Produces hydrochloric acid

Secretes digestive enzymes (lipase, amylase, protease) into the duodenum

Absorbs nutrients

Stores glycogen

Study of DNA structure

Analysis of light emitted or absorbed by a substance

Measurement of sound wave speed

Study of gravitational tides

Photosynthesis

Water electrolysis

Combustion

Dissolution of NaCl in water

Orbital

Bohr shell

Nucleus

Energy level

Cerebral cortex

Hypothalamus

Cerebellum

Medulla oblongata

Equal volumes of gas at the same T and P contain the same number of molecules

Pressure is inversely proportional to volume

Specific heat is constant for all gases

Ideal gases have no intermolecular interactions

Industrial chemical synthesis of drugs

Production of organic matter using chemical energy by light-independent organisms

Conversion of light into heat

Breakdown of proteins into amino acids

6.022 × 10²³

3.14 × 10⁸

9.81 × 10²

1.38 × 10⁻²³

Diffraction

Refraction

Polarisation

Dispersion

A static electrical potential

A brief electrical impulse that travels along the neuron

A change in membrane potential only during sleep

The potential difference between two neurons

CO₂

SO₂

Water vapour (H₂O)

H₂

A water-soluble vitamin

A steroid lipid essential for cell membranes and hormone synthesis

A transport protein

A complex carbohydrate

Volume of a gas

Heat exchanged in a chemical reaction or physical process

Density of a liquid

Electrical conductivity of a solution

Introns and exons both

Introns only

Exons (after splicing)

Mitochondrial DNA

Electric field

Gravitational field

Magnetic field

Radiation field

An atom with equal protons and neutrons

An atom or molecule with electric charge due to loss or gain of electrons

A neutral subatomic particle

A radioactive isotope

Parasitism

Mutualism

Commensalism

Predation