Question 1

Which of the following is NOT a property common to all living things?

Accepted Answer

Presence of a nucleus

Question 2

Which subatomic particle determines the chemical behavior of an atom?

Accepted Answer

Electron

Question 3

What type of bond is formed when two atoms share electrons equally?

Accepted Answer

Nonpolar covalent bond

Question 4

Which equation correctly represents the dissociation of water into ions?

Accepted Answer

$$H_2O \rightarrow H^+ + OH^-$$

Question 5

Which property of water allows insects to walk on its surface?

Accepted Answer

Cohesion

Question 6

A solution has a pH of 4. What is its $$[H^+]$$ concentration?

Accepted Answer

$$1 	imes 10$$^{-4}$$ M

Question 7

Which of the following best describes the difference between acids and bases?

Accepted Answer

Acids donate $$H^+$$ ions, bases accept $$H^+$$ ions

Question 8

Which feature of carbon allows it to form diverse structures?

Accepted Answer

Ability to form up to four covalent bonds

Question 9

Which process describes the breakdown of polymers into monomers?

Accepted Answer

Hydrolysis

Question 10

Which of the following is a function of carbohydrates in living organisms?

Accepted Answer

Providing energy

Question 11

Amino acids differ from each other based on their:

Accepted Answer

R group (side chain)

Question 12

Which level of protein structure is directly responsible for its function?

Accepted Answer

Tertiary structure

Question 13

Which statement best explains the relationship between protein folding and function?

Accepted Answer

Protein folding determines the active sites and function

Question 14

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

Accepted Answer

Energy storage

Question 15

Which type of lipid is a major component of cell membranes?

Accepted Answer

Phospholipids

Question 16

Which equation best represents the movement of water across a membrane by osmosis?

Accepted Answer

$$\Delta \Psi = \Psi_{inside} - \Psi_{outside}$$

Question 17

Which process requires energy input to move substances against their concentration gradient?

Accepted Answer

Active transport

Question 18

Which organelle is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus

Question 19

Which of the following structures is found in prokaryotic cells but NOT in eukaryotic cells?

Accepted Answer

Nucleoid region

Question 20

Which statement best describes the integration of eukaryotic organelles for cellular activities?

Accepted Answer

Organelles coordinate to carry out complex cellular processes

General Biology: Core Concepts and Molecular Foundations

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