Logo

Nursing Elites

ATI TEAS 7

Chemistry

1. Which of the following is an example of a chemical change?

Correct answer: C

Rationale: Rusting is a chemical reaction where iron reacts with oxygen and water to form iron oxide (rust).

2. What property of a substance remains constant regardless of the amount of the substance present?

Correct answer: c

Rationale: Density remains constant for a specific substance regardless of the quantity present. It's the mass per unit volume and remains the same for a substance.

3. The stratum corneum, the outermost layer of the epidermis, is primarily composed of:

Correct answer: A

Rationale: The correct answer is A: 'Keratinized dead cells.' The stratum corneum is the outermost layer of the epidermis and is mainly composed of keratinized dead cells. These cells are flattened, fully keratinized, and provide a protective barrier for the skin against environmental factors such as pathogens, UV radiation, and water loss. Melanocytes (Option B), Langerhans cells (Option C), and Merkel cells (Option D) are all important components of the epidermis but are not the primary constituents of the stratum corneum. Melanocytes produce melanin, Langerhans cells are involved in the immune response, and Merkel cells are associated with the sense of touch.

4. Which division of the autonomic nervous system is responsible for the "rest and digest" response, promoting relaxation and conservation of energy?

Correct answer: b

Rationale: The correct answer is B, the parasympathetic nervous system. This division of the autonomic nervous system is responsible for the "rest and digest" response, promoting relaxation and conservation of energy. When activated, it slows the heart rate, increases digestion, and helps the body rest and recover. The sympathetic nervous system, on the other hand, is responsible for the "fight or flight" response, preparing the body for action. The somatic nervous system controls voluntary movements, and the central nervous system consists of the brain and spinal cord, coordinating all nervous system functions.

5. What is the SI unit of measurement for momentum?

Correct answer: b

Rationale: Momentum is measured in kilogram-meter per second (kg·m/s).

6. What property of a substance remains constant regardless of changes in its location in the universe?

Correct answer: a

Rationale: Mass is an intrinsic property of matter and remains constant regardless of its location.

Similar Questions

What property of a substance remains constant regardless of changes in its location in the universe?
What is the myelin sheath and what does it do?
Which of the following is NOT a source of genetic variation in a population?
What is the relationship between force and acceleration according to Newton's second law?
Which sentence uses parallel structure correctly?
How can you differentiate between a bacterial and viral infection based solely on symptoms?

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