Question 1

Which of the following best describes the main function of epithelial tissue in the lungs and gills?

Accepted Answer

To facilitate efficient gas exchange through thin layers

Question 2

Which of the following is a key structural feature of skeletal muscle tissue that distinguishes it from smooth muscle tissue?

Accepted Answer

Striations due to organized sarcomeres

Question 3

A patient is found to have a mutation that disrupts the formation of tight junctions in their intestinal epithelium. Which of the following is the most likely consequence?

Accepted Answer

Uncontrolled movement of substances between cells

Question 4

Which tissue type is primarily responsible for transmitting electrical impulses in the body?

Accepted Answer

Nervous tissue

Question 5

Bone is classified as which type of tissue, and what is its primary function?

Accepted Answer

Connective tissue; support

Question 6

Which of the following best explains why stratified squamous epithelium is found in the epidermis?

Accepted Answer

It provides protection against abrasion and pathogens

Question 7

In the context of homeostasis, what is the role of the hypothalamus in regulating body temperature?

Accepted Answer

It acts as a thermostat, comparing body temperature to a setpoint and initiating corrective actions

Question 8

Which of the following equations correctly represents the relationship for osmotic pressure ($\Pi$) across a membrane, where $C$ is the concentration difference, $R$ is the gas constant, and $T$ is temperature?

Accepted Answer

$\Pi = CRT$

Question 9

Which of the following adaptations is most likely to be found in an endothermic animal living in a cold environment?

Accepted Answer

Thick fur or adipose tissue to reduce heat loss

Question 10

A marine fish is placed in freshwater. Predict what will happen to its cells and explain why, using the concept of osmoregulation.

Accepted Answer

Cells will swell as water enters by osmosis

Question 11

Which of the following best describes the difference between homeothermy and poikilothermy?

Accepted Answer

Homeotherms maintain a constant body temperature; poikilotherms have variable body temperature

Question 12

Which of the following is a function of gap junctions in epithelial tissue?

Accepted Answer

Allowing direct communication between adjacent cells

Question 13

Which of the following best explains why simple squamous epithelium is found lining blood vessels?

Accepted Answer

It allows for efficient diffusion of gases and nutrients

Question 14

Which of the following is NOT a characteristic of connective tissue?

Accepted Answer

Forms the lining of internal organs

Question 15

Which of the following best describes the function of the apical surface of an epithelial cell?

Accepted Answer

It faces the lumen or external environment

Question 16

Which of the following best explains why cardiac muscle cells are striated?

Accepted Answer

They have organized sarcomeres with repeating bands

Question 17

Which of the following is a correct statement about the organization of animal tissues?

Accepted Answer

Organs are composed of multiple tissue types working together

Question 18

Which of the following best describes the movement of water and salts in a freshwater fish?

Accepted Answer

Water enters the body by osmosis; salts are lost to the environment

Question 19

Which of the following is a real-world example of how structure relates to function in animal tissues?

Accepted Answer

The multiple layers of the epidermis provide a barrier to pathogens and physical damage

Question 20

Which of the following best describes the difference between endothermy and ectothermy?

Accepted Answer

Endotherms generate most of their body heat internally; ectotherms rely on external sources

Topic 3 - Animal Form & Function

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