Biological Organization and Function

The video explains the hierarchy of biological organization from cells to systems. It starts with cell theory, highlighting that all living things are made of cells, which are differentiated to perform specific functions. These cells form tissues, which then form organs. Multiple organs work together to create organ systems, such as the digestive system, which function to sustain the organism. The video concludes with a recap of this hierarchical structure.

What is the starting point in the hierarchy of biological organization?

• Systems

• Cells

• Tissues

• Organs

Which of the following is NOT a part of the biological hierarchy discussed?

• Organs

• Tissues

• Cells

• Molecules

What is the primary characteristic of differentiated cells?

• They perform specific functions within an organism.

• They are identical in structure.

• They have no specific function.

• They all perform the same function.

What is the function of a surface lining cell?

• To line the surface of an organ

• To transport oxygen

• To store nutrients

• To produce energy

What do we call a group of similar and different cells working together?

• Organism

• System

• Tissue

• Organ

Which of the following is an example of an organ?

• Stomach tissue

• Digestive system

• Stomach

• Cell membrane

What is formed when different types of tissues come together?

• An organ

• A system

• A cell

• An organism

What is the role of the digestive system?

• To protect the body from pathogens

• To take nutrients from outside the body and get them into the bloodstream

• To provide structural support

• To circulate blood

How do systems contribute to the formation of a complete organism?

• By forming cells

• By working together

• By forming tissues

• By working independently

Which of the following best describes an organism?

• A single organ

• A single cell

• A group of tissues

• A collection of systems working together