ATI TEAS 7
Anatomy
1. What is the main difference between white and brown adipose tissue?
- A. Location only
- B. Function and energy metabolism
- C. Color only
- D. Both white and brown have the same function
Correct answer: B
Rationale: The main difference between white and brown adipose tissue lies in their function and energy metabolism. White adipose tissue is primarily involved in energy storage, while brown adipose tissue is responsible for energy expenditure through thermogenesis. Brown adipose tissue contains a higher density of mitochondria and a unique protein called uncoupling protein 1 (UCP1) that allows for the generation of heat. This key distinction in function and energy metabolism sets white and brown adipose tissue apart, making option B the correct answer.
2. A scientist observes a new species of bird with uniquely shaped wings. They hypothesize that the wing shape allows for superior gliding ability. Which observation would most strongly support this hypothesis?
- A. The bird is found in mountainous regions.
- B. The bird has feathers with low friction.
- C. The bird can fly long distances without flapping.
- D. The bird's wing muscles are stronger than other birds.
Correct answer: C
Rationale: Direct observation of gliding ability directly tests the hypothesis about the wing shape's function. Other observations might be relevant but provide less direct evidence.
3. Which verb tense best fits the blank: "By next month, she _____ the project for a year."
- A. will have been working on
- B. will work on
- C. has been working on
- D. had worked on
Correct answer: C
Rationale: The sentence emphasizes the completed duration of the project by next month, requiring the present perfect continuous tense.
4. Which form of energy is associated with the motion of an object?
- A. Kinetic energy
- B. Potential energy
- C. Thermal energy
- D. Electrical energy
Correct answer: a
Rationale: Kinetic energy is the energy of motion possessed by an object.
5. The free edges of your fingernails and toenails are technically called the:
- A. Lunula (The lunula is the white crescent moon shape at the base of the nail)
- B. Matrix (The matrix is the area under the nail where new nail cells are produced)
- C. Hyponychium (This is the skin under the free edge of the nail)
- D. Free edge
Correct answer: D
Rationale: The free edges of your fingernails and toenails are the parts that extend beyond the fingertip or toe. These edges are commonly referred to simply as the "free edge" because they are not attached to the skin. The lunula is the white crescent moon shape at the base of the nail, the matrix is the area under the nail where new nail cells are produced, and the hyponychium is the skin under the free edge of the nail. Therefore, the correct answer is D.
6. Which statement accurately describes the periodic trends in atomic radius?
- A. Increases down a group and decreases across a period
- B. Decreases down a group and increases across a period
- C. Remains constant throughout the table
- D. Fluctuates unpredictably based on individual elements
Correct answer: A
Rationale: Moving down a group, additional electron shells increase the distance from the nucleus, leading to larger atomic radii. Moving across a period, the number of electron shells remains constant, but the increasing nuclear charge pulls electrons closer, resulting in smaller radii.
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