Nursing Elites

1. 7 is divisible by which of the following numbers?

• A. 2 only
• B. 3 only
• C. 1 and 7 only
• D. 2, 3, and 7

Correct answer: D

Rationale: Rationale: 1. 7 is divisible by 1 because every number is divisible by 1. 2. 7 is divisible by 7 because any number is divisible by itself. 3. 7 is not divisible by 2 because 7 is an odd number and not divisible by 2. 4. 7 is not divisible by 3 because the sum of the digits of 7 (7) is not divisible by 3. Therefore, 7 is divisible by 1, 7, and itself (7), making the correct answer D) 2, 3, and 7.

2. The primary function of the strong nuclear force is:

• A. Binding electrons in atomic orbitals
• B. Binding protons and neutrons within the nucleus
• C. Mediating the attractive force between opposite charges
• D. Mediating the repulsive force between like charges

Correct answer: B

Rationale: The strong nuclear force is responsible for binding protons and neutrons within the nucleus. This force is crucial for overcoming the electrostatic repulsion between positively charged protons in the nucleus, holding the nucleus together. Option A is incorrect as it refers to the role of the electromagnetic force in binding electrons in atomic orbitals. Option C describes the electromagnetic force that mediates the attraction between opposite charges, while option D refers to the electromagnetic force mediating the repulsion between like charges. Understanding the primary function of the strong nuclear force helps explain the stability and structure of atomic nuclei.

3. The axial skeleton consists of bones in the:

• A. Head, neck, and trunk
• B. Arms and legs
• C. Hands and feet
• D. All of the above

Correct answer: A

Rationale: The correct answer is A: 'Head, neck, and trunk.' The axial skeleton includes the bones along the body's central axis, comprising the skull, vertebral column, rib cage, and sternum. These bones provide structural support and protect vital organs. Choices B and C are incorrect as the arms, legs, hands, and feet are part of the appendicular skeleton. Therefore, the axial skeleton primarily encompasses the head, neck, and trunk, making option A the correct choice.

4. The control center of the cell, containing genetic information (DNA), is the:

• A. Golgi apparatus
• B. Ribosome
• C. Nucleus
• D. Endoplasmic reticulum

Correct answer: C

Rationale: The correct answer is C: Nucleus. The nucleus is the control center of the cell as it contains the cell's genetic material, DNA. It acts as the brain of the cell, regulating gene expression and controlling cell activities. The Golgi apparatus is responsible for packaging and processing proteins, the ribosomes are involved in protein synthesis, and the endoplasmic reticulum is essential for protein and lipid synthesis. However, none of these organelles house the genetic information of the cell, making the nucleus the correct answer in this case.

5. What type of bone is the kneecap (patella)?

• A. Long bone
• B. Short bone
• C. Flat bone
• D. Irregular bone

Correct answer: B

Rationale: The correct answer is B: Short bone. The kneecap, or patella, is classified as a short bone because it is roughly cube-shaped and is composed of spongy bone enclosed by a thin layer of compact bone. Short bones provide support and stability with limited motion, making them ideal for protecting joints like the knee. Long bones are typically elongated, flat bones are thin and curved, and irregular bones have complex shapes. Understanding the classification of bones can help in identifying their functions and structural characteristics.

6. Which part of the brain is responsible for processing vision?

• A. Occipital lobe
• B. Frontal lobe
• C. Temporal lobe
• D. Parietal lobe

Correct answer: A

Rationale: The correct answer is A: Occipital lobe. The occipital lobe is located at the back of the brain and is primarily responsible for processing visual information. It contains the primary visual cortex, which receives and interprets visual signals from the eyes. The frontal lobe (B) is involved in higher cognitive functions such as decision-making and problem-solving. The temporal lobe (C) plays a role in processing auditory information and memory. The parietal lobe (D) is responsible for functions like spatial awareness and sensory information processing, but not specifically vision. Therefore, the occipital lobe is the correct choice for the brain region responsible for processing vision.

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