5 Written questions
5 Matching questions
- Cell Membrane Function: Apoptosis
- Differentiate between a Vacuole & Vesicle.
- Brownian Motion
- Three Types of Passive Transport 3.Facilitated Diffusion
- Protein position within a membrane:
- a diffusion of molecules across the cell membrane by way of transport proteins.
- b in a liquid or gas, particles are in constant, random motion
- c when the lysosome bursts and releases it's digestive enzymes into the cell resulting in cell destruction
- d Vesicle transports contents
Vacuole stores the ingested material
- e Peripheral proteins are partially embedded in the inside or outside surface of the membrane
5 Multiple choice questions
- have 3-D shapes that make them highly selective, recognizing atoms or molecules by shape, size or charge.
- a state at which molecules are evenly distributed (the concentration is equal throughout the medium)
- molecules continue moving but equilibrium is maintained
- a) phagocytosis - when cells "eat" by taking in large particles or other cells
b) pinocytosis - when cells "drink" by taking in droplets of fluid
- the use of vesicles to facilitate movement of substances that are too large to enter or exit the cell via transport proteins
- the movement of molecules and ions against the concentration gradient which requires ATP energy and carrier proteins to pump these molecules from an area of low solute concentration to an area of high solute concentration.
5 True/False questions
ENDOCYTOSIS → the cell membrane forms a pocket around the material to be transported, then either pinches off as a vesicle or a vacuole.
Three Types of Passive Transport → the diffusion of water molecules across a membrane (water molecules move from where they are more highly concentrated to where they are less concentrated)
Turgor pressure → The cell wall of a plant resists the pressure of a water-filled vacuole keeping the plant firm
Cell Membrane Structure → Know and be able to label a phospholipid bilayer diagram
Phospholipid bilayer → each phospholipid molecule has a head that is hydrophilic (water-loving) and two tails that are hydrophobic (water-fearing)