which biomolecule is responsible for storage and transfer of genetic information
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Nursing Elites

ATI RN

ATI Nutrition Proctored Exam 2023

1. Which biomolecule is responsible for the storage and transfer of genetic information?

Correct answer: D

Rationale: Nucleic acids, such as DNA and RNA, are the biomolecules responsible for storing and transferring genetic information within cells. Carbohydrates, proteins, and lipids do not have this specific function. Carbohydrates are mainly used for energy storage, structural support, and cellular communication. Proteins are involved in various cellular functions such as enzymatic reactions, structural support, and signaling. Lipids play roles in energy storage, cell membrane structure, and signaling.

2. A client who was normal weight before pregnancy asks about the recommended weight gain during pregnancy. What should the nurse advise?

Correct answer: B

Rationale: The correct answer is B: 25-35 pounds. According to standard prenatal guidelines, a client with a normal pre-pregnancy weight is recommended to gain between 25-35 pounds during pregnancy. This weight gain is important for the overall health of the mother and the developing baby. Choices A, C, and D are incorrect because they do not fall within the recommended weight gain range for a client with a normal pre-pregnancy weight.

3. Each of the following describes the physiologic roles of water, except one. Which is the exception?

Correct answer: D

Rationale: The correct answer is D. Water regulates body temperature by evaporating as perspiration from the skin, not by pooling. When sweat evaporates from the skin, it takes away heat, which helps cool the body. Choices A, B, and C are correct because water acts as a solvent for chemical reactions, maintains the stability of body fluids, and enables the transport of nutrients and excretion of waste, respectively.

4. A breastfeeding mother complains that she missed her son's last two feedings and now her breasts have become full, hard, and uncomfortable. This condition is known as _____.

Correct answer: B

Rationale: Engorgement occurs when the breasts become overly full, leading to discomfort and sometimes difficulty with latching. It can be relieved by feeding or expressing milk. Mastitis, choice A, is characterized by breast inflammation usually caused by an infection. Letdown, choice C, refers to the release of milk from the breast. Galactorrhea, choice D, is the spontaneous flow of milk from the breast unassociated with childbirth or nursing.

5. Each is a physiologic role of vitamin D, except one. Which is the exception?

Correct answer: A

Rationale: The correct answer is A, Hematopoiesis. Vitamin D plays a crucial role in regulating serum calcium levels, which is essential for maintaining cardiac and neuromuscular function. Additionally, vitamin D is involved in modulating immune responses. However, hematopoiesis, the formation of red blood cells, is not a direct physiologic role of vitamin D. Therefore, hematopoiesis is the exception among the listed functions of vitamin D.

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