CIE A Level Biology復(fù)習(xí)筆記1.2.3 The Vital Role of ATP

Category: A-level課程, 教材筆記, 福利干貨 Date: 2022年8月10日上午10:16

All organisms require a?constant supply of energy?to maintain their cells and stay alive
This energy is required:
- In?anabolic?reactions – building larger molecules from smaller molecules
- To?move substances?across the cell membrane (active transport) or to move substances within the cell
- In animals, energy is required:
  - For?muscle contraction?– to coordinate movement at the whole-organism level
  - In the?conduction of nerve impulses, as well as many other cellular processes
In all known forms of life, ATP from respiration is used to transfer energy in?all energy-requiring processes?in cells
This is why ATP is known as the?universal energy currency
Adenosine Triphosphate (ATP)?is a?nucleotide
- The monomers of DNA and RNA are also nucleotides