Biology Test 2


Active Transport, Passive Transport, Diffusion, Osmosis, Hypotonic, Hypertonic and Isotonic Solutions, Independent, Controlled and Dependent Variables
Justina Rocca
Flashcards by Justina Rocca, updated more than 1 year ago
Justina Rocca
Created by Justina Rocca about 8 years ago

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Question Answer
Active Transport - Energy is needed ( O2 +Glucose - CO2 + H20)
Process from Active Transport * Endocytosis ( particles enter): - Pinocytosis - Exocytosis * Exocytosis (particles exit) - The movement of particles through a cell membrane from a region of lower concentration to a region of higher concentration using the energy from the cell respiration
Process from Active Transport * WHERE: Cell Mambrane
Independent, Controlled and Dependent Variables
Passive Transport - No energy needed * Diffusion: Movement of molecules from a region of higher concentration to lower concentration. * Simple: Through phospholipids * Facilitated: Through proteins
Simple Diffusion
Facilitated Diffusion
Rate of Diffusion - Distance ( larger the slower the diffusion) - Charge - Steepness of concentration gradient - Diameter of molecules - Temperature
Osmosis - The net movement of water molecules through a partially permeable membrane from a hypotonic solution. * PARTIALLY: Permable for water ONLY * PERMABLE: Can get in * Membrane
Hypotonic, Hypertonic and Isotonic Solution Hypotonic: More water than molecules- Increases Hypertonic: Less water than molecules- Shrinks Isotonic: Concentrations of both solutions are equal- Stays the same
Image of Hypotonic, Hypertonic and Isotonic Solutions
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