ATI TEAS 7
Biology
1. What are the key differences between cytokinesis in plant and animal cells?
- A. Animal cells utilize an actomyosin ring for cleavage furrow formation, while plant cells lack this mechanism.
- B. Plant cells rely on the assembly of a cell plate in the center of the dividing cell, ultimately separating the cytoplasm.
- C. Cytokinesis in both plant and animal cells is driven by the expansion of the endoplasmic reticulum.
- D. Both types of cells achieve cytokinesis through similar membrane pinching and constriction mechanisms.
Correct answer: B
Rationale: Rationale: A) Animal cells utilize an actomyosin ring for cleavage furrow formation, while plant cells lack this mechanism. - This statement is true. Animal cells use an actomyosin ring to form a cleavage furrow during cytokinesis, while plant cells do not have this mechanism. Instead, plant cells form a cell plate. B) Plant cells rely on the assembly of a cell plate in the center of the dividing cell, ultimately separating the cytoplasm. - This statement is correct. Plant cells form a cell plate in the middle of the dividing cell during cytokinesis. The cell plate eventually develops into a new cell wall that separates the two daughter cells. C) Cytokinesis in both plant and animal cells is driven by the expansion of the endoplasmic reticulum. - This
2. She wants to ensure that every task is carried out as planned. Which of the following tasks is
- A. Instructing the members of the standards committee to prepare policies
- B. Reviewing the existing policies of the hospital
- C. Evaluating the credentials of all nursing staff
- D. Checking if activities conform to schedule
Correct answer: C
Rationale: The correct answer is C because evaluating the credentials of all nursing staff is essential to ensuring that the right individuals are in place to carry out tasks effectively. This task directly contributes to maintaining a high standard of performance and ensuring that the team is qualified for their roles. In contrast, the other options focus on policies, reviews, and schedules, which are important but do not directly address the qualifications and capabilities of the staff responsible for task execution.
3. What is the term for a group of organisms living in the same place and interacting with each other?
- A. Ecosystem
- B. Community
- C. Population
- D. Niche
Correct answer: B
Rationale: Rationale: - A) Ecosystem refers to a biological community of interacting organisms and their physical environment. - B) Community specifically refers to a group of organisms of different species living in the same place and interacting with each other. - C) Population refers to a group of individuals of the same species living in the same area. - D) Niche refers to the role or function of an organism or species within an ecosystem. In this context, the term for a group of organisms living in the same place and interacting with each other is best described as a community because it involves multiple species interacting within a shared habitat.
4. Define "acceleration" in terms of motion.
- A. Change in velocity over time
- B. Speed in a straight line
- C. Distance covered in a given time
- D. Force applied to an object
Correct answer: a
Rationale: Acceleration measures the rate of change of velocity with respect to time.
5. When unpolarized light passes through a polarizing filter, the intensity of the transmitted light is:
- A. Completely absorbed
- B. Reduced by half
- C. Unaffected
- D. Doubled
Correct answer: B
Rationale: When unpolarized light passes through a polarizing filter, the intensity of the transmitted light is reduced by half. This is because a polarizing filter only allows light waves oscillating in one plane to pass through while blocking the other perpendicular plane. Unpolarized light consists of waves oscillating in all possible planes, so when it passes through the polarizer, only half of the light waves aligned with the filter's polarization direction can transmit through. As a result, the intensity of the transmitted light is reduced by half as only a portion of the original light waves can pass through the filter.
6. In the sentence "The house was dilapidated," what effect does the word "dilapidated" have on the reader's understanding?
- A. Creates a sense of mystery.
- B. Emphasizes the large size of the house.
- C. Suggests the house is in poor condition.
- D. Implies the house is haunted.
Correct answer: C
Rationale: The word "dilapidated" specifically describes the house's deteriorating state.
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