Q: Which of the following equations best represents the process of cellular respiration, a metabolic pathway used by living organisms to obtain energy?

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

Question 1

Which of the following is NOT one of the eight universally accepted characteristics of life?

Accepted Answer

Ability to photosynthesize

Question 2

A scientist discovers a new organism that is made of a single cell, can reproduce, and maintains homeostasis. However, it does not respond to environmental stimuli. According to the characteristics of life, is this organism considered alive?

Accepted Answer

No, because it must have all eight characteristics to be considered alive

Question 3

Which of the following best describes homeostasis in living organisms?

Accepted Answer

Maintaining a stable internal environment despite changes in the external environment

Question 4

Which domain includes organisms that lack a nucleus and can survive in extreme environments?

Accepted Answer

Archaea

Question 5

A multicellular organism is composed of specialized cells that form tissues, organs, and organ systems. This organization is an example of which characteristic of life?

Accepted Answer

Cellular organization

Question 6

Which of the following statements about viruses is TRUE?

Accepted Answer

Viruses are not considered living because they lack cellular organization

Question 7

Which kingdom contains organisms that are multicellular, have cell walls made of cellulose, and perform photosynthesis?

Accepted Answer

Plantae

Question 8

A patient is unable to regulate their blood glucose levels, resulting in frequent spikes and drops. Which characteristic of life is most directly affected?

Accepted Answer

Homeostasis

Question 9

Which of the following is an example of adaptation through evolution?

Accepted Answer

A population of insects developing resistance to a pesticide over several generations

Question 10

Which of the following equations best represents the process of cellular respiration, a metabolic pathway used by living organisms to obtain energy?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 ightarrow 6CO_2 + 6H_2O + 	ext{energy}$$

Question 11

Which of the following is a correct application of classification criteria for the three domains of life?

Accepted Answer

Mushrooms belong to the domain Eukarya

Question 12

A scientist is investigating how cells maintain homeostasis. Which of the following experimental designs is most ethical and scientifically valid?

Accepted Answer

Using animal models with proper ethical approval and controls

Question 13

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

Accepted Answer

Specialization enables cells to efficiently perform specific tasks necessary for the organism's survival

Question 14

Which of the following is NOT a function of metabolism in living organisms?

Accepted Answer

Maintaining genetic code

Question 15

Which of the following scenarios best demonstrates the concept of responsiveness in living organisms?

Accepted Answer

A plant bending toward a light source

Question 16

Which of the following is a correct statement about cell theory?

Accepted Answer

Cells are the basic unit of structure and function in living organisms

Question 17

Which of the following best describes the difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles, prokaryotic cells do not

Question 18

Which of the following is an example of growth and development in living organisms?

Accepted Answer

A caterpillar transforming into a butterfly

Question 19

Which of the following best illustrates the hierarchical organization of multicellular organisms?

Accepted Answer

Cell $$\rightarrow$$ tissue $$\rightarrow$$ organ $$\rightarrow$$ organ system

Question 20

Which of the following is a real-world example of how homeostasis is maintained in humans?

Accepted Answer

Sweating to cool the body when overheated

U1, L3

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