ANALOGY

Mitochondrion : Respiration :: Chloroplast : ?

• Replication

• Photosynthesis

• Excretion

• Digestion

Answer explanation

Mitochondria are responsible for respiration, while chloroplasts are the organelles that carry out photosynthesis, converting light energy into chemical energy. Thus, the correct analogy is Chloroplast : Photosynthesis.

Force : Acceleration :: Mass : ?

• Inertia

• Weight

• Momentum

• Velocity

Answer explanation

Force is related to acceleration through Newton's second law (F=ma). Similarly, mass is related to inertia, which is the property of an object to resist changes in its state of motion. Thus, the answer is Inertia.

Atom : Molecule :: Cell : ?

• Tissue

• System

• Organ

• Organelle

Answer explanation

An atom combines to form a molecule, just as a cell combines to form a tissue. Therefore, the correct analogy is Cell : Tissue.

Light is to Photon as Electricity is to ?

• Neutron

• Electron

• Proton

• Neutrino

Answer explanation

Light is made up of photons, which are the fundamental particles of light. Similarly, electricity is primarily carried by electrons, which are the fundamental particles of electric charge. Thus, the correct answer is Electron.

Acid : Proton Donor :: Base : ?

• Proton Donor

• Proton Acceptor

• Electron Donor

• Electron Acceptor

Answer explanation

An acid is defined as a proton donor, meaning it donates protons (H+ ions). Conversely, a base is defined as a proton acceptor, as it accepts protons. Therefore, the correct analogy is Acid : Proton Donor :: Base : Proton Acceptor.

Boiling : Liquid to Gas :: Sublimation : ?

• Solid to Gas

• Gas to Liquid

• Liquid to Solid

• Solid to Liquid

Answer explanation

Boiling is the process of changing a liquid into a gas. Similarly, sublimation is the transition of a solid directly into a gas without passing through the liquid phase. Therefore, the correct answer is Solid to Gas.

Heart : Pump :: Kidney : ?

• Filter

• Transport

• Absorb

• Synthesize

Answer explanation

The heart functions as a pump to circulate blood, while the kidney's primary function is to filter waste from the blood. Therefore, the correct analogy is Heart : Pump :: Kidney : Filter.

Frequency : Pitch :: Amplitude : ?

• Speed

• Wavelength

• Loudness

• Timbre

Answer explanation

Frequency relates to pitch, while amplitude relates to loudness. Higher amplitude results in louder sounds, just as higher frequency results in higher pitch. Thus, the correct answer is loudness.

DNA : Instruction Manual :: Enzyme : ?

• Reactant

• Inhibitor

• Product

• Catalyst

Answer explanation

DNA serves as an instruction manual for building proteins, while enzymes act as catalysts that speed up chemical reactions. Thus, the relationship is DNA : Instruction Manual :: Enzyme : Catalyst.

North Pole : Magnet :: Positive Charge : ?

• Nucleus

• Electron

• Neutron

• Proton

Answer explanation

The North Pole is a magnetic pole, while a positive charge is associated with a proton. Just as the North Pole represents a magnetic property, a proton represents a positive charge in an atom.