Human+Cells+and+Tissues+Hw+Pk

Chapter 3 CELLS

- A cell is a microscopic organism.
 * (1) What is a Cell?**

- The cell theory states that a cell is the basic unit of life and that nothing smaller than a cell is alive.
 * (2) What does the cell theory state?**

- Cells are so small because it requires a smaller amount of nutrients and releases less waste than a larger cell.
 * (3) Why are cells so tiny?**

//3.2 Evolutionary History of the Human Cell// - The eukaryote cell has a nucleus, plasma and a plasma membrane.
 * (4) What are the three main parts of a eukaryotic cell?**

- Prokaryotes do not have a nucleus bu they do have a plasma membrane.
 * (5) Which of these also occur in prokaryotes (bacteria)? Which one does not occur?**

- They could have arisen by a larger archae eating the two organelles and have them work for the cell.
 * (6) How might the nucleus, the endomembrane system, and two of the organelles in eukaryotic cells have arisen?**

//Chapter 4 TISSUES// - A tissue is a composition of specialized cells of the same type tht perform a common function in the body.
 * (7) What is a tissue?**

- Connective tissue binds and supports the body parts. Muscular tissue moves the body and its parts. Nervous tissue recieves stimuli and conducts nerve impulses. Epithelial tissue covers the body surfaves and lines body cavative.
 * (8) What are the four major types of tissues found in the human body? Also describe each one.**

Pictures would be nice.