OR Bio Unit 0 Final Review

Front

What is a property of life shared by prokaryotic cells and eukaryotic cells, but not viruses?

Back

The ability to process energy through metabolic reactions.

Front

Which taxa are prokaryotic in the three domains of life?

Back

Bacteria and Archaea.

Front

What did Carl Woese use to suggest a new organization for life on our planet in the 1970s?

Back

Molecular data.

Front

What is the estimated length of a mitochondrion as seen under an electron microscope?

Back

1.5 μm (or 1.5 X 10^3 nm or 1.5 X 10^-3 mm).

Front

What is the estimated width of the two-layered mitochondrial membrane?

Back

~ 30 nm.

Front

Define prokaryotic cells.

Back

Cells that lack a nucleus and membrane-bound organelles, such as bacteria and archaea.

Front

Define eukaryotic cells.

Back

Cells that have a nucleus and membrane-bound organelles, such as plant and animal cells.

Front

What are the three domains of life?

Back

Bacteria, Archaea, and Eukarya.

Front

What is the role of mitochondria in cells?

Back

Mitochondria are the powerhouses of the cell, responsible for producing ATP through cellular respiration.

Front

What is the significance of molecular data in classifying organisms?

Back

Molecular data provides insights into genetic relationships and evolutionary history among organisms.