Question

1. in the above diagram the semi - permeable membrane is shown. if the molecules moving are water then this would be an example of osmosis. if the molecules moving are oxygen, then this would be an example of. what state has been reached in the right - hand side of the diagram? is this active or passive transport? 5. put the following in order from smallest least complex to largest most complex: tissue, cell, organ system, organism, organ

Explanation:

• Diffusion: Oxygen molecules move from an area of higher concentration to an area of lower concentration across the semi - permeable membrane. This is the definition of diffusion.
• Equilibrium: In the right - hand side of the diagram (assuming a state where the concentration of molecules is uniform on both sides of the membrane), equilibrium is reached. At equilibrium, there is no net movement of molecules across the membrane.
• Passive transport: Both osmosis (movement of water) and diffusion (movement of oxygen in this case) are examples of passive transport. Passive transport does not require energy input as molecules move down their concentration gradient.
• Order of biological organization:
• A cell is the basic unit of life.
• Tissues are made up of a group of similar cells working together.
• Organs are made up of different tissues working together.
• Organ systems are made up of different organs working together.
• An organism is made up of different organ systems working together.

Answer:

• If the molecules moving are oxygen, then this would be an example of diffusion.
• The state reached in the right - hand side of the diagram is equilibrium.
• This is passive transport.
• Order from smallest/least complex to largest/most complex: cell, tissue, organ, organ system, organism