Life Science Bacteria

2/3-8.L.1: Bacteria

Lesson and Quiz

Multiple Choice

Bacteria is:

• Single-celled (only one cell)

• multicellular (made of many cells)

Multiple Choice

Bacteria are enclosed in a protective barrier called a:

• membrane

• net

• capsule

• flagella

Multiple Choice

Which statement about bacteria is FALSE?

• Bacteria do not have DNA

• Bacterial cells are prokaryotic

• Bacteria are single-celled

• Bacteria have ribosomes

Round, Coccus----------------------------------------Rod, Baccillus-----------------------------------Spiral, Sprillium

Multiple Choice

Bacteria is grouped according to:

• size

• shape

• color

• behavior

Multiple Choice

Round bacteria is called:

• Coccus

• Sprillium

• Euglena

Multiple Choice

Pathogens are:

• biological agents that can only harm humans

• dead bacteria cells

• Biological agents that are helpful to their hosts

• Biological agents that cause illness or disease to their hosts

Multiple Choice

Once inside the body, pathenogenic bateria:

• eats

• replicates

• dies

• transforms

Multiple Choice

All bacteria are harmful

• True

• False

Multiple Choice

What is a vector?

• organisms that become infected with a disease

• organisms that do not spread disease

• organisms that transfer disease to another organism, usually through a bite

• organisms that have germs

Multiple Choice

Fleas on rats were vectors for the bubonic plague during middle ages Europe

• True

• False