Logo

Nursing Elites

ATI TEAS 7

Biology

1. What is the name of the structure that packages DNA in eukaryotic cells?

Correct answer: A

Rationale: Rationale: - A nucleosome is the basic structural unit of DNA packaging in eukaryotic cells. It consists of DNA wrapped around a core of histone proteins. - Chromatin refers to the complex of DNA and proteins found in the nucleus of a eukaryotic cell, including nucleosomes. - Histones are the proteins around which DNA is wrapped to form nucleosomes. - Centromere is a region of a chromosome where the two sister chromatids are joined and to which spindle fibers attach during cell division.

2. Which of the following is NOT a property of a catalyst?

Correct answer: D

Rationale: A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. It remains unchanged after the reaction, which eliminates option B. A catalyst works by lowering the activation energy required for the reaction to occur, which eliminates option C. A catalyst does not create new products in a reaction; it only facilitates the conversion of reactants into products more efficiently. Therefore, option D is NOT a property of a catalyst.

3. Which of the following is the main function of the kidneys?

Correct answer: A

Rationale: Rationale: A) To filter waste products from the blood: The main function of the kidneys is to filter waste products, excess ions, and water from the bloodstream to form urine, which is then excreted from the body. This process helps maintain the body's internal environment by regulating the balance of electrolytes, fluid volume, and pH levels. B) To produce urine: While the kidneys do produce urine as a result of filtering the blood, the primary function is to filter waste products rather than solely producing urine. C) To regulate blood pressure: The kidneys do play a role in regulating blood pressure by controlling the volume of blood and the concentration of electrolytes in the body, but their main function is waste filtration. D) To produce hormones that help to control blood sugar levels: While the kidneys do produce hormones like erythropoietin and renin that play a role in various physiological processes, such as red

4. Which property of a substance measures the amount of matter per unit volume?

Correct answer: a

Rationale: Density is the property that measures the amount of matter (mass) per unit volume of a substance. It is calculated as mass divided by volume.

5. Which mineral is crucial for bone strength and is stored in bones and teeth?

Correct answer: A

Rationale: The correct answer is A: Calcium. Calcium is crucial for bone strength as it is a key mineral stored in bones and teeth. It plays a vital role in maintaining bone density and strength, helping to prevent conditions like osteoporosis. Without an adequate intake of calcium, individuals may be at risk of developing weak and brittle bones. Iron (B), Magnesium (C), and Potassium (D) are important minerals for various bodily functions, but they are not primarily responsible for bone strength and storage in bones and teeth.

6. Which of the following minerals is important for bone health and is stored in bones by the skeletal system?

Correct answer: C

Rationale: The correct answer is C: Calcium. Calcium is essential for maintaining strong and healthy bones. It is a key mineral stored in bones by the skeletal system, where it provides structural support and strength. Adequate calcium intake is crucial for preventing bone diseases like osteoporosis and ensuring proper bone formation and density. Iron (A), Sodium (B), and Magnesium (D) are important minerals for various bodily functions but are not primarily responsible for bone health and storage in bones by the skeletal system.

Similar Questions

Which of the following minerals is important for bone health and is stored in bones by the skeletal system?
What is the relationship between the frequency and wavelength of a wave?
Which of the following is the main organ responsible for absorbing nutrients?
What is the process of cells becoming specialized to perform specific functions called?
Which property of a wave represents the distance between two successive identical points on a wave?
The phrase "disruptions to ecosystems" refers to

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
$1/ 30 days

  • 3,000 Questions with answers
  • 30 days access

Other Courses