ATI TEAS 7
Anatomy
1. Adipose tissue, commonly known as fat, primarily functions in:
- A. Support
- B. Insulation
- C. Energy storage
- D. All of the above
Correct answer: D
Rationale: The correct answer is D, 'All of the above.' Adipose tissue, or fat, serves multiple functions in the body. It provides support by cushioning and protecting organs, acts as an insulation layer to maintain body temperature, and serves as a crucial energy storage site where excess energy is stored in the form of triglycerides. Therefore, all of the options listed (support, insulation, and energy storage) are accurate functions of adipose tissue.
2. Which type of cell is responsible for carrying oxygen throughout the body?
- A. Nerve cell
- B. Muscle cell
- C. Skin cell
- D. Red blood cell
Correct answer: D
Rationale: The correct answer is D: Red blood cell. Red blood cells, also known as erythrocytes, are responsible for carrying oxygen throughout the body. They contain hemoglobin, a protein that binds to oxygen in the lungs and transports it to tissues and organs. Nerve cells (option A) transmit electrical signals, muscle cells (option B) are involved in movement, and skin cells (option C) form the outer layer of the skin and provide protection.
3. When light reflects from a surface, what determines the angle of reflection?
- A. The material of the surface
- B. The wavelength of the light
- C. The angle of incidence
- D. The intensity of the light
Correct answer: C
Rationale: The angle of reflection is always equal to the angle of incidence according to the law of reflection, regardless of the material, wavelength, or intensity.
4. What is the main idea of the following passage: "The internet has revolutionized communication, allowing people to connect instantly from anywhere in the world. Social media platforms, like Facebook and Twitter, have further amplified this connectivity, enabling individuals to share information and ideas on a global scale."
- A. The internet is a source of entertainment.
- B. Social media is the only way to communicate online.
- C. The internet has transformed communication globally.
- D. Technology is becoming increasingly complex.
Correct answer: C
Rationale: The passage emphasizes the transformative impact of the internet and social media on communication.
5. Which division of the nervous system is responsible for involuntary functions such as heart rate, digestion, and respiratory rate?
- A. Somatic nervous system
- B. Autonomic nervous system
- C. Peripheral nervous system
- D. Central nervous system
Correct answer: b
Rationale: The correct answer is B: Autonomic nervous system. The autonomic nervous system is responsible for regulating involuntary functions in the body, such as heart rate, digestion, respiratory rate, and other automatic processes. The somatic nervous system (A) controls voluntary muscle movements, the peripheral nervous system (C) consists of nerves outside the brain and spinal cord, and the central nervous system (D) includes the brain and spinal cord. Understanding the functions and divisions of the nervous system is crucial for grasping how different bodily processes are controlled and regulated.
6. Which property of a wave determines its loudness in sound waves?
- A. Amplitude
- B. Wavelength
- C. Frequency
- D. Speed
Correct answer: a
Rationale: Amplitude in sound waves relates to the loudness or intensity of the sound.
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