Q: Which of the following equations correctly represents the net ATP yield from aerobic cellular respiration of one glucose molecule?

$$\text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2 \rightarrow 6\text{CO}_2 + 6\text{H}_2\text{O} + 36\text{ATP}$$

Q: Which of the following equations represents the process of anaerobic respiration in muscle cells?

$$\text{C}_6\text{H}_{12}\text{O}_6 \rightarrow 2\text{C}_3\text{H}_6\text{O}_3 + 2\text{ATP}$$

Question 1

During cellular respiration, which of the following best describes the role of oxygen in the electron transport chain?

Accepted Answer

Oxygen is the final electron acceptor, allowing the formation of water.

Question 2

A patient is experiencing rapid heart rate and dilated pupils after a car accident. Which branch of the autonomic nervous system is most likely activated?

Accepted Answer

Sympathetic nervous system

Question 3

Which of the following equations correctly represents the net ATP yield from aerobic cellular respiration of one glucose molecule?

Accepted Answer

$$	ext{C}_6	ext{H}_{12}	ext{O}_6 + 6	ext{O}_2 ightarrow 6	ext{CO}_2 + 6	ext{H}_2	ext{O} + 36	ext{ATP}$$

Question 4

Which hormone is released from the posterior pituitary and is responsible for water reabsorption in the kidneys?

Accepted Answer

Antidiuretic hormone (ADH)

Question 5

A person with type AB blood can safely receive blood from which of the following types?

Accepted Answer

Any blood type (A, B, AB, O)

Question 6

Which of the following best describes the difference between positive and negative feedback loops in the endocrine system?

Accepted Answer

Negative feedback maintains homeostasis by counteracting changes, while positive feedback amplifies changes until a specific outcome is achieved.

Question 7

Which of the following is a water-soluble hormone that acts via membrane receptors and second messengers?

Accepted Answer

Insulin

Question 8

During hemostasis, which step involves the conversion of fibrinogen to fibrin?

Accepted Answer

Coagulation

Question 9

Which of the following neurotransmitters is primarily released by postganglionic sympathetic neurons?

Accepted Answer

Norepinephrine

Question 10

A patient is unable to produce insulin. Which organ is most likely affected?

Accepted Answer

Pancreas

Question 11

Which of the following is NOT a function of white blood cells (WBCs)?

Accepted Answer

Transport of oxygen

Question 12

Which of the following best explains why blood type O is considered the universal donor?

Accepted Answer

Type O blood lacks A and B antigens, reducing the risk of recipient immune reaction.

Question 13

Which of the following equations represents the process of anaerobic respiration in muscle cells?

Accepted Answer

$$	ext{C}_6	ext{H}_{12}	ext{O}_6 ightarrow 2	ext{C}_3	ext{H}_6	ext{O}_3 + 2	ext{ATP}$$

Question 14

Which of the following cell types is responsible for the production of antibodies?

Accepted Answer

B lymphocytes (plasma cells)

Question 15

Which of the following is a correct sequence of events in hemostasis?

Accepted Answer

Vascular spasm, platelet plug formation, coagulation

Question 16

Which of the following best describes the dual innervation of organs by the autonomic nervous system?

Accepted Answer

Organs receive input from both the sympathetic and parasympathetic divisions, which often have opposing effects.

Question 17

A patient is given a drug that blocks acetylcholine receptors on the heart. What is the most likely effect?

Accepted Answer

Increased heart rate due to decreased parasympathetic activity

Question 18

Which of the following is a major function of erythrocytes?

Accepted Answer

Transport of oxygen and carbon dioxide

Question 19

Which of the following best explains the difference between anterior and posterior pituitary hormone pathways?

Accepted Answer

Anterior pituitary hormones are regulated by releasing hormones from the hypothalamus, while posterior pituitary hormones are released from axon terminals of hypothalamic neurons.

Question 20

A patient with a deficiency in leukocytes would most likely experience which of the following?

Accepted Answer

Increased risk of infection

Exam 1 Study Guide: Cell Respiration, Autonomic Nervous System, Endocrine System, and Blood

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