Human bio- Cell Theory

What does the cell theory state?

Cells are the most basic units of life and all organisms are made up of cells.

What are the two types of living organisms based on cell number?

Single-celled organisms and multicellular organisms.

What is the lowest structural level of organization in living organisms?

Cells.

What is the function of red blood cells?

To carry oxygen around the body.

What is the function of muscle cells?

To assist in muscle contraction.

What is tissue?

A group of cells that are grouped together based on their function.

How many types of tissues are there in the human body?

Four types.

What is the function of epithelial tissue?

Lining or covering tissue, such as the outer layer of skin or the inner layer of the heart.

What is the role of connective tissue?

Helps hold body parts together, examples include cartilage and tendons.

What are the three types of muscular tissue?

Skeletal, smooth, and cardiac.

What is the function of nervous tissue?

To carry messages from one part of the body to another, examples include the spinal cord and the brain.

What is an organ?

A structure made up of two or more types of tissues working together.

Can you give an example of an organ and its tissue types?

The heart, which has both muscular tissue and nervous tissue.

What is an organ system?

A group of organs that work together to complete an overall function.

What organs are involved in the respiratory system?

Lungs, diaphragm, intercostal muscles, trachea, larynx, and nose.

How does cell structure relate to its function?

The structure of cells is specialized to meet the requirements of life.