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Nursing Elites

ATI TEAS 7

Anatomy

1. Melanin, the pigment responsible for skin color, is produced by

Correct answer: B

Rationale: The correct answer is B: Melanocytes. Melanin, the pigment responsible for skin color, is produced by melanocytes, which are specialized cells located in the skin's epidermis. Melanocytes transfer melanin to keratinocytes, the predominant cell type in the epidermis, where it provides protection against UV radiation. Sebocytes produce sebum, an oily substance that helps moisturize the skin and hair. Langerhans cells are a type of immune cell that play a role in the skin's immune response. Therefore, the correct answer is B as melanocytes are specifically responsible for producing melanin.

2. What type of energy is possessed by an object due to its position or configuration?

Correct answer: c

Rationale: Potential energy is the energy possessed by an object due to its position or state.

3. Which term describes the point where parallel rays of light converge or appear to diverge from after passing through a lens or reflecting off a mirror?

Correct answer: B

Rationale: The focal length is the term that describes the point where parallel rays of light converge or appear to diverge from after passing through a lens or reflecting off a mirror. It is a crucial parameter in optics and is used to determine the magnification and image formation in optical systems. The other options (A) Aperture, (C) Refractive index, and (D) Lens thickness are not directly related to the point where parallel rays converge or diverge.

4. Ectopic pregnancy is a serious condition that occurs when a fertilized egg implants outside the uterus. What is the most common location for an ectopic pregnancy?

Correct answer: B

Rationale: The correct answer is B: Fallopian tube. The fallopian tube is the most common location for an ectopic pregnancy to occur. This is because the fertilized egg typically gets stuck or implants in the fallopian tube instead of traveling to the uterus for normal implantation. If left untreated, an ectopic pregnancy in the fallopian tube can lead to serious complications such as tubal rupture and internal bleeding. The other options (ovary, cervix, vagina) are not typical sites for implantation of a fertilized egg and are less likely to result in an ectopic pregnancy.

5. Acids are generally characterized by a sour taste and the ability to:

Correct answer: B

Rationale: Acids release hydrogen ions (H+) in solution, allowing electrical conductivity

6. In the process of cellular respiration, glucose is broken down to produce energy. What is the main waste product released?

Correct answer: B

Rationale: The correct answer is B: Carbon dioxide. During cellular respiration, glucose is broken down in the presence of oxygen to produce energy in the form of ATP. One of the main waste products released in this process is carbon dioxide. Carbon dioxide is a byproduct of the metabolic reactions occurring in cells and is expelled from the body through exhalation. Water is also produced during cellular respiration, but it is not the main waste product released. Oxygen is required for cellular respiration to occur, and protein is a macromolecule and not a waste product of cellular respiration.

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