Biological Hierarchy and Cell Structure

The video explains the hierarchical organization of living organisms, comparing it to a company's structure. It covers both macroscopic and microscopic levels, from the biosphere to atoms, highlighting how each level interacts to sustain life.

What is a hierarchy in the context of an organization?

• A structure with equal authority

• A random arrangement of roles

• A system with different levels of authority

• A network of independent units

How is the hierarchical organization in biology similar to that in a company?

• Both lack a clear structure

• Both involve different levels of structure

• Both are based on random processes

• Both have a single level of operation

Which of the following is the broadest level of biological hierarchy?

• Population

• Ecosystem

• Community

• Biosphere

What does a community in biological terms refer to?

• A single organism

• All environments on Earth

• A specific array of organisms in an ecosystem

• All individuals of a species in an area

Which of the following is NOT a part of the microscopic hierarchical levels?

• Tissues

• Cells

• Biosphere

• Organ systems

What is the primary function of tissues in an organ?

• To provide a specific function for the organism

• To store genetic information

• To act as independent units

• To form the entire organism

Which of the following is the smallest unit of life?

• Organelles

• Cells

• Molecules

• Atoms

What role do organelles play in a cell?

• They are responsible for photosynthesis

• They form the outer layer of the cell

• They perform specific functions within the cell

• They are the smallest units of life

Which of the following is a molecule?

• Epithelial tissue

• Glucose

• Chloroplast

• Pancreas

What is the smallest structure studied in the class?

• Cells

• Molecules

• Atoms

• Organelles