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

A. Protein synthesis
B. Waste storage and disposal
C. Photosynthesis
D. Cellular respiration

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.

2. What is the unit of measurement for power?

A. Joule (J)
B. Newton (N)
C. Watt (W)
D. Kilogram-meter (kgÂ·m)

Correct answer: c

Rationale: Power is measured in watts (W) in the SI unit system.

3. A reaction between an acid and a base is known as:

A. Precipitation
B. Neutralization
C. Oxidation-reduction
D. Photolysis

Correct answer: B

Rationale: When an acid and a base react, they neutralize each other's properties

4. Antibodies, crucial for immune defense, are produced by:

A. Neutrophils
B. Lymphocytes
C. Monocytes
D. Basophils

Correct answer: B

Rationale: The correct answer is B: Lymphocytes. Antibodies, also known as immunoglobulins, are produced by B lymphocytes (B cells) as a key component of the adaptive immune response. These specialized cells play a crucial role in recognizing and neutralizing pathogens, thereby providing immunity against infections. Neutrophils (A) are a type of white blood cell involved in innate immunity and phagocytosis. Monocytes (C) are another type of white blood cell that can differentiate into macrophages, which are important in phagocytosis and antigen presentation. Basophils (D) are involved in allergic responses and inflammation through the release of histamine. Lymphocytes, particularly B cells, are primarily responsible for antibody production in response to pathogens and foreign substances.

5. Which of the following statements refers to criteria?

A. Agreed on level of nursing care
B. Characteristics used to measure the level of nursing care
C. Step-by-step guidelines
D. Statement which guide the group in decision making and problem solving

Correct answer: B

Rationale: Criteria are specific characteristics or standards used to evaluate or measure the quality or level of something. In this case, statement B, 'Characteristics used to measure the level of nursing care,' correctly refers to criteria because it highlights the specific attributes that are used to assess the quality or level of nursing care provided. The other options do not directly address the concept of criteria. Option A describes an agreed-upon level of care but does not specifically refer to criteria. Option C describes step-by-step guidelines, which are more related to processes or procedures. Option D mentions statements that guide decision-making and problem-solving, which are not necessarily criteria. Therefore, option B is the most appropriate choice as it directly aligns with the definition and concept of criteria.

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

A. Mass
B. Weight
C. Density
D. Volume

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.