ATI TEAS 7
Biology
1. What is the endoplasmic reticulum?
- A. A network of tubules that transport proteins and lipids throughout the cell
- B. A sac-like structure that stores water and nutrients
- C. The site of protein synthesis
- D. The site of cellular respiration
Correct answer: A
Rationale: Rationale: A) The endoplasmic reticulum (ER) is a network of tubules that are involved in the transport of proteins and lipids throughout the cell. It plays a crucial role in protein synthesis, folding, and transport within the cell. The ER can be further divided into rough ER, which has ribosomes attached to its surface and is involved in protein synthesis, and smooth ER, which is involved in lipid metabolism and detoxification. Therefore, option A is the most accurate description of the endoplasmic reticulum compared to the other options provided. B) A sac-like structure that stores water and nutrients does not accurately describe the endoplasmic reticulum. While some organelles like vacuoles or vesicles may store water and nutrients, the ER's primary function is not storage. C) The site of protein synthesis is partially
2. What is the recommended daily intake of protein for adults to maintain healthy muscle mass?
- A. 0.5 grams per kilogram of body weight
- B. 1 gram per kilogram of body weight
- C. 1.5 grams per kilogram of body weight
- D. 2 grams per kilogram of body weight
Correct answer: C
Rationale: The recommended daily intake of protein for adults to maintain healthy muscle mass is 1.5 grams per kilogram of body weight. Protein is essential for muscle repair and growth, and consuming an adequate amount helps support overall muscle health. 1 gram per kilogram of body weight is generally recommended for sedentary individuals, but for those looking to maintain or build muscle mass, a higher intake of 1.5 grams per kilogram of body weight is advised. Consuming too little protein can lead to muscle loss, while consuming too much may strain the kidneys. Therefore, 1.5 grams per kilogram of body weight strikes a balance for most adults looking to support their muscle health.
3. Which word in the sentence "The quick brown fox jumps over the lazy dog" demonstrates alliteration?
- A. quick
- B. brown
- C. fox
- D. jumps
Correct answer: A
Rationale: Alliteration is the repetition of the first consonant sound of words close together. In this case, "quick" and "brown" both start with the "k" sound.
4. When writing a blog post, consider including:
- A. Long, detailed paragraphs for comprehensive coverage.
- B. Frequent use of emojis and informal slang for a casual tone.
- C. Engaging headlines, subheadings, and bullet points for scannability.
- D. ense academic vocabulary to sound intellectual.
Correct answer: C
Rationale: Blog posts require engaging formatting and concise writing for readers who scan and skim. Headlines, subheadings, and bullet points improve readability.
5. Which of the following is an example of a nosocomial infection?
- A. The common cold contracted from a family member
- B. A urinary tract infection (UTI) acquired during a catheterization
- C. A fungal skin infection from contaminated soil
- D. Food poisoning from undercooked chicken
Correct answer: B
Rationale: Rationale: A nosocomial infection, also known as a healthcare-associated infection (HAI), is an infection that is acquired in a healthcare setting. In this case, a UTI acquired during a catheterization procedure is a classic example of a nosocomial infection. Catheterization involves the insertion of a tube into the urinary tract, which can introduce bacteria into the urinary system and lead to an infection. Nosocomial infections are a significant concern in healthcare settings due to the potential for increased morbidity, mortality, and healthcare costs. Let's review the other options: A) The common cold contracted from a family member - This is not a nosocomial infection as it is acquired outside of a healthcare setting. C) A fungal skin infection from contaminated soil - This is not a nosocomial infection as it is acquired from environmental exposure, not in a healthcare setting.
6. What is the work done by a force of 20 N acting on an object that moves 5 meters in the direction of the force?
- A. 100 Joules (J)
- B. 25 Joules (J)
- C. 4 Joules (J)
- D. Work cannot be determined without knowing the object's mass.
Correct answer: A
Rationale: Work is defined as the force applied multiplied by the distance moved in the direction of the force. Work = force x distance = 20 N x 5 m = 100 J.
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