3A_Biomolecules

=Homeostasis: = The tendency of particles/molecules to move from a region of higher concentration to a region of lower concentration to reach equilibrium. Maintain balance equilibrium between the internal and external environment

Diffusion Osmosis Active and Passive Transport -> Cell membrane

Themes can link to different topics

**Matter,energy and organism :** **ENERGY, MATTER & ORGANISATION -** BIOMOLECULES //** Living systems are complex and highly organized, and they require matter and energy to maintain this organization. **//
 * **Energy** is stored in the organization of matter
 * Living organisms use matter and energy to build and maintain body structures
 * Living organisms obtain and process matter and energy
 * The structure of a molecule always dictates its function.
 * The structure and function of biological living systems obeys the laws of thermodynamics.
 * ==== __Communities of organisms depend on the cycling of matter and the flow of energy__ ====
 * The constant flow of energy and cycling of matter in the biosphere leads to a balanced or steady state.

This balance is achieved through various biogeochemical cycles and the processes of photosynthesis and cellular respiration - //focus is on ENERGY//

Plants take in light energy from the sun to photosynthesise. Herbivores then absorb energy from their food. Then, carnivores eat them and recieve the energy they need from consumption. When organisms die, they decompose and plants take in the nutrients for growth.

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