
Cell Transport in Everyday Life
Quiz by Zhao
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35 questions
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- Q1What is the fundamental principle of diffusion?Movement of particles against a concentration gradientMovement of particles from a high concentration area to a low concentration areaMovement of water across a membraneMovement of particles using energy (ATP)30s
- Q2Which of these is an everyday life example of diffusion given in the text?The smell of perfume spreading through a roomA cucumber shriveling in salt waterA white blood cell engulfing bacteriaGlucose entering a cell after a meal30s
- Q3What is the biological example of diffusion mentioned in the class?White blood cells engulfing bacteriaOxygen moving from the lungs into the bloodPancreatic cells releasing insulinThe sodium-potassium pump30s
- Q4why does exercise improve gas exchange?It provides more ATP for diffusionIt maintains a steep diffusion gradient for O2 and CO2It forces cells to use active transportIt increases the speed of osmosis30s
- Q5Does the process of diffusion require the cell to expend energy (ATP)?No, it is a passive processOnly when moving large moleculesYes, it always requires ATPOnly when moving against the gradient30s
- Q6What is the result of diffusion?Balance is reached (equilibrium)Particles are concentrated in one areaEnergy (ATP) is createdThe cell membrane bursts30s
- Q7What is osmosis specifically defined as?The movement of solutes using energyThe engulfing of liquids by a cellThe movement of water through a semipermeable membraneThe movement of any particle from high to low concentration30s
- Q8In osmosis, water moves from a region of _____ solute concentration to a region of _____ solute concentration.low, highlow, lowhigh, lowhigh, high30s
- Q9What happens to cucumber slices placed in salt water?They remain unchanged due to isotonic balanceThey are preserved because bacteria grow on themThey shrivel because water moves out of their cellsThey swell up because water enters their cells30s
- Q10Why does salting meat or fish act as a preservative?It provides energy to the cellsIt causes the meat cells to swell and burstBacteria on the meat lose water by osmosis and dieIt makes the meat taste better30s
- Q11Why is it dangerous to drink seawater?It is hypertonic and will cause cells to lose water (dehydration)It is hypotonic and will cause cells to burstIt contains bacteria that use endocytosisIt is isotonic and will have no effect30s
- Q12Why is pure water NOT injected into the bloodstream?It is hypertonic, causing cells to shrivelIt is isotonic, having no effect on cellsIt is hypotonic, causing blood cells to swell and burstIt cannot pass the cell membrane by diffusion30s
- Q13Medical solutions like saline are described as _____ to prevent damage to blood cells.hypertonichypotonicisotonicenergetic30s
- Q14What is the purpose of oral rehydration fluids (salts)?To restore osmotic equilibrium after dehydrationTo stop the process of diffusionTo provide energy for active transportTo cause dehydration30s
- Q15Does the process of osmosis require the cell to expend energy (ATP)?No, it is a passive processOnly when moving water into the cellYes, it is a form of active transportOnly when moving water out of the cell30s