Logo

Nursing Elites

ATI TEAS 7

English Grammar

1. Which sentence uses the phrase "by the way" correctly?

Correct answer: C

Rationale: Option C introduces additional information that is not directly related to the previous sentence, making it a natural use of "by the way."

2. What happens during a physical change in matter?

Correct answer: C

Rationale: During a physical change in matter, the original substance undergoes a change in its physical state or appearance without any change in its chemical composition. This means that the original substance can be recovered by physical means, such as melting, freezing, boiling, or condensing. No new substance is formed (option A), the chemical composition remains the same (option B), and energy changes can occur but are not a defining characteristic of a physical change (option D).

3. Vacuoles are large sacs for storage in plant cells. What is their main function in animal cells?

Correct answer: B

Rationale: Vacuoles in plant cells are primarily used for storage of water, nutrients, and waste products. In animal cells, vacuoles are smaller and serve various functions, including waste storage and disposal. Option B, 'Waste storage and disposal,' is the correct answer because vacuoles in animal cells help maintain cellular homeostasis by storing and breaking down waste materials. This process aids in detoxification and maintaining proper cellular function in animal cells, similar to the role of vacuoles in plant cells.

4. Deficiency in which vitamin can lead to a condition called pernicious anemia, affecting vitamin B12 absorption in the digestive system?

Correct answer: B

Rationale: The correct answer is B: Vitamin B12 (cobalamin). Pernicious anemia is a condition caused by a deficiency in vitamin B12, which is essential for the production of red blood cells and for the proper functioning of the nervous system. This vitamin is primarily absorbed in the digestive system, particularly in the ileum of the small intestine. In pernicious anemia, there is a lack of intrinsic factor, a protein produced by the stomach, which is necessary for the absorption of vitamin B12. Deficiencies in other vitamins like Vitamin A, Vitamin D, or Vitamin E do not directly lead to pernicious anemia. Therefore, the correct answer is Vitamin B12.

5. What is the role of RNA interference in silencing genes?

Correct answer: C

Rationale: Rationale: RNA interference (RNAi) is a biological process that involves the silencing of gene expression by inhibiting the translation of mRNA or by degrading mRNA molecules. This mechanism plays a crucial role in regulating gene expression and can be used to selectively silence specific genes. By interfering with the expression of specific genes, RNAi can downregulate protein production from those genes. Therefore, option C, "Inhibits the expression of specific genes," is the correct role of RNA interference in silencing genes.

6. What are the different types of electromagnetic waves based on their wavelengths and frequencies?

Correct answer: A

Rationale: Electromagnetic waves are classified based on their wavelengths and frequencies. Visible light, X-rays, radio waves, and gamma rays are all examples of electromagnetic waves with different wavelengths and frequencies. Sound waves, water waves, seismic waves, and shock waves are not electromagnetic waves but rather mechanical waves. Longitudinal waves, transverse waves, mechanical waves, and non-mechanical waves are classifications based on the direction of particle displacement and do not represent types of electromagnetic waves.

Similar Questions

What are the different types of electromagnetic waves based on their wavelengths and frequencies?
Simplify the expression: -5 + (-8)
What tool helps scientists identify and classify organisms based on their shared characteristics?
What is the process of breaking down fatty acids into acetyl-CoA, a key molecule in cellular respiration, called?
Which organ is responsible for filtering blood and removing waste products?
What is the SI unit of measurement for acceleration?

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