Question

How are sugar molecules used inside cells?

Answer 1

Answer:

Built into the membrane are carrier proteins that attach to the sugar molecules outside the cell and then use energy to "pump" these molecules against the normal direction of diffusion and into the cell. This system is known as active transport.

Answer 2

Sugar molecules are used inside the cells to 'communicate' at the molecular level.

Explanation:

• Sugar and fat are the cellular nutrients that provide energy to the cells.

• Sugar molecules are present in the form of glucose when it is outside the cells.

• To provide the cells with energy, these sugar and fat molecules have to cross the cell membrane.

• Sugar molecules plays a major role in cellular communication.

• These sugar molecules act as a 'channel' between the cell and protein to talk to each other.

• Sugar molecules are used by the cells to produce energy.