ATI TEAS 7
Biology
1. What is the basic unit of heredity?
- A. Chromosome
- B. Cell
- C. Gene
- D. Organ
Correct answer: C
Rationale: Rationale: A gene is the basic unit of heredity that carries the instructions for making proteins, which determine an organism's traits. Genes are segments of DNA located on chromosomes within the cell. While chromosomes contain many genes, a gene itself is the fundamental unit of heredity responsible for passing on genetic information from one generation to the next. Cells are the basic structural and functional units of living organisms, but genes specifically carry genetic information. Organs are composed of tissues and serve specific functions within an organism, but they are not the basic unit of heredity.
2. A car accelerates from rest. What happens to its kinetic energy and work done on it?
- A. Both kinetic energy and work done increase
- B. Kinetic energy increases, but work done remains constant.
- C. Work done increases, but kinetic energy remains constant.
- D. Both kinetic energy and work done remain constant.
Correct answer: A
Rationale: During acceleration, the car's speed increases, leading to rising kinetic energy. Simultaneously, the force applied to accelerate the car does work on it, increasing the work done.
3. Ms. Valencia prepares the process standards. Which of the following is NOT a process
- A. Initial assessment shall be done to all patients within twenty four hours upon admission.
- B. Informed consent shall be secured prior to any invasive procedure
- C. Patients’ reports 95% satisfaction rate prior to discharge from the hospital.
- D. Patient education about their illness and treatment shall be provided for all patients and their
Correct answer: D
Rationale: In this question, Ms. Valencia is tasked with preparing process standards, which are systematic procedures or steps followed to ensure quality care. Options A, B, and C all refer to specific processes that are essential in healthcare: timely assessment, obtaining informed consent, and assessing patient satisfaction. However, option D about providing patient education is more focused on an outcome (patient education) rather than a specific process standard. While patient education is important, the question is asking for a process standard, making option D the correct answer as it does not directly relate to a specific process standard.
4. Which type of brain wave activity is often seen during REM sleep, associated with dreaming?
- A. Delta waves
- B. Alpha waves
- C. Beta waves
- D. Theta waves
Correct answer: D
Rationale: During REM (rapid eye movement) sleep, the brain is highly active, and theta waves are the dominant brain wave pattern. Theta waves are associated with deep relaxation, creativity, and dreaming. Delta waves are typically seen in deep sleep stages, not during REM sleep. Alpha waves are present when we are awake but relaxed, while beta waves are associated with active thinking and concentration. Therefore, theta waves are the correct answer for brain wave activity during REM sleep.
5. The lymphatic system is a network of vessels and organs that plays a vital role in:
- A. Transporting oxygen and nutrients to cells
- B. Carrying waste products away from tissues
- C. Regulating body temperature
- D. Producing red blood cells
Correct answer: B
Rationale: The correct answer is B: Carrying waste products away from tissues. The lymphatic system is responsible for collecting excess fluid and waste products from tissues and returning them to the bloodstream for removal. This helps maintain fluid balance in the body and supports immune function by transporting white blood cells to fight infections. Options A, C, and D do not accurately describe the function of the lymphatic system. Transporting oxygen and nutrients to cells is primarily the role of the circulatory system, while regulating body temperature is controlled by the nervous system and producing red blood cells occurs in the bone marrow.
6. Define work in physics.
- A. Force applied to an object at rest
- B. Force exerted by an object in motion
- C. Transfer of energy through motion along a direction
- D. Measure of an object's potential energy
Correct answer: c
Rationale: Work in physics is the transfer of energy when a force is applied and the object moves in the direction of the force.
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