Respond
Silver reacts with sulfuric and nitric acid.
When a dogs head is hot to the touch, it does not mean that a dog is ill. Like humans, a dog reacts to the temperature changes in the environment.
it changes to green
The cell membrane helps maintain equilibrium by regulating the passage of substances in and out of the cell through selective permeability. It allows essential nutrients to enter the cell while preventing harmful substances from entering. This helps the cell maintain its internal environment despite changes in the external environment.
STIMULUS (:
An extracellular enzyme is one which reacts outside of the cell. An intracellular enzyme is one which reacts inside of the cell.
It changes chemically.
The cell membrane is the structure that allows communication between the internal and external cell environment. It controls the movement of molecules in and out of the cell, helping to maintain homeostasis and respond to changes in the cell's surroundings.
An organism reacts to a stimulus with a response.
Rocks & stones react by getting warmer or colder with the environmental changes.
The cell wall provides structural support and protection to the cell. It helps maintain the cell's shape and prevents it from bursting due to changes in osmotic pressure. Additionally, it allows for the exchange of materials with the external environment.
Cells respond to their external environment through a process called cell signaling. This involves the cell receiving signals from the environment, such as hormones or neurotransmitters, and then transmitting these signals through various signaling pathways within the cell. These pathways can involve molecules like receptors, enzymes, and second messengers, which ultimately lead to changes in the cell's behavior or function. This response allows the cell to adapt and survive in its surroundings.