Carbon dioxide and oxygen enter via the stomata which are tiny pores in the leaves and other organs of plants. Please see the link.
Analogy for Nuclear MembraneIt's like a traffic stop.It's like a toll road. Proteins have to be approved by the nucleus to go through the nuclear membrane.
CO2 enters through stomata. They are tiny pores on leaves.
It is a double-layered membrane enclosing the nucleus of a cell that controls what enters and leaves the nucleus. It is also called the nuclear envelope.
the air that enters the respiratory tract remaining in the conducting zone pasageways and never reaches the alveoli.
door knob/handle
A school
It's like security guards for the White House because the membrane controls what enters and leaves the cell just like the security guards controls who enters and leaves the White House
Bob Cratchit enters the office after Scrooge leaves for the day. He is Scrooge's clerk and works in the office.
food enters, waste leaves
It enters the oviduct
Customs is the name of the department that determines what enters and leaves the country
it is the cellmembrain
The Street Enters the House was created in 1911.
NUTRIENTS AND OXYGEN also water, minerals, and vitamins
STOMATA
cell membrane