Skin Fungal Infections and Management

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Why are viruses considered non-living?

They respire like other living organisms

They can form crystals and survive for many years (correct)

They have a core of DNA or RNA surrounded by a protein coat

They can reproduce outside the body of a host

Which of the following is NOT a characteristic of viruses?

Core of DNA or RNA surrounded by a protein coat

Presence of nucleus, ribosomes, and mitochondria (correct)

Non-cellular or acellular nature

Ability to reproduce within cells of a living organism

How do humans usually get infected with rabies?

Through consuming contaminated food

Through contact with infected animals' urine

By being bitten by a rabid animal (correct)

Through inhalation of airborne virus particles

What is the incubation period for rabies?

Up to 60 days Signup and view all the answers

Which of the following diseases is caused by a virus?

Measles Signup and view all the answers

What is a key symptom of cholera?

Watery diarrhea Signup and view all the answers

Which of the following is a recommended management practice for cholera?

Boiling water before drinking Signup and view all the answers

What is a distinctive difference between bacteria and viruses?

Ability to reproduce independently Signup and view all the answers

What is a general characteristic of protists?

Can be unicellular or multicellular Signup and view all the answers

What is the main method of nutrition for protists?

Absorption Signup and view all the answers

What is a key practice to prevent cholera?

Using water purification tablets Signup and view all the answers

What do autotrophic micro-organisms do?

Provide food for consumers through photosynthesis and chemosynthesis Signup and view all the answers

How do nitrogen-fixing bacteria benefit plants?

They produce nitrates for the plant Signup and view all the answers

What is the role of denitrifying bacteria in the nitrogen cycle?

Return N-gas to the atmosphere Signup and view all the answers

How can one prevent fungal infections on the skin?

Apply fungal ointments or powders Signup and view all the answers

In which type of relationship do nitrogen-fixing bacteria and plants engage?

Mutualism Signup and view all the answers

What should be worn to avoid infections in public showers?

Wear slip-slops in public showers Signup and view all the answers

Where are B-lymphocytes found?

In the tonsils, lymph glands, spleen, and in the blood Signup and view all the answers

What is the function of antibodies produced by B-lymphocytes?

Destroy germs Signup and view all the answers

Which type of white blood cells destroy body cells infected with viruses or parasites?

Killer T-cells Signup and view all the answers

What is the process where phagocytes engulf bacteria by flowing pseudopodia around them called?

Phagocytosis Signup and view all the answers

How do vaccines provide long-lasting protection against diseases?

By stimulating the production of antibodies by lymphocytes Signup and view all the answers

What is artificially acquired active immunity?

Immunity gained through vaccination Signup and view all the answers

What is the purpose of carbon dioxide in the baking of bread?

To make the bread dough rise Signup and view all the answers

Which type of organisms consist of only one cell?

Unicellular Signup and view all the answers

What is the role of alcohol in beer production?

To add flavor and alcohol content to the beer Signup and view all the answers

What is a plasmid in bacterial cells?

A small, ring-shaped DNA molecule found in the cytoplasm Signup and view all the answers

What is binary fission?

A type of asexual reproduction that occurs in bacteria Signup and view all the answers

What does a flagellum do in bacteria?

Is used for locomotion Signup and view all the answers