What 2 biomolecules make up the cell membrane? What is diffusion?
What is osmosis?
What is active transport?
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Cell membranes: Lipids, protein and carbydrates

Diffusion is the movement of materials across a membrane of greater concentration gradient to lower concentration gradient.

Osmosis is the movement of a solvent (usually water) across a selectively permeable membrane.

Active transport is the movement of materials against concentration gradient at the expense of energy.

currents is the correct answer.

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up