which of the following is an example of a flat bone
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ATI TEAS 7

TEAS Practice Test Science

1. Which of the following is an example of a flat bone?

Correct answer: B

Rationale: The correct answer is B, the Scapula. Flat bones, such as the scapula, are thin, flattened bones that provide protection to internal organs and serve as attachment points for muscles. The other choices, femur, humerus, and tibia, are examples of long bones, which are characterized by their elongated structure and are primarily involved in supporting weight and facilitating movement.

2. Which structure in the respiratory system is responsible for preventing food and liquids from entering the trachea during swallowing?

Correct answer: B

Rationale: The larynx, housing the epiglottis, a flap of tissue, is the structure responsible for preventing food and liquids from entering the trachea during swallowing. It acts as a protective barrier, covering the trachea to ensure that ingested substances are directed to the esophagus. The bronchi are the primary airway passages that branch from the trachea into the lungs. Alveoli are tiny air sacs in the lungs where gas exchange occurs, facilitating the exchange of oxygen and carbon dioxide. The pharynx is the passage connecting the mouth and nasal cavity to the esophagus and trachea.

3. What is the endoplasmic reticulum?

Correct answer: A

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

4. Which of the following best describes the statement: 'This flower is dead; someone must have forgotten to water it'?

Correct answer: C

Rationale: The correct answer is C - 'An inference'. An inference is a conclusion drawn based on evidence and reasoning, not directly observed facts. In this statement, the conclusion that someone must have forgotten to water the flower is inferred from the observed fact that the flower is dead. Choice A - 'A classification' is incorrect because the statement does not categorize or classify the flower in any way. Choice B - 'An observation' is incorrect because it does not involve interpreting or drawing a conclusion from the observed fact. Choice D - 'A collection' is incorrect as it does not relate to the process of drawing a conclusion based on evidence.

5. Which types of molecules can move through a cell membrane by passive transport?

Correct answer: C

Rationale: The correct answer is C: Oxygen. Small, non-polar molecules like oxygen can easily pass through the cell membrane by passive transport as they move down their concentration gradient without the need for energy input. Complex sugars (choice A) are typically too large to pass through the membrane by passive transport. Non-lipid soluble molecules (choice B) may require active transport mechanisms. Choice D describes active transport, where molecules move against their concentration gradient, requiring energy input.

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