Question 1

Which of the following best explains why persistent high levels of testosterone can actually decrease sperm production in males?

Accepted Answer

Persistent high testosterone activates negative feedback loops that decrease the body's own testosterone production, reducing sperm production.

Question 2

A patient has a condition where their reproductive anatomy, chromosomal sex, and hormone levels do not align. What is the most accurate term for this condition?

Accepted Answer

Intersex

Question 3

Which hormone is primarily responsible for triggering ovulation in the ovarian cycle?

Accepted Answer

A surge in LH (Luteinizing Hormone)

Question 4

Which of the following statements about the roles of estrogen and progesterone is CORRECT?

Accepted Answer

Estrogen regulates the growth of the uterine lining early after menstruation, while progesterone thickens the uterine lining after ovulation.

Question 5

A person consumes a diet extremely high in sugar but low in fat. Which of the following is most likely to occur if they consistently eat excess calories?

Accepted Answer

Their liver and adipose tissue will convert excess sugar into fat, potentially leading to fatty liver disease.

Question 6

Which of the following best describes the absorption pathway of lipids after digestion in the small intestine?

Accepted Answer

Lipids are absorbed by the lacteals of the lymphatic system before entering the bloodstream.

Question 7

A patient is diagnosed with type 1 diabetes. Which of the following best explains the underlying cause?

Accepted Answer

The patient's pancreas cannot produce insulin due to destruction of insulin-producing cells.

Question 8

Which of the following statements about the circulatory system is TRUE?

Accepted Answer

Blood flows from the heart to the lungs, back to the heart, then to the body.

Question 9

Which of the following best explains why vasoconstriction increases blood pressure?

Accepted Answer

Vasoconstriction squeezes the blood vessel walls, increasing the pressure inside, similar to squeezing a balloon.

Question 10

Which of the following is a correct distinction between the ovarian and uterine cycles?

Accepted Answer

The ovarian cycle involves events in the ovary, such as follicle growth and ovulation, while the uterine cycle involves events in the uterus, such as menstruation.

Question 11

Which of the following best describes the role of bile in digestion?

Accepted Answer

Bile emulsifies fats into smaller globules, increasing surface area for lipase action.

Question 12

A person is experiencing persistent high blood sugar levels. Which hormone is most likely not functioning properly?

Accepted Answer

Insulin

Question 13

Which of the following statements about arteries and veins is CORRECT?

Accepted Answer

Arteries carry blood away from the heart, and veins carry blood toward the heart.

Question 14

Which of the following best explains why the total cross-sectional area of capillaries is very large?

Accepted Answer

There are so many capillaries that, when summed, their total cross-sectional area is very large.

Question 15

Which of the following is the correct relationship among glucose, glycogen, and glucagon?

Accepted Answer

Glucose is a carbohydrate monomer, glycogen is a storage polymer of glucose, and glucagon is a hormone that increases blood sugar.

Question 16

A person is unable to absorb water efficiently from their digestive tract. Which part of their digestive system is most likely malfunctioning?

Accepted Answer

Large intestine

Question 17

Which of the following best describes the role of gut bacteria in human digestion?

Accepted Answer

Gut bacteria help digest certain foods and may help regulate digestion.

Question 18

A person is feeling hungry even though their blood sugar is normal. Which hormone is most likely responsible for this sensation?

Accepted Answer

Ghrelin

Question 19

Which of the following best explains why veins can return blood to the heart despite having low blood pressure?

Accepted Answer

Veins have valves and use skeletal muscle contractions to help move blood toward the heart.

Question 20

Which of the following scenarios best illustrates homeostatic control of blood sugar?

Accepted Answer

A person's blood sugar rises slightly after a meal but returns to normal due to pancreatic hormone action.

BILD 2 Multicellular Life: Study Guide on Reproduction, Nutrition, and Circulation

Study Guide - Practice Questions

Study Guide - Flashcards