1. Which of the following is TRUE about functional nursing?

A. Concentrates on tasks and activities
B. Emphasizes use of group collaboration
C. One-to-one nurse-patient ratio
D. Provides continuous, coordinated and comprehensive nursing services

Correct answer: B

Rationale: The correct answer is B: "Emphasizes use of group collaboration." Functional nursing is a task-oriented approach where team members specialize in specific tasks or activities. In this model, nurses work together in groups to provide care to a larger number of patients efficiently. This differs from the one-to-one nurse-patient ratio (C) and the continuous, coordinated, and comprehensive nursing services (D). While functional nursing concentrates on tasks (A), the key feature emphasized in this care delivery model is the use of group collaboration to provide care effectively.

2. What is the medical term for ingrown hair?

A. Folliculitis
B. Hirsutism
C. Pseudofolliculitis Barbae
D. Alopecia

Correct answer: C

Rationale: The correct answer is C: 'Pseudofolliculitis Barbae.' This term specifically refers to ingrown hairs commonly seen in the beard area. Folliculitis (A) is inflammation of the hair follicles, not necessarily due to ingrown hairs. Hirsutism (B) is excessive hair growth, unrelated to ingrown hairs. Alopecia (D) is hair loss, which is also not related to ingrown hairs. Therefore, 'Pseudofolliculitis Barbae' is the medical term specifically used to describe ingrown hairs in the beard area, making it the correct answer.

3. Which type of muscle tissue has a unique branching network and is found in the heart?

A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
D. Multifidus muscle

Correct answer: B

Rationale: The correct answer is B - Cardiac muscle. Cardiac muscle is the type of muscle tissue that has a unique branching network and is specifically found in the heart. Unlike skeletal muscle, which is attached to bones and allows for voluntary movement, cardiac muscle is involuntary and contracts to pump blood throughout the body. Smooth muscle is found in organs like the intestines and blood vessels, while the multifidus muscle is a specific muscle in the back. Therefore, cardiac muscle is the appropriate choice in this scenario.

4. Which part of the brain controls balance and coordination?

A. Cerebellum
B. Hypothalamus
C. Occipital lobe
D. Corpus callosum

Correct answer: A

Rationale: Rationale: The cerebellum is the part of the brain responsible for coordinating voluntary movements, balance, and posture. It receives information from the sensory systems, the spinal cord, and other parts of the brain to regulate motor movements. The hypothalamus is involved in regulating various bodily functions such as temperature, hunger, and thirst. The occipital lobe is primarily responsible for processing visual information. The corpus callosum is a structure that connects the two hemispheres of the brain and facilitates communication between them.

5. What happens to the potential energy of an object as it falls freely near the Earth's surface?

A. Potential energy decreases
B. Potential energy increases
C. Potential energy remains constant
D. Potential energy becomes zero

Correct answer: a

Rationale: As an object falls freely, its potential energy due to gravity decreases as it gets closer to the Earth's surface.

6. Which macromolecule serves as the repository of genetic information in all living organisms?

A. Ribonucleic acid (RNA)
B. Deoxyribonucleic acid (DNA)
C. Protein
D. Carbohydrate

Correct answer: B

Rationale: Rationale: - DNA is the macromolecule that serves as the repository of genetic information in all living organisms. It carries the genetic instructions necessary for the growth, development, functioning, and reproduction of organisms. - RNA (option A) is involved in various cellular processes, including protein synthesis, but DNA is the primary molecule responsible for storing genetic information. - Proteins (option C) are essential for various cellular functions but do not serve as the primary repository of genetic information. - Carbohydrates (option D) are important for energy storage and structural support but do not store genetic information.