Question 1

Which of the following best describes the concept of homeostasis in living organisms?

Accepted Answer

Keeping an organism's internal environment stable despite changes in the external environment.

Question 2

Which of the following is the correct sequence for the levels of biological organization from smallest to largest?

Accepted Answer

Cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere

Question 3

A patient is experiencing hypothermia. Which of the following physiological responses is most likely to occur first as the body attempts to maintain homeostasis?

Accepted Answer

Strong shivering to generate heat

Question 4

Which organ system is primarily responsible for producing hormones that regulate body activities?

Accepted Answer

Endocrine system

Question 5

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

Accepted Answer

Protects from injury and pathogens

Question 6

Which of the following statements about prokaryotic cells is correct?

Accepted Answer

They are structurally simpler than eukaryotic cells.

Question 7

A negative feedback mechanism in homeostasis is best illustrated by which of the following scenarios?

Accepted Answer

Blood sugar rises, triggering insulin release to lower it back to normal.

Question 8

Which of the following molecules is primarily responsible for storing genetic information in cells?

Accepted Answer

DNA

Question 9

Why are cells generally small in size?

Accepted Answer

To maximize the surface-to-volume ratio for efficient exchange of materials.

Question 10

Which tissue type is responsible for coordinating body activities and consists of neurons and neuroglia?

Accepted Answer

Nervous tissue

Question 11

A person is exposed to extreme heat and their body temperature rises above 40°C. What is the most immediate risk to their health?

Accepted Answer

Life-threatening hyperthermia leading to possible brain death

Question 12

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

Accepted Answer

Regulating body temperature

Question 13

Which organ system is responsible for eliminating nitrogenous wastes and regulating blood volume and chemical composition?

Accepted Answer

Urinary system

Question 14

Which of the following is a correct description of positive feedback?

Accepted Answer

It amplifies a change, moving the system further away from the set point.

Question 15

Which of the following is a real-world example of negative feedback in human physiology?

Accepted Answer

Sweating to cool the body when overheated

Question 16

Which of the following best explains why multicellular organisms have specialized tissues?

Accepted Answer

Specialized tissues allow for division of labor and more efficient functioning.

Question 17

Which organ system is responsible for transferring oxygen from inhaled air to the blood and removing carbon dioxide from the blood to exhaled air?

Accepted Answer

Respiratory system

Question 18

Which of the following molecules is NOT a major molecule of life?

Accepted Answer

Chlorophyll

Question 19

A scientist is studying a group of individuals of the same species living together in a common geographical area. What level of biological organization is this?

Accepted Answer

Population

Question 20

Which of the following equations correctly represents the relationship between surface area and volume for a cube-shaped cell with side length $$l$$?

Accepted Answer

$$	ext{Surface Area} = 6l^2$, $$	ext{Volume} = $$l^3$$

Introduction to Biology: Life and Homeostasis (Behavioural Biology B11)

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드