What is the name of the semi-permeable structure that creates tight compartments surrounding cellular protoplasm?

Which cell organelles function as the power house of a living cell?

1) Which type of animal junction is associated with linking the cytoplasm of cells and exchange of ions nutrients and other small molecules? A)gap junction B)anchoring junction C)tight junction D)plasmodesmata   2) Match the organelle to the function (smooth endoplasmic reticulum, lysosomes, vacuoles, chloroplasts) A) synthesizes lipids and detoxifies drugs and poisons. B)contains hydrolytic enzymes that are used for recycling.  C) This is the site of photosynthesis in eukaryotic cells. D) Plants use this organelle to degrade and recycle molecules.

What is the name of the semi-permeable structure that surrounds cellular protoplasm and creates close compartments?

What is the difference between parts B and C in malia's diagram? (a) Part B is responsible for giving the cell structure and support and part C allows nutrients and waste to enter and leave the cell (b)Part B is responsible for for letting nutrients and waste pass through the cell and part C holds all of the organelles in place (c) both parts B and C are responsible for producing food for the cell (d) there is no difference between B and C, their combined purposes to hold the cell together