Nursing Elites

1. According to Newton's third law of motion, for every action, there is an equal and opposite ___________.

• A. Reaction
• B. Force
• C. Acceleration
• D. Momentum

Correct answer: a

Rationale: Newton's third law states that for every force or action, there is an equal and opposite reaction.

2. What property of matter remains constant regardless of changes in gravity?

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

Correct answer: a

Rationale: Mass is the measure of the amount of matter in an object and remains constant regardless of changes in gravity or location. It is an intrinsic property of matter.

3. Square: A garden bed has a side length of 8 meters. What is its perimeter?

• A. 16m
• B. 24m
• C. 32m
• D. 64m

Correct answer: D

Rationale: Since all sides are equal, multiply the side length by 4: perimeter = 4 * side length = 4 * 8m = 32m.

4. Connective tissue provides support and connects other tissues. What is the main component that gives connective tissue its strength?

• A. Collagen fibers
• B. Epithelial cells
• C. Nerve cells
• D. Blood cells

Correct answer: A

Rationale: The main component that gives connective tissue its strength is collagen fibers. Collagen is a fibrous protein that is the most abundant protein in the human body, providing tensile strength and support to tissues. Collagen fibers are arranged in a parallel fashion, giving connective tissue its resilience and ability to withstand stretching forces. Epithelial cells are not the main component of strength in connective tissue; they are specialized cells that line the surfaces of organs and structures. Nerve cells are responsible for transmitting signals and do not contribute to the strength of connective tissue. Blood cells are not structural components of connective tissue but rather play a role in transportation and immune function.

5. Which statement accurately describes cytokinesis in animal cells?

• A. Which statement accurately describes cytokinesis in animal cells?
• B. A cell plate forms in the center of the dividing cell, eventually separating the cytoplasm into two daughter cells.
• C. A cell plate forms in the center of the dividing cell, eventually separating the cytoplasm into two daughter cells.
• D. The nucleus elongates and pulls apart, physically dividing the cytoplasm into two.

Correct answer: B

Rationale: Rationale: A) This statement is a duplicate of option C and does not accurately describe cytokinesis in animal cells. B) In animal cells, during cytokinesis, a cleavage furrow forms in the center of the dividing cell. This furrow deepens and eventually pinches the cytoplasm into two daughter cells. This process is distinct from plant cells, where a cell plate forms. C) This statement is a duplicate of option A and does not accurately describe cytokinesis in animal cells. D) This statement describes the process of nuclear division (mitosis) rather than cytokinesis, which is the division of the cytoplasm.

6. Which of the following is NOT a characteristic of a chemical reaction?

• A. Formation of new substances
• B. Release or absorption of energy
• C. Change in color
• D. Change in temperature

Correct answer: C

Rationale: While color change can be an indicator of a chemical reaction, it's not always present, and some reactions occur without a visible color change.

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