Q: Which of the following equations correctly represents the general formula for aerobic cellular respiration?

$$\mathrm{C_6H_{12}O_6$} + 6\ \mathrm{O_2$} \rightarrow 6\ \mathrm{CO_2$} + 6\ \mathrm{H_2O} + \text{energy (ATP)}$$

Question 1

Which of the following best describes the primary function of the small intestine in the digestive system?

Accepted Answer

Absorption of nutrients and most chemical digestion

Question 2

A patient has a deficiency in pancreatic lipase. Which of the following would most likely be impaired?

Accepted Answer

Breakdown of triglycerides into fatty acids and monoglycerides

Question 3

Which hormone is primarily responsible for stimulating the release of bile from the gallbladder in response to fatty chyme entering the duodenum?

Accepted Answer

Cholecystokinin (CCK)

Question 4

A person consumes a meal high in carbohydrates. Which of the following best describes the sequence of events for carbohydrate digestion and absorption?

Accepted Answer

Salivary amylase begins digestion in the mouth, pancreatic amylase continues in the small intestine, and monosaccharides are absorbed into the blood.

Question 5

Which of the following equations correctly represents the general formula for aerobic cellular respiration?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} + 6\ \mathrm{O_2$} ightarrow 6\ \mathrm{CO_2$} + 6\ \mathrm{H_2O} + 	ext{energy (ATP)}$$

Question 6

A patient is unable to produce intrinsic factor in the stomach. Which nutrient will they have difficulty absorbing, and what is the likely consequence?

Accepted Answer

Vitamin B12; pernicious anemia

Question 7

Which of the following best explains the difference between catabolism and anabolism?

Accepted Answer

Catabolism breaks down molecules to release energy, while anabolism uses energy to build molecules.

Question 8

A patient has a blockage in the common bile duct. Which of the following digestive processes would be most directly affected?

Accepted Answer

Emulsification and absorption of dietary fats

Question 9

Which of the following statements about the lymphatic system is correct?

Accepted Answer

The lymphatic system returns excess interstitial fluid to the bloodstream.

Question 10

Which of the following best describes the role of helper T cells in the immune response?

Accepted Answer

They activate both B cells and cytotoxic T cells by releasing cytokines.

Question 11

A newborn receives antibodies from its mother through breast milk. This is an example of which type of immunity?

Accepted Answer

Passive natural immunity

Question 12

Which of the following best describes the function of the placenta during pregnancy?

Accepted Answer

It facilitates the exchange of nutrients, gases, and wastes between mother and fetus.

Question 13

During the ovarian cycle, which hormone surge triggers ovulation?

Accepted Answer

Luteinizing hormone (LH)

Question 14

Which of the following best explains why fats yield more ATP per gram than carbohydrates during metabolism?

Accepted Answer

Fats have more carbon-hydrogen bonds, which release more energy when oxidized.

Question 15

A patient is diagnosed with Type 1 diabetes mellitus. Which of the following best describes the underlying problem?

Accepted Answer

Insufficient insulin production by the pancreas

Question 16

Which of the following best describes the process of spermatogenesis?

Accepted Answer

Formation of sperm cells from spermatogonia through meiosis

Question 17

Which of the following is a correct sequence of events in the inflammatory response?

Accepted Answer

Vasodilation, increased capillary permeability, phagocyte migration

Question 18

Which of the following best describes the function of surfactant in the lungs?

Accepted Answer

It decreases the surface tension of alveolar fluid, preventing alveolar collapse.

Question 19

Which of the following best explains the difference between active and passive immunity?

Accepted Answer

Active immunity results from exposure to an antigen and the body's own immune response, while passive immunity results from receiving antibodies produced by another individual.

Exam 4 Study Guide: Digestive, Reproductive, and Lymphatic/Immune Systems

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