LESSON 3

Question 1

A long, whip-like structure used for movement in some cells, especially in bacteria.

Answer 1

Flagellum

Question 2

Single-celled, prokaryotic microorganisms with no nucleus and have a variety of shapes.

Answer 2

Bacteria

Question 3

Single-celled, prokaryotic organisms similar to bacteria but genetically and biochemically different, often found in extreme environments.

Answer 3

Archaea

Question 4

Organisms with eukaryotic cells, meaning they have a nucleus and other membrane-bound organelles

Answer 4

Eukarya

Question 5

A unit of genetic regulation in prokaryotes that includes a set of genes controlled by a single promoter.

Answer 5

Operon

Question 6

Organic molecules, such as fats and oils, that are important for energy storage and making up cell membranes.

Answer 6

Lipids

Question 7

Organic molecules, like sugars and starches, used for energy and structural support in cells

Answer 7

Carbohydrates

Question 8

Large, complex molecules made up of amino acids that perform a variety of functions in the body, such as enzymes, structural components, and signaling molecules.

Answer 8

Proteins