Bacteria and Lymphatic System

Front

What are the structures of bacteria cells?

Back

Cell wall, plasmid, flagella, and pili.

Front

Why are viruses not considered alive?

Back

Viruses are not considered alive because they cannot reproduce on their own and lack cellular structure.

Front

What is the difference between gram positive and gram negative bacteria?

Back

Gram positive bacteria have a thick peptidoglycan layer in their cell wall and stain purple, while gram negative bacteria have a thin peptidoglycan layer and an outer membrane, staining pink.

Front

Where are the lymph nodes located?

Back

Lymph nodes are located throughout the body, including the neck, armpits, groin, and abdomen.

Front

What are the functions of the lymphatic system?

Back

The lymphatic system helps maintain fluid balance, absorbs fats from the digestive tract, and provides immune defense.

Front

What is the pathway of the lymphatic system?

Back

The lymphatic system pathway includes lymph capillaries, lymph vessels, lymph nodes, and lymph ducts, eventually draining into the bloodstream.

Front

What is the role of peptidoglycan in bacterial cell walls?

Back

Peptidoglycan provides structural support and shape to bacterial cell walls, and is thicker in gram positive bacteria compared to gram negative bacteria.

Front

How do lymphocytes contribute to the immune system?

Back

Lymphocytes, including T cells and B cells, play a crucial role in the immune system by identifying and neutralizing pathogens like bacteria and viruses.

Front

What is the significance of the outer membrane in gram negative bacteria?

Back

The outer membrane in gram negative bacteria provides an additional barrier to environmental threats and contributes to antibiotic resistance.

Front

What is the role of pili in bacterial cells?

Back

Pili are hair-like structures on the surface of bacterial cells that help in attachment to surfaces and in the exchange of genetic material during conjugation.