The answer to an <span>action potential an all-or-none response to stimuli </span>voltage-gated ion channels open when membrane potential passes a particular level
They say how an enzyme perfectly fits into its substrate is alike a "lock and key".
Only one specific enzyme can fit a specific substrate.
One's material and one's apparatus?
Answer:
The right answer is D
Explanation:
They use carbon dioxide, water and sunlight to make carbohydrates. And the oxygen is just a byproduct. No real organic molecules are needed before.
Phagocytosis is when a cell encloses a particle completely to form a phagosome. The process was originally evolved for the acquisition of nutrients by certain specialised cells. In multicellular animals, the process has been adapted to form a part of the immune system. Here, debris and pathogens are ingested by a macrophage, which then fuses with a lysosome to form a phagolysosome. Here, enzymes and toxic peroxides digest the pathogen.
