Cell Structure And Transportation Flashcards
(12 cards)
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What is a eukaryotic cell?
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes.
What is a prokaryotic cell?
A prokaryote is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
What is a membrane
a microscopic double layer of lipids and proteins forming the boundary of cells or organelles.
What is Osmosis?
Osmosis is the diffusion of water from a more dilute solution to a more concentrated solution, across a partially permeable membrane
What is water potential?
Water potential is the ability for water to move freely
Isotopic
Concentration of solutes is the same outside of the cell
Hypertonic
Concentration of solutes is higher outside of the cell
Hypotonic
Concentration if solutes is lower outside of the cell
What does it need?
Energy
Active transport
Particles going against the gradient
Why is active transport so important?
Active transport allow minerals and ions in the soil that are usually in very dilute solutions.