer: A
Rationale: In a covalent bond, atoms share electrons, creating a strong attraction that holds them together
2. Define power in physics.
- A. The rate of change of energy
- B. The rate of doing work or transferring energy
- C. The measure of an object's potential energy
- D. The force exerted on an object
Correct answer: b
Rationale: Power is the rate at which work is done or energy is transferred or converted.
3. Which of the following guidelines should be least considered in formulating objectives for
- A. Written nursing care plan
- B. Holistic approach
- C. Prescribed standards
- D. Staff preferences
Correct answer: D
Rationale: When formulating objectives for a written nursing care plan, staff preferences should be least considered. Objectives should be based on patient needs, evidence-based practice, and professional standards rather than personal preferences of the staff. Prescribed standards ensure quality care and adherence to best practices. A holistic approach considers the whole patient, including physical, emotional, and spiritual aspects. Staff preferences may introduce bias and should not dictate patient care objectives.
4. What is the correct way to write "25th anniversary" as a word?
- A. Twenty-fiveth anniversary
- B. Twenty Fiveth Anniversary
- C. Twenty fifth anniversary
- D. twenty-fifth anniversary
Correct answer: D
Rationale: Ordinals (numbers with "th", "st", "nd", etc.) are generally written as words when used before nouns. Option (d) is correct.
5. The structure surrounding and protecting the testes, maintaining optimal temperature for sperm production, is called the:
- A. Epididymis
- B. Vas deferens
- C. Scrotum
- D. Prostate gland
Correct answer: C
Rationale: The correct answer is C: Scrotum. The scrotum is the structure surrounding and protecting the testes. Its main function is to maintain the optimal temperature for sperm production by regulating the distance of the testes from the body to adjust to temperature changes. The epididymis (A) is a coiled tube where sperm mature, the vas deferens (B) is a duct that carries sperm from the testes to the urethra, and the prostate gland (D) is responsible for producing prostatic fluid that is a component of semen. Therefore, the scrotum plays a crucial role in protecting and regulating the temperature of the testes for proper sperm production.
6. In the process of osmosis, the solvent moves from an area of...
- A. Low solute concentration to high solute concentration
- B. Hotter solution to colder solution
- C. Colder solution to hotter solution
- D. High solute concentration to low solute concentration
Correct answer: D
Rationale: In osmosis, solvent molecules move across a semi-permeable membrane from an area of low solute concentration to high solute concentration. This movement is driven by the desire to equalize the concentration of solutes on both sides of the membrane. As a result, option A is the correct answer because the solvent will naturally flow towards the area with a higher concentration of solutes in order to balance the concentrations on both sides of the membrane. Options B and C are incorrect as osmosis is not influenced by temperature differences. Option D is incorrect as the solvent does not move towards areas of high solute concentration in osmosis.
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