ATI TEAS 7
ATI TEAS 7 science review
1. Which vitamin deficiency can lead to kidney stones?
- A. Vitamin A
- B. Vitamin B12
- C. Vitamin D
- D. Vitamin K
Correct answer: C
Rationale: The correct answer is Vitamin D. Vitamin D deficiency can lead to kidney stones because Vitamin D helps regulate calcium levels in the body. Low levels of Vitamin D can result in increased calcium absorption from the intestines, leading to higher levels of calcium in the urine, which can form kidney stones. Choices A, B, and D are incorrect as deficiencies in these vitamins are not directly associated with kidney stone formation.
2. Which of the following organs is responsible for the mechanical breakdown of food into smaller pieces?
- A. Esophagus
- B. Stomach
- C. Small intestine
- D. Mouth
Correct answer: D
Rationale: The correct answer is D: Mouth. The mouth is responsible for the mechanical breakdown of food through chewing and mixing with saliva. This process is essential for breaking down food into smaller, more digestible pieces before swallowing. The esophagus (choice A) is a muscular tube that transports food from the mouth to the stomach and does not participate in the mechanical breakdown of food. The stomach (choice B) primarily functions to further break down food using acids and enzymes, rather than mechanical means. The small intestine (choice C) is responsible for absorbing nutrients from the digested food, not for the mechanical breakdown of food.
3. The Minimum Inhibitory Concentration (MIC) of an antibiotic refers to:
- A. The lowest concentration that kills bacteria
- B. The dose required for 50% bacterial inhibition
- C. The time it takes for an antibiotic to work
- D. The spectrum of bacteria the antibiotic targets
Correct answer: B
Rationale: A) The lowest concentration that kills bacteria is known as the Minimum Bactericidal Concentration (MBC), not the Minimum Inhibitory Concentration (MIC). MIC is the lowest concentration of an antibiotic that inhibits visible growth of bacteria. B) The MIC of an antibiotic is the concentration at which bacterial growth is inhibited by 50%. This concentration is used to determine the effectiveness of an antibiotic against a specific bacterium. C) The time it takes for an antibiotic to work is not described by the MIC. MIC is a measure of concentration, not time. D) The spectrum of bacteria the antibiotic targets is not defined by the MIC. The MIC value is specific to a particular antibiotic and bacterium, regardless of the spectrum of activity of the antibiotic.
4. Which of the following is the control group in the above experiment?
- A. tank A
- B. tank B
- C. tank C
- D. There is no control group in this experiment.
Correct answer: D
Rationale: The correct answer is D: There is no control group in this experiment. A control group is a group in an experiment that does not receive the treatment being studied in order to serve as a baseline for comparison. In this case, all three tanks (A, B, and C) are being treated with different amounts of fertilizer, and there is no group that is left untreated to serve as a control for comparison. Choices A, B, and C are incorrect because they all represent tanks that are part of the experimental groups receiving different amounts of fertilizer, thus none of them can be considered the control group.
5. Which part of the spinal cord is responsible for transmitting sensory information from the body to the brain?
- A. Dorsal root
- B. Ventral root
- C. Gray matter
- D. White matter
Correct answer: A
Rationale: The correct answer is the dorsal root. The dorsal root of the spinal cord contains sensory nerve fibers that transmit sensory information from the body to the brain. This information includes touch, pain, temperature, and proprioception. The ventral root, on the other hand, contains motor nerve fibers responsible for carrying signals from the brain to the muscles and glands, controlling movement and glandular functions. Gray matter, consisting mainly of cell bodies, is involved in processing and integrating sensory and motor information within the spinal cord. White matter is primarily composed of myelinated axons that facilitate communication between different regions of the nervous system, allowing signals to travel efficiently within the spinal cord and between the brain and other parts of the body. Therefore, the dorsal root is specifically associated with transmitting sensory information, making it the correct answer in this context.
Similar Questions
Access More Features
ATI TEAS Premium Plus
$149.99/ 90 days
- Actual ATI TEAS 7 Questions
- 3,000 questions with answers
- 90 days access
ATI TEAS Basic
$49/ 30 days
- 3,000 Questions with answers
- 30 days access