Q: Which of the following equations correctly represents the hydrolysis of ATP to release energy?

$$\mathrm{ATP} + \mathrm{H}_2\mathrm{O} \rightarrow \mathrm{ADP} + \mathrm{P_i} + \text{energy}$$

Question 1

Which of the following is NOT a property that all living cells must possess according to the course definition of life?

Accepted Answer

Ability to photosynthesize

Question 2

A mature red blood cell in humans lacks a nucleus and DNA. Which property of life does it NOT fulfill?

Accepted Answer

Information storage and transmission

Question 3

Which biomolecule is primarily responsible for forming the selectively permeable barrier of cells?

Accepted Answer

Lipids

Question 4

Which of the following best explains why lipids are well-suited to form biological membranes?

Accepted Answer

They have both hydrophilic and hydrophobic regions, allowing them to form bilayers.

Question 5

Which of the following is a correct match between a biomolecule and its primary function in cells?

Accepted Answer

Nucleic acids – store and transmit genetic information

Question 6

A scientist discovers a new organism that is membrane delimited, stores and uses energy, and responds to its environment, but cannot replicate on its own. According to the course definition, is this organism alive?

Accepted Answer

No, because it cannot self-replicate.

Question 7

Which of the following statements about prokaryotic and eukaryotic cells is TRUE?

Accepted Answer

Prokaryotic cells have circular DNA, while eukaryotic cells have linear DNA.

Question 8

Which of the following best describes the role of ATP in the cell?

Accepted Answer

ATP stores and provides energy for cellular work.

Question 9

Which of the following equations correctly represents the hydrolysis of ATP to release energy?

Accepted Answer

$$\mathrm{ATP} + \mathrm{H}_2\mathrm{O} ightarrow \mathrm{ADP} + \mathrm{P_i} + 	ext{energy}$$

Question 10

Which of the following is a real-world example of evolution in action?

Accepted Answer

The increase in antibiotic-resistant bacteria in hospitals over time.

Question 11

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

Accepted Answer

Storing genetic information

Question 12

Which of the following best explains why viruses are not considered fully alive by the course definition?

Accepted Answer

They cannot self-replicate without entering a host cell.

Question 13

Which of the following is the smallest unit that meets all the properties of life as defined in this course?

Accepted Answer

A cell

Question 14

Which of the following is a correct pairing of a biomolecule and its monomer?

Accepted Answer

Protein – amino acid

Question 15

A cell is exposed to a toxin that disrupts the function of ribosomes. Which process will be most directly affected?

Accepted Answer

Protein synthesis

Question 16

Which of the following statements about carbohydrates is TRUE?

Accepted Answer

They can serve as both energy sources and structural components in cells.

Question 17

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

Accepted Answer

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

Question 18

Which of the following scenarios best illustrates the property of life known as 'response to the environment'?

Accepted Answer

A plant bending toward a light source

Question 19

Which of the following is a function of nucleic acids in living organisms?

Accepted Answer

Storing and transmitting genetic information

Question 20

Which of the following best describes the process of evolution as defined in this course?

Accepted Answer

Change in heritable characteristics of biological populations over successive generations

Fundamental Properties of Life and Biomolecules: Introduction to General Biology

Guida di studio - Domande di pratica

Study guide - Flashcard