ATI TEAS 7
Biology
1. What is the function of a cell wall?
- A. To provide structural support for the cell
- B. To transport substances in and out of the cell
- C. To synthesize proteins and lipids
- D. To store genetic material
Correct answer: A
Rationale: Rationale: The cell wall is a rigid layer that surrounds the cell membrane in plant cells, fungi, and some bacteria. Its main function is to provide structural support and protection for the cell, helping maintain the cell's shape and preventing it from bursting or collapsing. The cell wall also allows for the passage of water, ions, and other molecules in and out of the cell. Options B, C, and D are incorrect because those functions are typically carried out by other cellular structures such as the cell membrane, ribosomes, and nucleus, respectively.
2. What is the process of converting DNA into a protein called?
- A. Transcription
- B. Translation
- C. Replication
- D. Mutation
Correct answer: A
Rationale: Transcription is the process of converting DNA into a molecule called messenger RNA (mRNA). This mRNA molecule carries the genetic information from DNA to the ribosomes, where it is used to make proteins.
3. The formula for calculating heart rate is HR = (220 - age) * 0.65. If a patient's heart rate is 136.5, what is their age?
- A. 30
- B. 40
- C. 50
- D. 60
Correct answer: B
Rationale: Rearrange the formula to solve for age: age = 220 - (HR / 0.65). Substitute the heart rate (136.5) to get 40 years old.
4. Julius plans to revisit the organizational chart of the department. He plans to create a new
- A. Box
- B. Solid line
- C. Broken line
- D. Dotted line
Correct answer: B
Rationale: The correct answer is B: 'Solid line.' In organizational charts, solid lines typically represent formal reporting relationships, indicating direct authority and responsibility between positions. Creating a new solid line on the chart would signify a new formal reporting relationship within the department. This can be important for clarifying roles, communication channels, and decision-making processes. Boxes represent positions or roles in the organizational structure, while broken lines and dotted lines are typically used for informal relationships or advisory roles, rather than formal reporting relationships.
5. What is the correct way to punctuate the following sentence: "She asked me if I wanted to go to the movies with her"?
- A. She asked me, if I wanted to go to the movies with her.
- B. She asked me: if I wanted to go to the movies with her?
- C. She asked me, if I wanted, to go to the movies with her.
- D. She asked me if I wanted to go to the movies with her.
Correct answer: D
Rationale: Option D uses a question mark within the quoted material as it is a direct question.
6. Which of the following describes a scalar quantity?
- A. Velocity
- B. Acceleration
- C. Force
- D. Speed
Correct answer: d
Rationale: Speed is a scalar quantity as it only indicates how fast an object is moving without any directional information.
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