ATI TEAS 7 Science

Questions 173

ATI TEAS 7

ATI TEAS 7 Test Bank

ATI TEAS 7 Science Questions

Question 1 of 5

What is the primary function of platelets in the blood?

Correct Answer: B

Rationale: Platelets are responsible for blood clotting, which is crucial for preventing excessive bleeding when a blood vessel is injured. They adhere to the site of injury and form a plug to stop bleeding. This function is essential for maintaining hemostasis in the body. Platelets do not carry oxygen like red blood cells (Choice A), fight infection like white blood cells (Choice C), or transport nutrients like plasma (Choice D).

Question 2 of 5

What is the smallest bone in the human body?

Correct Answer: A

Rationale: The correct answer is A: Stapes. The stapes is the smallest bone in the human body, located in the middle ear. It plays a crucial role in transmitting sound vibrations to the inner ear. The other choices are incorrect because the patella is a knee bone, phalanges are finger bones, and ribs are chest bones, none of which are the smallest bone in the body. The stapes' small size and specific location make it uniquely suited for its function in hearing.

Question 3 of 5

What is the primary function of the small intestine?

Correct Answer: B

Rationale: The primary function of the small intestine is to absorb nutrients from digested food. This process involves breaking down food into smaller molecules that can be absorbed into the bloodstream for energy and growth. The small intestine has villi and microvilli that increase its surface area for efficient nutrient absorption. Choice A is incorrect because the large intestine, not the small intestine, primarily absorbs water. Choice C is incorrect as the large intestine, not the small intestine, stores waste. Choice D is incorrect because while the small intestine does produce some enzymes, its primary role is nutrient absorption.

Question 4 of 5

What is the acceleration of an object moving at a constant speed of 20 m/s if it comes to a complete stop within 5 seconds?

Correct Answer: C

Rationale: Failed to generate a rationale after 5 retries.

Question 5 of 5

Which type of cell division is responsible for growth and repair?

Correct Answer: B

Rationale: The correct answer is B: Mitosis. Mitosis is the type of cell division responsible for growth and repair in multicellular organisms. During mitosis, a cell divides into two identical daughter cells, ensuring the growth and repair of tissues. Meiosis (A) is involved in sexual reproduction, not growth or repair. Binary fission (C) is a form of asexual reproduction in prokaryotic cells, not growth or repair. Osmosis (D) is the passive movement of water across a semi-permeable membrane, not a form of cell division.

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