biology study guide mid term 2.docx - Biology midterm 2 study guide Diffusion Movement of solutes across a semipermeable membrane The diffusion will

biology study guide mid term 2.docx - Biology midterm 2...

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Biology midterm 2 study guide Diffusion: Movement of solutes across a semipermeable membrane. The diffusion will stop when the concentration is equal. it will move from the high to the low. Diffusion Of solutes: Small, uncharged or polar molecules. Of water: Osmosis. Facilitated Diffusion Integral Proteins. Active Transport Pumps: is the connection that allow protein to go from are of low to area of high using ATP. Equilibrium: An equal concentration of molecules on either side of the membrane. When the dye molecules reach equilibrium, the movement of all molecules across the membrane will not stop. Net Movement: Initially, in which direction did the majority of dye molecules move Movement: these dye molecules will continue to pass through the membrane in a random fashion (Brownian Motion). Semi permeability can occur in either direction across the membrane Osmosis: Specialized diffusion of water. Water will move along its concentration gradient from high concentration to low concentration. The volume Is going to increase. Active transport: ATP will donate a phosphate. This phosphate will make it open to the outside. Then the potassium can fit from the outside and then the phosphate will be removed and change the ATP allow the shape to change. in the Co transport is when we need molecules to move into and out if the cell. Symport: both are moving the same way Antiport: on is going out and the second Is going in When we don’t see ATP we call it passive transport, in the other hand when we see an ATP its called active transport What are some differences between prokaryotic and eukaryotic cells? prokaryotic: They don’t have nucleus, cell walls with peptidoglycan , and unicellular Eukaryotic: more organelles, more comportment, unicellular or multicellular Eukaryotic:
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Biology midterm 2 study guide Until recently, prokaryotes were thought to have no membrane-bound structures or organelles. Ribosomes Simple cytoskeleton Other membranes: Photosynthetic membranes Storage of ions and enzymes What are some differences between animal and plant cells? Cell wall in planet cells not in animals Plant cells have chloroplast Planet cells have a central vacuole= lysosome (animal) Plasmodesmata there is a holes in the planet cells on the top. Cells are small because They should be small so They can have aquatic surface area to support their volume. vesicles move around the endomembrane system using Motor protein such as a kinesin . Mitochondria & Chloroplasts: 2 membranes Possess their own DNA Respiration and photosynthesis Undergo binary fission to(they can dived in half to make another “reproduce” Mitochondria was a bacterial cell then after a while they became one of the cell organelle Is the Plasma Membrane the End of a Cell?
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