Microbial World and Its Influence on Human Biology

The video explores the invisible microbial world within our bodies, highlighting how microbes, including bacteria, viruses, fungi, and protozoa, form communities and interact with human cells. These microbes outnumber human cells and genes, influencing digestion, immunity, metabolism, and even brain function. The potential to use microbes in treating neurological disorders is discussed, emphasizing their accessibility and the possibility of engineering them for medical purposes.

What do scanning electron microscopy images reveal about our bodies?

• They highlight the absence of microbes in the intestines.

• They display the outer surface of the skin.

• They reveal microbial cells inhabiting our bodies.

• They show only human cells.

What is the main focus of the laboratory mentioned in the video?

• Studying only human cells

• Exploring the invisible microbial world

• Analyzing plant cells

• Developing new medications

What is the ratio of microbial cells to human eukaryotic cells in our bodies?

• Twenty-to-one

• Five-to-one

• One-to-one

• Ten-to-one

How many unique microbial species are estimated to inhabit the human body?

• 20,000

• 10,000

• 5,000

• 1,000

Which human functions are influenced by microbes according to the video?

• Only immunity

• Only digestion

• Digestion, immunity, and metabolism

• Only metabolism

What additional complexity does the brain face according to the video?

• It acts in isolation.

• It responds to the needs of other body sites.

• It is not influenced by external factors.

• It is solely responsible for digestion.

What is the frontier of research regarding microbes and brain function?

• To ignore microbial influence on the brain

• To focus solely on physical health

• To use bacteria to hack into brain function

• To study only human genes

What is the potential benefit of using microbes in treating neurological disorders?

• They have no impact on the brain.

• They are difficult to access.

• They can be engineered and modified.

• They are impossible to eradicate.

How do microbes colonize the human body according to the video?

• Temporarily

• Intermittently

• Persistently

• Not at all

What is a key feature of microbes that makes them suitable for therapeutic use?

• They are difficult to modify.

• They do not interact with human cells.

• They can be engineered and eradicated if needed.

• They are inaccessible.