ATI TEAS 7
ATI TEAS 7 English quizlet
1. Which sentence uses comma splices incorrectly?
- A. The baker kneaded the dough, flour dusted her apron, and the oven warmed up.
- B. The mountains, shrouded in mist, seemed to disappear into the clouds.
- C. He arrived late, having forgotten his keys, and the meeting had already started.
- D. The movie, despite its flaws, was surprisingly enjoyable.
Correct answer: C
Rationale: Option (C) incorrectly combines two independent clauses with only a comma, resulting in a comma splice. A comma should not be used to connect independent clauses; instead, a semicolon, conjunction, or period is needed to properly separate the ideas in the sentence. Choices (A), (B), and (D) do not contain comma splices and present their ideas in a grammatically correct manner.
2. What are the tiny contractile units within muscle cells called?
- A. Myocytes
- B. Myofibrils
- C. Sarcomeres
- D. Tendons
Correct answer: C
Rationale: Sarcomeres are the smallest contractile units within muscle cells. They consist of overlapping filaments of actin and myosin proteins, which interact to produce muscle contractions. Myocytes are the entire muscle cells, myofibrils are bundles of protein filaments found within muscle cells, and tendons are tough connective tissues that connect muscles to bones. Therefore, sarcomeres specifically represent the contractile units responsible for muscle contraction, making them the correct answer in this context.
3. A couple dining at a restaurant receives a bill for $28.40. They wish to leave a 10% tip. Which of the following is the estimated gratuity?
- A. $4.00
- B. $6.00
- C. $2.50
- D. $3.00
Correct answer: D
Rationale: To calculate a 10% tip on a bill of $28.40, you would first find 10% of $28.40, which is $2.84. Since you typically round up when leaving a tip, the estimated gratuity would be $3.00. Option A is incorrect as it is too high for a 10% tip. Option B is incorrect as it is too high. Option C is incorrect as it is too low for a 10% tip. Therefore, the correct answer is $3.00.
4. Which word in the sentence 'The quick brown fox jumps over the lazy dog' demonstrates alliteration?
- A. quick
- B. brown
- C. fox
- D. jumps
Correct answer: A
Rationale: Alliteration is the repetition of the initial consonant sound in neighboring words. In the sentence 'The quick brown fox jumps over the lazy dog,' 'quick' and 'brown' both start with the 'k' sound, but only 'quick' aligns with the definition of alliteration as it repeats the 'k' sound found at the beginning of the words.
5. How do spindle fiber dynamics and microtubule attachment regulate cell cycle checkpoints?
- A. Misaligned chromosomes fail to attach to microtubules, triggering a delay in anaphase onset.
- B. The presence of unattached kinetochores on the centromeres sends a signal to pause cell cycle progression.
- C. Microtubule instability and rapid depolymerization lead to the activation of checkpoint proteins.
- D. All of the above.
Correct answer: D
Rationale: A) Misaligned chromosomes fail to attach to microtubules, triggering a delay in anaphase onset: Proper attachment of chromosomes to spindle fibers is essential for accurate segregation of genetic material during cell division. Misaligned chromosomes that fail to attach to microtubules can lead to delays in anaphase onset, allowing the cell to correct errors before proceeding with division. B) The presence of unattached kinetochores on the centromeres sends a signal to pause cell cycle progression: Kinetochores at the centromeres help attach chromosomes to spindle fibers. When kinetochores are unattached or improperly attached to microtubules, they signal the cell to pause cell cycle progression, ensuring proper chromosome alignment before division. C) Microtubule instability and rapid depolymerization lead to the activation of checkpoint proteins: While microtubule dynamics are crucial for cell division, microtubule instability and rapid depolymerization can disrupt chromosome attachment. However, this mechanism is not directly related to the activation of cell cycle checkpoint proteins, making this statement incorrect. Therefore, choices A and B accurately describe how spindle fiber dynamics and microtubule attachment regulate cell cycle checkpoints, making option D the correct answer.
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