Q: Which of the following is the correct formula for calculating atomic mass?

$$\text{Atomic mass} = \text{Number of protons} + \text{Number of neutrons}$$

Question 1

Which of the following is NOT a metabolic function of the skin?

Accepted Answer

Production of red blood cells

Question 2

A patient presents with a deep laceration that penetrates through the epidermis and into the dermis. Which layer of the skin is most likely to be affected by this injury?

Accepted Answer

Dermis

Question 3

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

Accepted Answer

Engulfing and digesting pathogens

Question 4

Which type of epithelial tissue is specialized for absorption and is commonly found lining the small intestine?

Accepted Answer

Simple columnar epithelium

Question 5

Which equation correctly represents the conversion of potential energy to kinetic energy?

Accepted Answer

$$E_k = \frac{1}{2} m v^2$

Question 6

Which of the following statements about osmosis is correct?

Accepted Answer

Osmosis is the movement of water across a semipermeable membrane from low solute concentration to high solute concentration.

Question 7

Which organelle is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus

Question 8

A solution has a pH of 3. Which of the following best describes this solution?

Accepted Answer

It is acidic.

Question 9

Which of the following is the correct formula for calculating atomic mass?

Accepted Answer

$$	ext{Atomic mass} = 	ext{Number of protons} + 	ext{Number of neutrons}$$

Question 10

Which of the following best describes the role of exocrine glands?

Accepted Answer

They secrete substances onto epithelial surfaces through ducts.

Question 11

A patient is diagnosed with skin cancer originating from the basal cells of the epidermis. Which type of skin cancer is most likely?

Accepted Answer

Basal cell carcinoma

Question 12

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

Accepted Answer

It uses ATP to move sodium out of the cell and potassium into the cell against their concentration gradients.

Question 13

Which of the following is a characteristic of simple squamous epithelium?

Accepted Answer

Single layer of flat cells

Question 14

Which of the following equations represents Avogadro's number?

Accepted Answer

$$6.022 	imes 10$$^{23}$$

Question 15

Which of the following is true about covalent bonds?

Accepted Answer

They involve the sharing of electron pairs between atoms.

Question 16

Which of the following best describes the function of the smooth endoplasmic reticulum?

Accepted Answer

Lipid synthesis and detoxification

Question 17

Which of the following is a function of the plasma membrane?

Accepted Answer

Regulation of substance entry and exit

Question 18

Which of the following best describes the role of buffers in the body?

Accepted Answer

Buffers maintain pH stability by neutralizing acids and bases.

Question 19

Which of the following is a property of water that makes it essential for life?

Accepted Answer

It has a high heat capacity.

Question 20

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

Accepted Answer

They prevent leakage of extracellular fluid between cells.

Key Concepts in Anatomy & Physiology: Skin, Tissues, and Cellular Functions

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