ATI TEAS 7
physics
1. What property of a substance remains constant regardless of its location in the universe?
- A. Mass
- B. Weight
- C. Density
- D. Volume
Correct answer: a
Rationale: Mass is an intrinsic property of matter that remains constant regardless of its location in the universe.
2. 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.
3. Which phrase best describes the tone of the following sentence: "He slammed his fist on the table, his voice booming with anger."
- A. Playful
- B. Formal
- C. Agitated
- D. Melancholy
Correct answer: C
Rationale: The verbs and descriptive language convey strong emotions and agitation.
4. Which term describes the resistance of a substance to flow?
- A. Density
- B. Viscosity
- C. Conductivity
- D. Malleability
Correct answer: b
Rationale: Viscosity refers to the resistance of a substance to flow. Substances with high viscosity flow slowly, while those with low viscosity flow more easily.
5. What is the name of the sheath of connective tissue that surrounds a skeletal muscle?
- A. Epimysium
- B. Perimysium
- C. Endomysium
- D. Myofibril
Correct answer: A
Rationale: The correct answer is A: Epimysium. The epimysium is the outermost layer of connective tissue that surrounds a skeletal muscle. It provides protection and support to the muscle fibers within, as well as helps in transmitting forces generated by the muscle. Perimysium (B) is the connective tissue that surrounds bundles of muscle fibers called fascicles, while endomysium (C) is the connective tissue that surrounds individual muscle fibers. Myofibril (D) is a structure within muscle fibers that contains the contractile units responsible for muscle contraction. Therefore, in this context, the sheath of connective tissue surrounding a skeletal muscle is specifically referred to as the epimysium.
6. 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
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