ATI TEAS 7
Chemistry
1. The element responsible for the green color of leaves is:
- A. Magnesium
- B. Iron
- C. Copper
- D. Zinc
Correct answer: A
Rationale: Magnesium is the central element of chlorophyll, the pigment responsible for photosynthesis
2. Which of the following is NOT a state of matter?
- A. Solid
- B. Liquid
- C. Gas
- D. Superfluid
Correct answer: D
Rationale: While superfluids exhibit some liquid-like properties, they are a distinct state of matter with unique characteristics beyond the traditional solid, liquid, gas, and plasma classifications.
3. He asserts the importance of promoting a positive organizational culture in their unit. Which
- A. Proactive and caring with one another
- B. Competitive and perfectionist
- C. Powerful and oppositional
- D. Obedient and uncomplaining
Correct answer: A
Rationale: The correct answer is A: 'Proactive and caring with one another.' When promoting a positive organizational culture, it is essential to foster a supportive environment where individuals are proactive in their approach and demonstrate care towards one another. This type of culture encourages collaboration, open communication, and empathy among team members, leading to higher levels of job satisfaction and overall performance. Being competitive and perfectionist (option B) can create a stressful and unhealthy work environment, while being powerful and oppositional (option C) or obedient and uncomplaining (option D) can stifle creativity and innovation. Therefore, the most suitable traits for promoting a positive organizational culture are being proactive and caring with one another.
4. Which of the following is the main function of the liver?
- A. To produce bile, which helps digest fats
- B. To store energy in the form of glycogen
- C. To produce proteins that help to clot blood
- D. To detoxify harmful substances in the body
Correct answer: D
Rationale: Rationale: A) The liver does produce bile, which helps in the digestion of fats, but this is not its main function. Bile is stored in the gallbladder and released into the small intestine to aid in the digestion and absorption of fats. B) While the liver does store energy in the form of glycogen, this is not its main function. Glycogen is a form of glucose storage that can be broken down into glucose when the body needs energy. C) The liver does produce proteins that help to clot blood, such as fibrinogen and prothrombin, but this is not its main function. These proteins are essential for the blood clotting process to prevent excessive bleeding. D) The main function of the liver is to detoxify harmful substances in the body. The liver processes and removes toxins, drugs, alcohol, and other harmful substances from the bloodstream, making them less harmful and
5. Which of the following is an example of a zoonotic disease?
- A. The common cold
- B. Influenza (the flu)
- C. Malaria
- D. HIV/AIDS
Correct answer: B
Rationale: Rationale: A zoonotic disease is a disease that can be transmitted from animals to humans. Influenza is an example of a zoonotic disease as it can be transmitted from animals such as birds and pigs to humans. The common cold (option A) is caused by human rhinoviruses and is not considered a zoonotic disease. Malaria (option C) is transmitted through the bite of infected mosquitoes and is not considered a zoonotic disease. HIV/AIDS (option D) is caused by the human immunodeficiency virus and is not considered a zoonotic disease.
6. The control center of the cell, containing genetic information (DNA), is the:
- A. Golgi apparatus
- B. Ribosome
- C. Nucleus
- D. Endoplasmic reticulum
Correct answer: C
Rationale: The correct answer is C: Nucleus. The nucleus is the control center of the cell as it contains the cell's genetic material, DNA. It acts as the brain of the cell, regulating gene expression and controlling cell activities. The Golgi apparatus is responsible for packaging and processing proteins, the ribosomes are involved in protein synthesis, and the endoplasmic reticulum is essential for protein and lipid synthesis. However, none of these organelles house the genetic information of the cell, making the nucleus the correct answer in this case.
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