ATI TEAS 7
Biology
1. What is the scientific name for the common housefly?
- A. Musca domestica
- B. Drosophila melanogaster
- C. Apis mellifera
- D. Anopheles gambiae
Correct answer: A
Rationale: Rationale: - Musca domestica is the scientific name for the common housefly. This species is known for being a common pest found in and around human habitations. - Drosophila melanogaster (option B) is a species of fruit fly commonly used in genetic research. - Apis mellifera (option C) is the scientific name for the western honeybee. - Anopheles gambiae (option D) is a species of mosquito known for being a vector of malaria.
2. Which type of fiber is insoluble and promotes gut motility?
- A. Pectin
- B. Cellulose
- C. Beta-gluca
- D. Guar gum
Correct answer: B
Rationale: Rationale: A) Pectin is a soluble fiber found in fruits and vegetables. It forms a gel-like substance in the gut and can help lower cholesterol levels. B) Cellulose is an insoluble fiber found in plants, particularly in the cell walls of fruits, vegetables, and whole grains. It adds bulk to the stool and promotes gut motility by aiding in the movement of food through the digestive system. C) Beta-glucan is a soluble fiber found in oats and barley. It can help lower cholesterol levels and improve blood sugar control. D) Guar gum is a soluble fiber derived from guar beans. It can help with digestion and may have a role in managing blood sugar levels. In this case, the question specifically asks for the type of fiber that is insoluble and promotes gut motility, which is characteristic of cellulose.
3. What is the lysosome?
- A. A sac-like structure that contains enzymes that break down cellular components
- B. A network of tubules that transport proteins and lipids throughout the cell
- C. The site of protein synthesis
- D. The site of cellular respiration
Correct answer: A
Rationale: Rationale: Lysosomes are membrane-bound organelles found in animal cells that contain digestive enzymes. These enzymes help break down various cellular components, such as proteins, lipids, carbohydrates, and even foreign particles like bacteria. This process of breaking down and recycling cellular components is essential for maintaining cell health and function. Options B, C, and D do not accurately describe the function or structure of a lysosome.
4. Harry is a Unit Manager I the Medical Unit. He is not satisfied with the way things are going
- A. Call for a staff meeting and take this up in the agenda.
- B. Seek help from her manager.
- C. Develop a strategic action on how to deal with these concerns.
- D. Ignore the issues since these will be resolved naturally.
Correct answer: A
Rationale: Choosing option A, 'Call for a staff meeting and take this up in the agenda,' is the best course of action for Harry as a Unit Manager. By calling for a staff meeting, Harry can openly address his concerns with the team, gather input from team members, and work collaboratively to find solutions. This approach promotes transparency, communication, and teamwork, which are essential in resolving issues within a unit. Seeking help from his manager, as suggested in option B, may be necessary in some cases, but initiating a discussion with the staff first allows for a more inclusive problem-solving process. Developing a strategic action, as in option C, is important, but involving the team in this process through a staff meeting is crucial for buy-in and implementation. Ignoring the issues, as in option D, is never a productive approach as unresolved issues can escalate and impact team morale and performance. Therefore, option A is the most effective and proactive way for Harry to address hi
5. Which type of glial cell provides structural support and insulation for neurons in the central nervous system?
- A. Schwann cells
- B. Astrocytes
- C. Oligodendrocytes
- D. Microglia
Correct answer: C
Rationale: The correct answer is C: Oligodendrocytes. Oligodendrocytes are a type of glial cell found in the central nervous system that provide structural support and insulation for neurons by forming myelin sheaths around axons. Schwann cells, on the other hand, are found in the peripheral nervous system. Astrocytes play a role in nutrient transfer and maintaining the blood-brain barrier. Microglia are responsible for immune defense and clearing debris in the CNS. Therefore, oligodendrocytes are specifically responsible for providing structural support and insulation for neurons in the central nervous system.
6. Which verb tense best fits the blank: "By next month, she _____ the project for a year."
- A. will have been working on
- B. will work on
- C. has been working on
- D. had worked on
Correct answer: C
Rationale: The sentence emphasizes the completed duration of the project by next month, requiring the present perfect continuous tense.
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