Logo

Nursing Elites

ATI TEAS 7

Chemistry

1. The energy released during a chemical reaction is called:

Correct answer: D

Rationale: Exothermic means "outward heat," indicating energy is released during the reaction.

2. What is the process by which RNA molecules are modified after transcription but before translation?

Correct answer: B

Rationale: Rationale: A) Replication: Replication is the process by which DNA is copied to produce a new DNA molecule. This process does not involve RNA molecules. B) Splicing: Splicing is the process by which non-coding regions (introns) are removed from pre-mRNA and the remaining coding regions (exons) are joined together to form mature mRNA. This process occurs after transcription but before translation. C) Editing: While RNA molecules can undergo editing processes such as RNA editing, this term is not commonly used to describe the modification of RNA molecules after transcription. D) Packaging: Packaging refers to the process by which DNA is condensed and organized into chromatin in eukaryotic cells. This term is not typically used to describe the modification of RNA molecules after transcription.

3. What is the difference between a sensory neuron and a motor neuron?

Correct answer: A

Rationale: The correct answer is A because sensory neurons are responsible for carrying signals from sensory receptors towards the central nervous system (brain and spinal cord), allowing us to perceive sensations such as touch, taste, smell, sight, and sound. On the other hand, motor neurons carry signals from the central nervous system to muscles and glands, enabling movement and responses. Therefore, sensory neurons carry signals away from the brain, while motor neurons carry signals towards the brain, making option A the most accurate choice among the options provided.

4. Which of the following is the smallest unit of matter?

Correct answer: B

Rationale: An atom is the fundamental building block of matter, while molecules are formed by the combination of atoms.

5. Vaccines work by:

Correct answer: B

Rationale: The correct answer is B: Introducing weakened or inactive versions of pathogens to trigger an immune response. Vaccines work by exposing the immune system to a harmless version of a pathogen, which allows the body to recognize and develop a defense against the pathogen without causing illness. This process stimulates the immune system to produce memory cells that can quickly recognize and attack the pathogen if encountered in the future. Vaccines do not directly kill pathogens (option A) or immediately stimulate the production of specific antibodies (option C). Therefore, option B is the most accurate description of how vaccines work.

6. Which statement is TRUE about valence electrons?

Correct answer: C

Rationale: They are most likely to participate in chemical bonding - Valence electrons occupy the outermost shell and are readily involved in forming bonds with other atoms.

Similar Questions

Which statement is TRUE about valence electrons?
Glands that release hormones directly into the bloodstream without ducts are called:
Which of the following conclusions of Ms. Castro about leadership characteristics is TRUE?
The phrase "a bold new world" is an example of
Which sentence uses the possessive apostrophe correctly?
1. An object is initially at rest. Which of the following will definitely NOT cause it to move?

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