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

Question 1

Which of the following best describes the function of the sodium-potassium pump in cellular physiology?

Accepted Answer

It actively transports three sodium ions out of the cell and two potassium ions into the cell, helping maintain the resting membrane potential.

Question 2

During which phase of mitosis do sister chromatids separate and move toward opposite poles of the cell?

Accepted Answer

Anaphase

Question 3

Which of the following statements about glycolysis is correct?

Accepted Answer

Glycolysis is the process by which glucose is converted into pyruvate, generating ATP and NADH in the cytoplasm.

Question 4

Which enzyme is responsible for catalyzing the phosphorylation of ADP to ATP during substrate-level phosphorylation?

Accepted Answer

Kinase enzymes such as phosphoglycerate kinase

Question 5

A patient is experiencing muscle fatigue due to lactic acid buildup. Which metabolic condition is most likely responsible?

Accepted Answer

Anaerobic glycolysis in the cytoplasm

Question 6

Which of the following best defines oxidation in a biological context?

Accepted Answer

A reaction in which a substance combines with oxygen or loses electrons.

Question 7

Which layer of the skin contains the majority of sensory receptors and blood vessels?

Accepted Answer

Dermis

Question 8

Which of the following is a correct description of the 'Rule of Nines' in burn assessment?

Accepted Answer

It divides the body into regions, each representing 9% or multiples of 9% of the total body surface area to estimate burn extent.

Question 9

Which of the following is NOT a function of the integumentary system?

Accepted Answer

Production of red blood cells

Question 10

Which of the following best describes chemiosmosis in cellular respiration?

Accepted Answer

The movement of hydrogen ions across a membrane to generate ATP via ATP synthase.

Question 11

A cell is observed under a microscope and found to have homologous chromosomes aligned at the center. Which phase of meiosis is being observed?

Accepted Answer

Metaphase I

Question 12

Which of the following is a correct definition of reduction in a chemical reaction?

Accepted Answer

A decrease in positive valence or an increase in negative valence by gaining electrons.

Question 13

Which of the following is true regarding the difference between deep and epithelial wound healing?

Accepted Answer

Deep wound healing involves repair of both the dermis and epidermis, often resulting in scar formation.

Question 14

Which of the following is the most common type of skin cancer discussed in class?

Accepted Answer

Basal cell carcinoma

Question 15

Which process describes the formation of glucose from non-carbohydrate sources such as amino acids?

Accepted Answer

Gluconeogenesis

Question 16

Which of the following is a correct equation for the overall reaction of aerobic cellular respiration?

Accepted Answer

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

Question 17

Which of the following skin structures is responsible for causing 'goose bumps'?

Accepted Answer

Arrector pili muscle

Question 18

Which of the following statements about the Krebs cycle is correct?

Accepted Answer

It occurs in the mitochondrial matrix and generates NADH, FADH$$_2$$, and CO$$_2.$$

Question 19

Which of the following best describes the function of ATP synthase in cellular respiration?

Accepted Answer

It uses the proton gradient to synthesize ATP from ADP and inorganic phosphate.

Question 20

Which of the following is a correct definition of phosphorylation?

Accepted Answer

The addition of a phosphate group to a molecule, often activating or deactivating enzymes.

Core Concepts in Cellular Processes and the Integumentary System

Study Guide - Practice Questions