Question 1

Which of the following best illustrates the concept of emergent properties in biological systems?

Accepted Answer

Photosynthesis occurring in a chloroplast, but not in a mixture of its isolated molecules.

Question 2

Which of the following statements about the flow of energy and cycling of matter in an ecosystem is correct?

Accepted Answer

Energy flows through an ecosystem in one direction, while matter is recycled.

Question 3

A hummingbird's ability to hover in place is primarily due to which unifying theme of biology?

Accepted Answer

Structure fits function

Question 4

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

Accepted Answer

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

Question 5

Which of the following is an example of reductionism in biological research?

Accepted Answer

Analyzing the molecular structure of DNA to understand inheritance.

Question 6

Which level of biological organization is defined as all the living organisms in a particular area, along with the non-living components with which they interact?

Accepted Answer

Ecosystem

Question 7

A scientist is studying how nitrogen-fixing bacteria convert atmospheric nitrogen into a form usable by plants. This research best exemplifies which theme of biology?

Accepted Answer

Transfer and transformation of energy and matter

Question 8

Which of the following statements about DNA is correct?

Accepted Answer

DNA contains the genetic instructions for building proteins.

Question 9

In the process of gene expression, what is the correct sequence of events?

Accepted Answer

Transcription of DNA to mRNA, then translation of mRNA to protein

Question 10

Which of the following best describes the systems biology approach?

Accepted Answer

Analyzing the dynamic interactions among components of a biological system.

Question 11

A researcher uses high-throughput technology to analyze the entire set of proteins expressed in a human liver cell. This field of study is known as:

Accepted Answer

Proteomics

Question 12

Which of the following is NOT a characteristic shared by all cells?

Accepted Answer

Have a membrane-enclosed nucleus

Question 13

Which of the following best explains how evolution accounts for both the unity and diversity of life?

Accepted Answer

Organisms share common features due to shared ancestry, but differences arise through adaptation to different environments.

Question 14

Which of the following is an example of a hypothesis that could be tested using the scientific method?

Accepted Answer

Plants grow faster in blue light than in red light.

Question 15

Which of the following best describes the relationship between genes and proteins?

Accepted Answer

Genes encode the information to build proteins.

Question 16

A biologist is interested in how global warming affects nutrient cycling in a rainforest. Which approach is most appropriate for this research?

Accepted Answer

Systems biology

Question 17

Which of the following equations best represents the flow of energy in an ecosystem?

Accepted Answer

$$	ext{Light energy} ightarrow 	ext{Chemical energy} ightarrow 	ext{Heat}$$

Question 18

Which of the following is the correct order of biological organization from smallest to largest?

Accepted Answer

Molecule \u003c Organelle \u003c Cell \u003c Tissue \u003c Organ \u003c Organism \u003c Population \u003c Community \u003c Ecosystem \u003c Biosphere

Question 19

Which of the following best describes the role of bioinformatics in modern biology?

Accepted Answer

It uses computational tools to analyze, store, and organize biological information.

Question 20

Which of the following is an example of an emergent property at the community level of biological organization?

Accepted Answer

Predator-prey interactions affecting population sizes.

Section 1: Evolution, the Themes of Biology, and Scientific Inquiry

Guida di studio - Domande di pratica

Study guide - Flashcard