Place the following in correct sequence from simplest to most complex:
1. molecules
2. atoms
3. tissues
4. cells
5. organs
2-1-3-4-5
2-1-4-3-5
1-2-4-3-5
1-2-3-4-5
The Correct Answer is B
A. 2-1-3-4-5: This sequence incorrectly places tissues before cells, but tissues are composed of groups of similar cells, so cells must come first.
B. 2-1-4-3-5: Atoms combine to form molecules, molecules organize into cells, cells form tissues, and tissues assemble into organs. This sequence correctly progresses from the simplest to the most complex level of organization.
C. 1-2-4-3-5: Molecules do not precede atoms; atoms are the fundamental units that combine to form molecules. Starting with molecules makes the sequence inaccurate.
D. 1-2-3-4-5: Placing molecules before atoms and tissues before cells reverses the correct order of structural complexity in the body.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Superior: The heart is located above the stomach in the thoracic cavity, making it superior in relation to the stomach, which is in the abdominal cavity.
B. Distal: Distal refers to a position farther from the point of attachment or origin, usually in limbs, and is not appropriate for describing the heart-stomach relationship.
C. Inferior: Inferior means below another structure, which applies to the stomach relative to the heart, not the other way around.
D. Proximal: Proximal refers to a location closer to the point of attachment or origin, typically used for limbs, and does not describe the heart’s position relative to the stomach.
Correct Answer is B
Explanation
A. Sodium (atomic number 11): Sodium has one electron in its outermost shell, making it highly reactive as it tends to lose that electron to achieve a stable configuration.
B. Neon (atomic number 10): Neon has a full outer electron shell (octet), making it chemically stable and largely unreactive under normal conditions. Its electron configuration prevents it from readily forming chemical bonds.
C. Carbon (atomic number 6): Carbon has four electrons in its outer shell and typically forms covalent bonds to complete its octet, so it is chemically reactive.
D. Oxygen (atomic number 8): Oxygen has six electrons in its outer shell and is highly reactive because it seeks two additional electrons to complete its octet, often forming covalent or ionic bonds.
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