1. Maintaining good muscle strength and flexibility as we age becomes important to avoid:

A. Headaches
B. Falls
C. Anxiety
D. Common cold

Correct answer: B

Rationale: The correct answer is B: 'Falls.' Maintaining good muscle strength and flexibility as we age is crucial for preventing falls, which become more common with age and can lead to serious injuries such as fractures. Strong muscles and good flexibility help in maintaining balance and stability, reducing the risk of falls. Headaches, anxiety, and the common cold are not directly related to muscle strength and flexibility, making them less likely to be avoided by focusing on these aspects of physical health.

2. Which of the following statements about prions is TRUE?

A. They are composed of proteins only
B. They are easily destroyed by common disinfectants
C. hey are a type of antibiotic
D. They are a live organism

Correct answer: A

Rationale: Rationale: A) This statement is true. Prions are infectious agents composed entirely of protein, lacking nucleic acids such as DNA or RNA. They are known for causing neurodegenerative diseases in animals and humans. B) This statement is false. Prions are not easily destroyed by common disinfectants due to their unique structure and resistance to conventional sterilization methods. C) This statement is false. Prions are not a type of antibiotic. They are a distinct class of infectious agents. D) This statement is false. Prions are not live organisms but rather misfolded proteins that can induce abnormal folding in normal proteins, leading to disease.

3. Which of the following is evidence that the controlling process is effective?

A. The things that were planned are done
B. Physicians do not complain.
C. Employees are contended
D. There is an increase in customer satisfaction rate.

Correct answer: A

Rationale: The correct answer is A: 'The things that were planned are done.' This is evidence that the controlling process is effective because it indicates that the organization is able to execute its plans successfully. When planned tasks and activities are completed as intended, it shows that the controlling function is ensuring that operations are on track and that deviations are being corrected. The completion of planned tasks also demonstrates that resources are being effectively utilized and that performance is being monitored and controlled. The other options do not directly relate to the effectiveness of the controlling process. Physicians not complaining, employees being contented, and an increase in customer satisfaction rate could be influenced by various factors and may not necessarily be solely attributed to the effectiveness of the controlling process.

4. What is the significance of cell division?

A. Growth and repair of tissues
B. Sexual reproduction
C. Genetic diversity
D. All of the above

Correct answer: D

Rationale: Cell division is a fundamental process that is essential for the growth, repair, and reproduction of all living organisms. It plays a crucial role in ensuring that organisms maintain their proper size and shape, and it allows for the replacement of damaged or worn-out cells. Cell division is also essential for sexual reproduction, as it is the process by which haploid gametes (sex cells) are produced. These gametes fuse during fertilization to form a diploid zygote, which ultimately gives rise to a new organism.

5. What is the unit of measurement for density?

A. Grams per liter (g/L)
B. Kilograms per cubic meter (kg/m³)
C. Pounds per square inch (psi)
D. Newtons per meter (N/m)

Correct answer: A

Rationale: Density is defined as mass per unit volume. The most commonly used unit for density in the metric system is grams per liter (g/L). Kilograms per cubic meter (kg/m³) is also a common unit for density, but grams per liter is more frequently used in everyday measurements. Pounds per square inch (psi) is a unit of pressure, not density. Newtons per meter (N/m) is a unit of force per unit length, not density.

6. What is the function of the Golgi apparatus?

A. Breaking down and recycling cellular waste
B. Packaging and transporting proteins and lipids
C. Generating energy through cellular respiration
D. Translating DNA into proteins

Correct answer: B

Rationale: The correct answer is B: Packaging and transporting proteins and lipids. The Golgi apparatus plays a crucial role in processing, packaging, and distributing proteins and lipids synthesized by the cell. It modifies these molecules and directs them to their appropriate destinations within the cell or for secretion outside the cell. This function is essential for maintaining the proper functioning of the cell and coordinating various cellular processes. Options A, C, and D are incorrect as they describe functions carried out by other cellular organelles, highlighting the specificity and importance of the Golgi apparatus in protein and lipid trafficking.