Bacterial Shapes and Characteristics

The video tutorial explains the classification of bacteria based on their shapes, including coxy, bacilli, and spirilla. It describes the structure of bacterial cells, highlighting their smaller size compared to plant or animal cells, and their composition, including a cell membrane and wall. Bacterial cells are identified as prekaryotes, lacking a nucleus and other internal structures found in plant and animal cells. The tutorial also discusses the diversity among bacteria in terms of form and nutritional methods.

What is one way scientists classify bacteria?

• By their shape

• By their habitat

• By their color

• By their size

Which of the following is a spherical-shaped bacterium?

• Spirilla

• Bacilli

• Vibrio

• Coxy

How do bacterial cells compare in size to plant and animal cells?

• They are the same size

• They vary in size

• They are larger

• They are smaller

What is a key characteristic of prokaryotic cells?

• They are larger than eukaryotic cells

• They have a nucleus

• They lack a nucleus

• They have multiple internal structures

In what way do bacterial cells differ from plant and animal cells?

• They have a cell membrane

• They lack internal structures

• They contain cytoplasm

• They have a cell wall