Physiological Processes Quiz

What is osmosis?

• Movement of solute molecules from an area of lower solute concentration to an area of higher solute concentration without a semipermeable membrane.

• Movement of solute molecules from an area of higher solute concentration to an area of lower solute concentration through a semipermeable membrane.

• Movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semipermeable membrane.

• Movement of solvent molecules from an area of higher solute concentration to an area of lower solute concentration through a semipermeable membrane.

Define diffusion.

• The process by which molecules or particles spread out from an area of high concentration to an area of low concentration.

• The process by which molecules or particles spread out from an area of low concentration to an area of high concentration.

• The process by which molecules or particles move in a random pattern without any specific direction.

• The process by which molecules or particles are absorbed by a solid or liquid substance.

What is active transport?

• Movement of molecules across a cell membrane from higher to lower concentration using energy.

• Movement of molecules across a cell membrane from lower to higher concentration using energy.

• Movement of molecules across a cell membrane without using energy.

• Movement of molecules within a cell without crossing the cell membrane.

List three terms related to osmosis.

• active transport, facilitated diffusion, passive transport

• diffusion, concentration gradient, equilibrium

• solute, solvent, semipermeable membrane

• filtration, absorption, excretion

List three terms related to diffusion.

• active transport, size of molecule, temperature

• concentration gradient, surface area, type of medium,

• exocytosis, PH

• endocytosis, glucose concentration

List three terms related to active transport.

• Passive transport

• O2, pH,glucose conc,oxygen conc,enzyme inhibitors, temp.

• Facilitated diffusion, size of molecule, glucose, enzyme conc,

• Osmosis

What are the factors that affect osmosis?

• surface area, color, taste

• molecular weight, pH, viscosity

• concentration gradient, temperature, pressure, permeability of the membrane

• volume, density, shape

What are the factors that affect diffusion?

• pressure, viscosity, density, distance

• temperature, concentration gradient, surface area, size of particles or molecules

• pH, polarity, solubility, volume

• time, velocity, mass, shape

What are the factors that affect active transport?

• Enzyme concentration, substrate availability, and reaction rate.

• Cell size, membrane permeability, and ATP production.

• Temperature, pH level, and osmotic pressure.

• Concentration gradient, energy availability, and specific carrier proteins.

Provide an example of the application of osmosis in everyday life.

• When you place a sponge in a bucket of water, the water molecules move through the sponge, causing it to absorb the water.

• When you soak a piece of bread in a bowl of soup, the water molecules move into the bread, making it soggy.

• When you place a raisin in a cup of water, the water molecules move through the raisin's skin, causing it to swell and become plump.

• When you put a slice of cucumber in a bowl of saltwater, the water molecules move out of the cucumber, causing it to shrink and become dehydrated.

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