Answer:
Depending on the size, some substances are able to pass through cell membranes
Explanation:
Some molecules, such as hydrocarbons and oxygen can cross the membrane. Many large molecules (such as glucose and other sugars) cannot. Water can pass through between the lipids.
Hope that answers your question.
Answer:
Magnetic fields can be used to make electricity
Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current. Electricity generators essentially convert kinetic energy (the energy of motion) into electrical energy.
Explanation:
Hope this helps.
What's being asked here? I'm personally not sure
Where are the choices? Can you give the choices so we can answer the question?
