Cell Environment Review Game

Front

What is a hypotonic solution and how do plants respond to it?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell. Plants deal with hypotonic solutions by using their cell wall to maintain structure and prevent excessive water intake.

Front

Define Brownian movement.

Back

Brownian movement is the constant random movement of particles suspended in a fluid (liquid or gas) due to collisions with fast-moving molecules in the fluid.

Front

What is active transport and how does it differ from passive transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy (ATP). It differs from passive transport, which does not require energy and moves substances down their concentration gradient.

Front

What factors can increase the rate of diffusion?

Back

Factors that can increase the rate of diffusion include increasing temperature, increasing concentration gradient, and increasing surface area. Decreasing pressure does not increase diffusion; it may actually slow it down.

Front

Explain passive transport and provide an example.

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, moving down their concentration gradient. An example is the diffusion of oxygen into cells.

Front

What role does the cell wall play in plant cells?

Back

The cell wall provides structural support and protection, helping to maintain the shape of the cell and preventing excessive water intake in hypotonic environments.

Front

What is the significance of concentration gradients in cellular transport?

Back

Concentration gradients are crucial for both passive and active transport. They drive the movement of substances, with molecules moving from areas of high concentration to low concentration in passive transport, and from low to high concentration in active transport.

Front

Describe the process of osmosis.

Back

Osmosis is the diffusion of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the difference between facilitated diffusion and simple diffusion?

Back

Facilitated diffusion involves the use of transport proteins to help move molecules across the membrane, while simple diffusion does not require any assistance and occurs directly through the lipid bilayer.

Front

How does temperature affect the rate of diffusion?

Back

Higher temperatures increase the kinetic energy of molecules, leading to faster movement and a higher rate of diffusion.