Cell Behavior in Different Environments

The video explains diffusion and osmosis, highlighting how particles move from high to low concentration areas. It describes dynamic equilibrium, where particles continue moving equally in all directions. Osmosis, the diffusion of water, is crucial for cell survival. The video discusses how cells maintain equilibrium in different environments and the effects of water imbalance, such as cell bursting or wilting.

What happens to the purple dye when it is placed in water?

• It sinks to the bottom.

• It evaporates.

• It spreads out evenly.

• It changes color.

What is the term for the continuous movement of particles even after they are evenly distributed?

• Dynamic equilibrium

• Stagnation

• Static equilibrium

• Osmosis

What is the process called when water diffuses across a membrane?

• Evaporation

• Osmosis

• Condensation

• Filtration

In which direction does osmosis occur?

• From high to low water concentration

• From low to high water concentration

• From high to low solute concentration

• From low to high solute concentration

What happens to a cell in an environment with pure water?

• It becomes dormant.

• It bursts.

• It shrinks.

• It remains unchanged.

How do plant cells prevent bursting in a pure water environment?

• By having a cell wall

• By using energy to pump out water

• By having a thicker membrane

• By reducing their size

What happens to a cell in a very salty environment?

• It remains the same.

• It becomes turgid.

• It shrivels up.

• It absorbs more water.

What is the role of the central vacuole in plant cells?

• To maintain cell shape

• To produce energy

• To transport water

• To store nutrients

Why is it crucial for cells to maintain equal water concentration inside and outside?

• To avoid cell damage

• To enhance growth

• To prevent energy loss

• To increase metabolism

What is the consequence of an imbalanced water environment for cells?

• Enhanced metabolism

• Cell death

• Cell division

• Increased growth