ATI TEAS 7
Anatomy
1. Which of the following organelles is responsible for the production of proteins in the cell?
- A. Ribosomes
- B. Golgi apparatus
- C. Mitochondria
- D. Lysosomes
Correct answer: A
Rationale: The correct answer is A: Ribosomes. Ribosomes are the organelles responsible for protein synthesis in the cell. They are found in both prokaryotic and eukaryotic cells and can be free-floating in the cytoplasm or attached to the endoplasmic reticulum. Ribosomes read the messenger RNA (mRNA) and translate the genetic code into proteins through a process called translation. The Golgi apparatus is involved in processing and packaging proteins for secretion, while mitochondria are responsible for energy production. Lysosomes are involved in digestion and waste removal within the cell.
2. Which of the following is the main organ responsible for regulating blood pressure?
- A. Heart
- B. Kidneys
- C. Adrenal glands
- D. Pituitary gland
Correct answer: B
Rationale: Rationale: The kidneys play a crucial role in regulating blood pressure through various mechanisms. One of the key ways the kidneys regulate blood pressure is by controlling the volume of blood in the body. They do this by adjusting the amount of water and sodium excreted in the urine. The renin-angiotensin-aldosterone system, which is primarily controlled by the kidneys, also plays a significant role in blood pressure regulation. This system helps to maintain blood pressure by regulating blood volume and systemic vascular resistance. While the heart, adrenal glands, and pituitary gland are involved in various aspects of the cardiovascular and endocrine systems, the kidneys are the main organ responsible for regulating blood pressure.
3. Balance the chemical equation: C4H10 + O2 → CO2 + H2O. What is the coefficient for oxygen?
- A. 5
- B. 6
- C. 7
- D. 8
Correct answer: b
Rationale: The balanced equation is C4H10 + 6O2 → 4CO2 + 5H2O.
4. Which part of the spinal cord is responsible for transmitting sensory information from the body to the brain?
- A. Dorsal root
- B. Ventral root
- C. Gray matter
- D. White matter
Correct answer: a
Rationale: The correct answer is A: Dorsal root. The dorsal root of the spinal cord is responsible for transmitting sensory information from the body to the brain. This root contains sensory nerve fibers that carry information such as touch, temperature, and pain signals from the peripheral nervous system to the central nervous system. Ventral roots, on the other hand, are responsible for transmitting motor information from the brain to the muscles. Gray matter is primarily composed of nerve cell bodies and is involved in processing information, while white matter consists of myelinated nerve fibers that facilitate communication between different parts of the nervous system. Therefore, in this context, the dorsal root is the specific structure that handles sensory information transmission.
5. Alexandra is tasked to organize the new wing of the hospital. She was given the authority to
- A. Benevolent –authoritative
- B. Consultative
- C. Exploitive-authoritative
- D. Participative
Correct answer: D
Rationale: The correct answer is D: Participative. In a participative leadership style, Alexandra would involve the team members in decision-making and encourage their input when organizing the new wing of the hospital. This approach fosters collaboration, empowers team members, and can lead to better outcomes as everyone's perspectives are considered. Benevolent-authoritative (A) involves a leader who is kind and caring but makes decisions independently. Consultative (B) involves seeking input from team members but making the final decision independently. Exploitive-authoritative (C) involves a leader who uses their authority in a self-serving or oppressive manner. In this scenario, with the task of organizing a new wing of the hospital, a participative approach would be most effective in engaging the team and utilizing their expertise.
6. Identify the reflexive pronoun in the sentence: "She prepared herself for the presentation."
- A. herself
- B. she
- C. presentation
- D. for
Correct answer: A
Rationale: "Herself" refers back to the subject "she," making it a reflexive pronoun.
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