Question

Diffusion/Osmosis

• Definition of Diffusion vs. Osmosis

• Define solute vs. solvent

• explain movement of water and physical characteristics of an ex: cell placed into different environments.

Lab 3: Histology

• What are the 4 main types of tissues?

• What are the two ways epithelial tissue are organized?

Epithelial Tissue:

• Be able to answer where the following tissues are located and their functions

  • Simple Squamous

  • Stratified Squamous

  • Simple Cuboidal

  • Simple Columnar

Connective tissue:

• What are the 4 types of connective tissue?

• What are the two types of skin connective tissue covered? What are their functions?

• What are three differences between cartilage and bone?

Nervous Tissue:

• How is a Neuron different from Neuroglia?

Answer 1

• Definition of Diffusion vs. Osmosis

Diffusion is the movement of substances from their higher concentration to lower concentration.

Osmosis is the movement of water from its higher concentration to its lower concentration through the semipermeable membrane.

• Define solute vs. solvent

The solute is a substance that is present in more amounts.

Solvent is a substance that is present in less amount.

• explain the movement of water and physical characteristics of an ex: cell placed into different environments.

The movement of osmosis is of two types.

Endosmosis- In this water enters the cell.

Exosmosis- In this water exits the cell.

There are three types of solutions-

Hypertonic solution- It is a solution having more amount of solute as compared to the cell placed inside it.

Hypotonic solution- It is a solution having less solute as compared to the cell placed inside it.

Isotonic solution- It is a solution having equal solute as compared to the cell placed inside it.

When the cell is placed inside a hypertonic solution then the cell shrinks.

When the cell is placed inside a hypotonic solution then the cell swells.