which vitamin requires the lymphatic system for proper absorption from the intestine
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ATI TEAS 7

TEAS version 7 quizlet science

1. Which vitamin requires the lymphatic system for proper absorption from the intestine?

Correct answer: C

Rationale: The correct answer is Vitamin D. Vitamin D requires the lymphatic system for proper absorption from the intestine. Unlike vitamins A, C, and B12, which are absorbed directly into the bloodstream, vitamin D is absorbed into the lymphatic system first before entering the bloodstream. Therefore, options A, B, and D are incorrect as they do not rely on the lymphatic system for absorption from the intestine.

2. How can the periodic table be used to predict the charge of an ion formed by an element?

Correct answer: B

Rationale: The group number of an element on the periodic table corresponds to the number of valence electrons it has. Elements in the same group tend to form ions with the same charge. For example, elements in Group 1 typically form ions with a +1 charge, while elements in Group 17 typically form ions with a -1 charge. Therefore, by identifying the group number of an element, one can predict the typical ionic charge it will form. Choices A, C, and D are incorrect because predicting the charge of an ion is mainly based on the element's position in the periodic table, particularly the group number, which indicates the number of valence electrons and the typical ionic charge it may form.

3. Which of the following substances is typically a good conductor of electricity when dissolved in water?

Correct answer: B

Rationale: Sodium chloride (table salt) is typically a good conductor of electricity when dissolved in water because it dissociates into ions (sodium cations and chloride anions) that can carry an electric current. Sugar (choice A), olive oil (choice C), and oxygen gas (choice D) do not dissociate into ions in water and therefore are not good conductors of electricity. Sugar does not dissociate into ions in water, so it cannot conduct electricity. Olive oil and oxygen gas are nonpolar substances and do not ionize in water, making them poor conductors of electricity.

4. During exercise, heart rate increases to deliver more oxygen to the body's tissues. What other cardiovascular response also increases?

Correct answer: C

Rationale: During exercise, the cardiovascular response includes an increase in blood flow to the muscles to deliver more oxygen and nutrients needed for energy production. This helps to support the increased demand for oxygen and nutrients by the working muscles. Blood pressure typically increases during exercise to help facilitate this increased blood flow to the muscles. Additionally, blood vessel diameter may widen (vasodilation) to allow for more blood flow, rather than narrow. Blood viscosity does not typically thicken during exercise.

5. It is December, and you have not yet had a lu vaccine. What should you do if you are among the people for whom a vaccine is recommended?

Correct answer: A

Rationale: If you are among the people for whom a flu vaccine is recommended, the best course of action is to call your doctor for an appointment and get the vaccine. Getting vaccinated can help protect you from getting the flu and reduce the spread of the virus to others. It is important to prioritize your health and take preventive measures, especially during the flu season.

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