3A+Biomolecules

=BIOMOLECULES = 1. Energy is stored in the organization of matter. - Fats are stored where it would be converted by cells to energy for the body to use e.g. arms, legs. 2. Living organisms use matter and energy to build and maintain body structures. - The protein that living organisms eat is used to help it grow/make muscles - Calcium that is ingested helps to maintain/improve bone strength 3. Living organisms obtain and process matter and energy. 4. The structure of a molecule always dictates its function. 5. The structure and function of biological living systems obeys the laws of thermodynamics. 6. Communities of organisms depend on the cycling of matter and the flow of energy. - Water cycle, which living organisms depend on to live (water molecules are being recycled by the energy used in the cycle is being converted and not created or destroyed) 7. The constant flow of energy and cycling of matter in the biosphere leads to a balanced or steady state.

Why is the carbon molecule suitable for life as we know it? Carbon has unique properties that make it suitable for life. Only carbon and silicon can create molecules big enough to carry biological information, but carbon has a unique capacity to form bonds with many other elements and itself, creating the chemical versatility needed to enable chemical reactions needed for biology such as metabolism. It is also able to create a chain of carbon atoms which can create bigger molecules and form stronger bonds between the atoms. Why is the chemistry of water suitable for life?