Question 1

Which of the following statements best describes the cell theory as established by Schleiden, Schwann, and Virchow?

Accepted Answer

All living organisms are composed of one or more cells, the cell is the basic unit of structure and organization in organisms, and all cells arise from pre-existing cells.

Question 2

Which of the following is a unifying principle of life that distinguishes living organisms from non-living matter?

Accepted Answer

Living organisms maintain homeostasis.

Question 3

Which process is responsible for the transfer of antibiotic resistance genes between different bacterial species, as shown in hospitals?

Accepted Answer

Horizontal gene transfer

Question 4

A scientist observes a new microorganism that lacks a nucleus and membrane-bound organelles. To which domain does this organism most likely belong?

Accepted Answer

Bacteria or Archaea

Question 5

Which of the following best describes the difference between discovery-based science and hypothesis-driven science?

Accepted Answer

Discovery-based science collects data without a preconceived hypothesis, while hypothesis-driven science tests specific predictions.

Question 6

Which of the following is an example of homeostasis in humans?

Accepted Answer

Regulation of blood glucose levels by insulin and glucagon

Question 7

Which level of biological organization is immediately above the cellular level?

Accepted Answer

Tissue

Question 8

Which of the following equations correctly represents the process of cellular respiration?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O + ATP}$$

Question 9

A researcher is studying the effect of a new drug on cell division. Which level of biological organization is most relevant to her study?

Accepted Answer

Cellular

Question 10

Which of the following best explains why mitochondria and chloroplasts are thought to have originated from prokaryotic cells?

Accepted Answer

They contain their own DNA and reproduce independently within eukaryotic cells.

Question 11

Which of the following is NOT a principle that defines life?

Accepted Answer

Living organisms do not require energy.

Question 12

Which scientist is credited with first using the term 'cell' to describe the basic unit of life?

Accepted Answer

Robert Hooke

Question 13

Which of the following best describes vertical descent with mutation?

Accepted Answer

Genetic changes are passed from parent to offspring, leading to evolution over generations.

Question 14

Which of the following is a correct statement about scientific theories?

Accepted Answer

They are broad explanations supported by a large body of evidence.

Question 15

Which of the following best illustrates the unity of life?

Accepted Answer

All living organisms use DNA as their genetic material.

Question 16

A scientist is studying the effect of environmental temperature on the metabolic rate of a lizard. Which principle of life is most directly being investigated?

Accepted Answer

Living organisms interact with the environment.

Question 17

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

Accepted Answer

Eukaryotic cells have a membrane-bound nucleus, while prokaryotic cells do not.

Question 18

Which of the following is an example of hypothesis testing in biology?

Accepted Answer

A researcher predicts that increasing light intensity will increase the rate of photosynthesis, then tests this by measuring oxygen production in plants under different light conditions.

Question 19

Which of the following best describes the relationship between biology, chemistry, and physics?

Accepted Answer

Biology is governed by chemistry, which is governed by physics.

Themes in the Study of Life: Introduction to Biology and Cell Theory

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