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

Question 1

Which of the following best describes the role of mitochondria in cellular metabolism?

Accepted Answer

They are the primary site for ATP production via oxidative phosphorylation.

Question 2

A patient presents with a genetic disorder affecting collagen synthesis. Which tissue type is most likely to be compromised?

Accepted Answer

Connective tissue

Question 3

Which of the following best explains why phospholipids form bilayers in biological membranes?

Accepted Answer

Phospholipids have both hydrophilic heads and hydrophobic tails, causing them to arrange in bilayers.

Question 4

Which equation correctly represents the process 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 5

A burn patient has lost the epidermis and part of the dermis. Which type of burn does this represent?

Accepted Answer

Second-degree burn

Question 6

Which organelle is primarily responsible for the synthesis of proteins destined for secretion?

Accepted Answer

Rough endoplasmic reticulum

Question 7

A patient with cystic fibrosis has a mutation affecting chloride channels in epithelial cells. Which cellular structure is most likely affected?

Accepted Answer

Plasma membrane

Question 8

Which of the following best describes the function of GAGs (glycosaminoglycans) in connective tissue?

Accepted Answer

They help retain water and provide resistance to compression.

Question 9

Which of the following is a function of the skin’s accessory structures?

Accepted Answer

Production of vitamin D

Question 10

A patient is diagnosed with melanoma. Which cell type is primarily affected?

Accepted Answer

Melanocytes

Question 11

Which of the following best describes the difference between simple and facilitated diffusion?

Accepted Answer

Facilitated diffusion uses membrane proteins to transport substances down their concentration gradient.

Question 12

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

Accepted Answer

Regulation of body temperature

Question 13

A patient with a deficiency in vitamin D is most likely to experience which of the following conditions?

Accepted Answer

Osteomalacia

Question 14

Which of the following best describes the function of tight junctions in epithelial tissue?

Accepted Answer

They prevent leakage of substances between cells.

Question 15

Which equation represents the calculation of osmotic pressure ($$\Pi) $$using van't Hoff's law?

Accepted Answer

$$ \Pi = iMRT $$

Question 16

A patient with a mutation in the gene coding for keratin is most likely to have defects in which structure?

Accepted Answer

Epidermis

Question 17

Which of the following best explains the role of calcium ions in muscle contraction?

Accepted Answer

Calcium ions bind to troponin, allowing actin-myosin interaction.

Question 18

A patient with hypertonic dehydration is given intravenous fluids. Which type of solution should be administered to restore normal cell volume?

Accepted Answer

Isotonic saline

Question 19

Which of the following best describes the function of the Golgi apparatus?

Accepted Answer

It modifies, sorts, and packages proteins for secretion.

Question 20

A patient with a mutation in the gene for elastin is most likely to have which clinical manifestation?

Accepted Answer

Loose, hyperextensible skin

Core Concepts in Anatomy & Physiology: Cell Biology, Tissues, Integumentary System, and Skeletal System

Guida di studio - Domande di pratica