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Nursing Elites

ATI TEAS 7

Nursing Leadership and Management

1. In a horizontal chart, the lowest level worker is located at the

Correct answer: B

Rationale: In a horizontal chart, the lowest level worker is typically positioned at the leftmost side, with higher-level workers placed to the right. This arrangement signifies hierarchy, with the top level usually being on the rightmost side. Therefore, the correct answer is B: 'Middle,' as the lowest level worker is situated towards the left of the chart, not the extreme left or right. This positioning helps visually represent the organization's structure and indicates the progression from lower to higher levels as one moves from left to right on the chart.

2. What kind of bond links amino acids together?

Correct answer: D

Rationale: Rationale: Amino acids are linked together by covalent bonds to form proteins. A covalent bond is a strong chemical bond formed by the sharing of electrons between atoms. In the case of amino acids, the covalent bond that links them together is called a peptide bond. This bond forms between the amino group of one amino acid and the carboxyl group of another amino acid, resulting in the formation of a peptide chain. Hydrogen bonds, ionic bonds, and disulfide bonds can also play roles in protein structure and stability, but the primary bond linking amino acids together in a protein chain is the covalent peptide bond.

3. Which hormone, produced by the pancreas, acts in opposition to insulin by increasing blood sugar levels?

Correct answer: b

Rationale: The correct answer is B: Glucagon. Glucagon is a hormone produced by the pancreas that acts in opposition to insulin. When blood sugar levels are low, glucagon stimulates the liver to convert stored glycogen into glucose, which raises blood sugar levels. Insulin, on the other hand, lowers blood sugar levels by promoting the uptake and storage of glucose. Cortisol, produced by the adrenal glands, plays a role in stress response and metabolism but does not directly regulate blood sugar levels. Thyroxine, produced by the thyroid gland, regulates metabolism but does not directly affect blood sugar levels. Therefore, glucagon is the hormone that acts in opposition to insulin by increasing blood sugar levels.

4. Which of the following is NOT a type of chemical bond?

Correct answer: D

Rationale: Although gravity exists, it's not considered a chemical bond responsible for holding atoms together within molecules.

5. Which structure connects a muscle to a bone, allowing movement to occur at a joint?

Correct answer: a

Rationale: The correct answer is A: Tendon. Tendons are fibrous connective tissues that connect muscles to bones. They play a crucial role in allowing movement to occur at joints by transmitting the force generated by the muscle to the bone, resulting in movement. Ligaments (option B) connect bone to bone, providing stability to joints. Cartilage (option C) is a smooth, flexible tissue that covers the ends of bones and acts as a cushion. Bursa (option D) is a small fluid-filled sac that reduces friction between tissues. Therefore, tendons are specifically designed to connect muscles to bones for movement at joints.

6. Which vitamin is essential for proper absorption of calcium and plays a role in lung function?

Correct answer: C

Rationale: The correct answer is C, Vitamin D. Vitamin D is essential for the proper absorption of calcium in the intestines, which is crucial for maintaining strong bones and teeth. Additionally, Vitamin D plays a role in lung function by supporting respiratory health and reducing inflammation in the lungs. Vitamin A is important for vision and immune function, Vitamin B12 is necessary for red blood cell formation and neurological function, and Vitamin E is an antioxidant that helps protect cells from damage.

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