ATI TEAS 7
TEAS 7 practice test free science
1. Identify the indirect object in the following sentence: 'He gave his mother a bouquet of flowers.'
- A. mother
- B. bouquet
- C. flowers
- D. gave
Correct answer: A
Rationale: In the sentence 'He gave his mother a bouquet of flowers,' the indirect object is 'his mother' because she is the recipient of the action of giving. The direct object is 'a bouquet of flowers' because it is the thing being given. The verb 'gave' is the action being performed. Choice B, 'bouquet,' is incorrect as it is the direct object, not the indirect object. Choice C, 'flowers,' is incorrect as it is part of the direct object phrase. Choice D, 'gave,' is incorrect as it is the verb indicating the action, not an object.
2. What is the shape of the DNA molecule?
- A. Linear
- B. Circular
- C. Double helix
- D. Straight chain
Correct answer: C
Rationale: The correct answer is C: Double helix. The shape of the DNA molecule is a double helix, a structure first described by James Watson and Francis Crick in 1953. This shape consists of two strands twisted around each other in a spiral. The double helix structure allows DNA to be compactly stored within the cell nucleus and provides stability to the molecule. Options (A) Linear, (B) Circular, and (D) Straight chain are incorrect as they do not accurately represent the shape of the DNA molecule. DNA is not linear but rather forms a twisted double helix; it is not circular like a ring but has a spiral structure, and it is not a straight chain but a twisted ladder-like structure.
3. A person pushes a box across a floor with a constant force. The box eventually comes to a stop due to friction. What happens to the work done by the person?
- A. It increases as the box moves further.
- B. It decreases as the box slows down.
- C. It remains constant throughout the motion.
- D. It becomes zero once the box stops.
Correct answer: D
Rationale: Work done is defined as the product of the force applied and the distance moved in the direction of the force. In this scenario, when the box comes to a stop, the displacement becomes zero, leading to zero work done by the person. Choice A is incorrect as the work done is not increasing, but rather decreasing as the box slows down. Choice B is incorrect because the work done does not decrease as the box slows down; it becomes zero when the box stops. Choice C is incorrect as the work done is not constant but decreases to zero when the box stops.
4. Water is considered a universal solvent due to its ____.
- A. Cohesion
- B. Adhesion
- C. Molarity
- D. Dilution
Correct answer: B
Rationale: The correct answer is B: Adhesion. Water's polarity allows it to dissolve many substances due to its ability to adhere to and interact with other molecules, making it an effective solvent. Cohesion refers to water molecules sticking together, molarity is a measure of concentration, and dilution refers to the process of reducing the concentration of a solute in a solution, none of which directly relate to water's role as a universal solvent.
5. Which of the following is a MAJOR consequence of a stroke?
- A. Irregular heart rhythm.
- B. Rapid weight gain or loss.
- C. Brain damage due to interrupted blood flow.
- D. Chronic fatigue and muscle weakness.
Correct answer: C
Rationale: A major consequence of a stroke is brain damage due to interrupted blood flow. Strokes occur when blood flow to the brain is blocked or reduced, leading to the death of brain cells. This interruption in blood flow results in brain damage, which can cause physical and cognitive impairments such as paralysis, speech difficulties, memory problems, and sensory disturbances. The severity and location of the stroke determine the extent of the consequences experienced by the individual. Choices A, B, and D are incorrect. Irregular heart rhythm is not a direct consequence of a stroke but may occur as a complication. Rapid weight gain or loss and chronic fatigue with muscle weakness are not typically considered major consequences of a stroke, which primarily affects the brain due to interrupted blood flow.
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