$$[H^+] = 1 \times 10$$^{-7}$$ \, \text{mol/L}$$

$$\text{Osmosis} \rightarrow \text{Water moves from low solute concentration to high solute concentration}$$

Question 1

Which of the following best describes the difference between pathological anatomy and physiological studies?

Accepted Answer

Pathological anatomy examines anatomical changes due to disease, while physiology investigates how body systems function.

Question 2

A patient is experiencing muscle weakness due to a lack of ATP production. Which cellular organelle is most likely malfunctioning?

Accepted Answer

Mitochondrion

Question 3

Which of the following best explains why buffers are important in blood plasma?

Accepted Answer

Buffers stabilize pH by neutralizing acids and bases.

Question 4

A person is diagnosed with osteoporosis, a condition involving decreased bone density. Which bone tissue is most affected?

Accepted Answer

Spongy bone (cancellous bone)

Question 5

Which of the following is a function of the integumentary system?

Accepted Answer

Protection against mechanical injury and pathogens

Question 6

Which equation correctly represents the neutral pH value in terms of hydrogen ion concentration?

Accepted Answer

$$[H^+] = 1 	imes 10$$^{-7}$$ \, 	ext{mol/L}$$

Question 7

A nerve cell transmits signals from the spinal cord to a muscle. Which part of the neuron is responsible for sending the signal to the muscle?

Accepted Answer

Axon

Question 8

Which of the following best describes the role of enzymes in cellular reactions?

Accepted Answer

Enzymes decrease the activation energy, speeding up reactions.

Question 9

A patient has a deficiency in vitamin D synthesis. Which layer of the skin is primarily responsible for this function?

Accepted Answer

Epidermis

Question 10

Which of the following best describes the difference between monosaccharides and polysaccharides?

Accepted Answer

Monosaccharides are simple sugars, while polysaccharides are complex carbohydrates made of many sugar units.

Question 11

Which tissue type is responsible for voluntary movement in the human body?

Accepted Answer

Skeletal muscle

Question 12

A patient presents with cyanosis, a bluish discoloration of the skin. What is the most likely underlying cause?

Accepted Answer

Decreased oxygenation of blood

Question 13

Which of the following best describes the function of the ribosome in a cell?

Accepted Answer

Protein synthesis

Question 14

Which of the following is a correct description of the anatomical position?

Accepted Answer

Standing upright, arms at sides, palms facing forward

Question 15

Which equation correctly represents the relationship between osmosis and solute concentration?

Accepted Answer

$$	ext{Osmosis} ightarrow 	ext{Water moves from low solute concentration to high solute concentration}$$

Question 16

A patient suffers a fracture in the vertebral column at the lumbar region. Which vertebrae are most likely affected?

Accepted Answer

Lumbar vertebrae (L1-L5)

Question 17

Which of the following best describes the function of fibroblasts in connective tissue?

Accepted Answer

Synthesize fibers such as collagen and elastin

Question 18

Which of the following is a correct statement about ionic and covalent bonds?

Accepted Answer

Ionic bonds transfer electrons, while covalent bonds share electrons.

Question 19

A patient is unable to regulate body temperature after suffering a burn. Which skin structure is most likely damaged?

Accepted Answer

Sweat glands

Question 20

Which of the following best describes the function of the thoracic cage?

Accepted Answer

Protects the heart and lungs

Anatomy & Physiology: Foundational Study Notes (Chapters 1–7)

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