Q: Which equation best represents the relationship between water movement and electrolyte concentration across a cell membrane?

$$\text{Water moves from areas of low solute concentration to high solute concentration via osmosis}$$

Q: Which equation best describes the calculation for blood pressure maintenance through diet?

$$\text{Blood Pressure} = \text{Cardiac Output} \times \text{Peripheral Resistance}$$

Question 1

Which of the following minerals is primarily found in the intracellular fluid and plays a key role in maintaining cell membrane potential?

Accepted Answer

Potassium

Question 2

A patient presents with muscle weakness and irregular heartbeat. Blood tests reveal low serum magnesium. Which food would be most effective in correcting this deficiency?

Accepted Answer

Leafy green vegetables

Question 3

Which vitamin acts as an antioxidant and is especially important in protecting cell membranes from oxidative damage caused by free radicals?

Accepted Answer

Vitamin E

Question 4

A deficiency in which mineral is most likely to result in goiter due to its role in thyroid hormone synthesis?

Accepted Answer

Iodine

Question 5

Which of the following statements best describes the relationship between vitamin D and calcium?

Accepted Answer

Vitamin D enhances intestinal absorption of calcium.

Question 6

Which of the following is a pro-vitamin that can be converted into an active vitamin in the body?

Accepted Answer

Beta-carotene

Question 7

A person with a diet high in processed foods is most likely to have elevated levels of which electrolyte, increasing their risk for hypertension?

Accepted Answer

Sodium

Question 8

Which of the following is a function of water in the human body?

Accepted Answer

Regulates body temperature through sweating

Question 9

Which process is responsible for the movement of water across cell membranes in response to changes in electrolyte concentration?

Accepted Answer

Osmosis

Question 10

A child is born with a neural tube defect. Which vitamin deficiency during pregnancy is most likely responsible?

Accepted Answer

Folate

Question 11

Which of the following is a rich food source of calcium?

Accepted Answer

Milk

Question 12

Which of the following statements about antioxidants is correct?

Accepted Answer

Antioxidants neutralize free radicals, reducing cellular damage.

Question 13

Which equation best represents the relationship between water movement and electrolyte concentration across a cell membrane?

Accepted Answer

$$	ext{Water moves from areas of low solute concentration to high solute concentration via osmosis}$$

Question 14

Which of the following is a function of leukocytes in the human body?

Accepted Answer

Defend against pathogens

Question 15

Which of the following would most likely decrease the risk for cancer?

Accepted Answer

Increased consumption of fruits and vegetables rich in antioxidants

Question 16

Which of the following is a heme source of iron?

Accepted Answer

Beef steak

Question 17

Which equation best describes the calculation for blood pressure maintenance through diet?

Accepted Answer

$$	ext{Blood Pressure} = 	ext{Cardiac Output} 	imes 	ext{Peripheral Resistance}$$

Question 18

Which of the following is a symptom of hypercalcemia?

Accepted Answer

Kidney stones

Question 19

Which vitamin can be synthesized in the skin upon exposure to sunlight?

Accepted Answer

Vitamin D

Question 20

Which of the following best describes the difference between osteoblasts and osteoclasts?

Accepted Answer

Osteoblasts build bone tissue, osteoclasts break down bone tissue.

Water, Electrolytes, Vitamins, Minerals, and Antioxidants: Exam 3 Study Guide

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