DNA in the cell nucleus

A small circular genome in mitochondria, inherited maternally

Viral DNA integrated into the genome

Mitochondrial messenger RNA

Refraction of sunlight in clouds

Interaction between solar wind and Earth's magnetic field

Reflection of moonlight on the atmosphere

Chemical reaction between O₃ and N₂

Emission of electrons

Emission of gamma rays

Emission of a helium nucleus (2 protons + 2 neutrons)

Emission of neutrons

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