Question:
What are electrolytes in the body?
They are desirable but not necessary for the maintenance of life.
Proteins that are dissolved in body fluids.
Substances that dissociate in water to form charged ions.
They are vitamins and minerals required for body functions.
Answer
- Substances that dissociate in water to form charged ions.
Explanation:
An electrolyte is a substance that dissociates in water to give off ions that have the ability to conduct electricity. Examples of electrolytes includes potassium, calcium, magnesium. They are used by the body in various biochemical processes including muscle contraction, in neurons functions among others. It is this ability to carry charges that makes electrolytes the main components of an electrical signal transmission.
Question:
Which of the following is NOT a function of electrolytes?
involved with nerve activity
can provide electrical charges
composed of macronutrients
participates in muscle function
Answer
- composed of macronutrients
Explanation:
Calcium participates in muscle function by initiating muscle contraction and relaxation. Electrolytes are also involved in nerve activity, especially potassium ions which regulates the resting membrane potential of a neuron by moving out while sodium moves in. Electrolytes carry an electrical charge when dissolved in water. They are not composed of macronutrients.
Question:
Pregnancy is a taxing process and many nutrients are needed in higher volume or supplemented. Which of the following(s) are recommended?
I. Iron
II. Folate and Vitamin B12
III. Protein
IV. Omega-3 fatty acids
V. All of the above
Group of answer choices
A) II, IV
B) III
C) II, III, IV
D) V
E) I, II, III
The correct answer is D) all of the above
Explanation:
To build a growing fetus protein, iron, folate, vit b12, and omega 3 requirements are all increased as per the current scientific guidelines as they have different roles including tissue synthesis, cell differentiation, neural tube formation, and brain development.
