ATI TEAS 7
Anatomy
1. The urethra is the tube that carries urine from the bladder to the outside of the body. How does urine flow through the urethra?
- A. Continuously
- B. Only when the bladder is completely full
- C. Under voluntary control of sphincter muscles
- D. A combination of b) and c)
Correct answer: C
Rationale: The correct answer is C: "Under voluntary control of sphincter muscles." The urethra is the tube responsible for carrying urine from the bladder to the outside of the body. Urine flow through the urethra is not continuous but rather under voluntary control. The sphincter muscles, located at the opening of the bladder and urethra, help control the release of urine. This control allows individuals to regulate when and where they empty their bladder, providing a mechanism to prevent involuntary leakage of urine. Therefore, option C accurately describes how urine flows through the urethra.
2. Which statement accurately describes the relationship between electron configuration and the periodic table?
- A. Elements within the same period have similar electron configurations.
- B. Elements within the same group have similar electron configurations in their outermost shell.
- C. Electron configuration has no influence on an element's position on the periodic table.
- D. The number of electron shells an element has determines its group on the periodic table.
Correct answer: B
Rationale: Elements within the same group have similar electron configurations in their outermost shell. This explains why elements in the same group often share similar chemical properties.
3. The ability of a substance to dissolve in another is called:
- A. Solubility
- B. Miscibility
- C. Immiscibility
- D. Reactivity
Correct answer: A
Rationale: Solubility refers to the extent to which one substance can dissolve in another to form a homogeneous solution.
4. Describe the concept of inertia in terms of Newton's first law.
- A. Objects in motion tend to remain in motion unless acted upon by an external force
- B. Objects at rest tend to remain at rest unless acted upon by an external force
- C. An object's resistance to a change in its state of motion
- D. The force required to lift an object
Correct answer: c
Rationale: Inertia refers to an object's tendency to maintain its current state of motion (either at rest or in motion) unless acted upon by an external force.
5. In technical writing, it's crucial to:
- A. Use informal language to connect with the audience.
- B. Emphasize your expertise with complex jargon.
- C. Explain concepts clearly and concisely for diverse readers.
- D. Prioritize creativity and artistic flair in your writing style.
Correct answer: C
Rationale: Technical writing aims to convey information accurately and understandably to various audiences, requiring clear and concise language.
6. Differentiate between gene therapy and genetic engineering in the context of human intervention.
- A. Gene therapy aims to modify existing genes within body cells, while genetic engineering manipulates genes in embryos to be passed on to offspring.
- B. Gene therapy focuses on treating genetic diseases, while genetic engineering enhances desirable traits or eliminates undesirable ones.
- C. Both involve directly altering the DNA sequence, but gene therapy targets somatic cells and genetic engineering modifies germline cells.
- D. There is no fundamental difference; both terms are synonymous.
Correct answer: B
Rationale: Rationale: A) Incorrect. Gene therapy does aim to modify existing genes within body cells, but genetic engineering does not necessarily manipulate genes in embryos to be passed on to offspring. Genetic engineering can involve modifying genes in any type of cell, not just embryos. B) Correct. Gene therapy is a medical intervention that aims to treat genetic diseases by correcting or replacing faulty genes within an individual's body cells. On the other hand, genetic engineering involves modifying genes to enhance specific traits or eliminate undesirable ones, often in the context of agriculture or biotechnology. C) Incorrect. While both gene therapy and genetic engineering involve altering DNA sequences, the distinction lies in the target cells. Gene therapy targets somatic cells (non-reproductive cells), while genetic engineering typically involves modifying germline cells (reproductive cells that can pass on genetic changes to offspring). D) Incorrect. There is
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