energy is not required for movement across membrane to occcur. molecules move from an area of high concentration to area of low conccentration
Passive
yes
Active transportation and passive transportation (found in facilitated diffusion and osmosis)
Never. It`s a passive transportation.
Memory cells are not produced in passive immunity because passive immunity involves the transfer of pre-formed antibodies, either naturally (e.g., from mother to fetus) or artificially (e.g., through administration of antibodies). Since memory cells are generated through exposure to antigens, which triggers an immune response and the formation of memory cells, passive immunity does not involve this process.
Passive means that lymphocytes are not used means that plasma cells and memory cells or t cells both are not activated by antigen therefore no mitosis occurs!! ONE EXAMPLE: Injecting foreign antibodies into our body
Passive
Carrier proteins are sometimes used during passive transport.
Passive transport refers to the movement of biochemicals and other atomic or molecular substances across cell membranes. The function of the passive transport is that it is used in filtration and osmosis processes.
Energy, versus passive in which energy is not used.
No energy is needed. Transportation costs no ATP
Passive diffusion is a method by which glucose molecules enter cells. Glucose can diffuse through the cell membrane down its concentration gradient without the need for energy input from the cell.