What is a bacteria GCSE?

What is a bacteria GCSE?

Bacteria are microscopic single-celled organisms. Examples of bacteria include: Lactobacillus bulgaricus (a rod-shaped bacterium used to make yoghurt from milk) Pneumococcus (a spherical bacterium that acts as the pathogen that causes pneumonia)

How do bacteria make us ill BBC Bitesize?

Some bacteria cause diseases, including food poisoning, meningitis and scarlet fever. Inside the body, these bacteria reproduce quickly. They produce poisons that make you feel ill. Anyone who cooks needs to know how to prevent bacteria spreading in their kitchens, to ensure all the food they produce is safe to eat.

What are the main features of bacteria?

There are three notable common traits of bacteria, 1) lack of membrane-bound organelles, 2) unicellular and 3) small (usually microscopic) size. Not all prokaryotes are bacteria, some are archaea, which although they share common physicals features to bacteria, are ancestrally different from bacteria.

How do bacteria cause disease GCSE?

They infect a host, reproduce themselves or replicate if it is a virus, spread from their host and infect other organisms . They also all have structural adaptations that make them successful at completing their life cycles, which enable them to cause further disease.

What are bacteria ks2?

Bacteria are single-celled, or unicellular organisms. Bacteria are so small that we need a microscope in order to see them. Bacteria can be found everywhere, including in the air, on our skin, in the ground, in our bodies, and in nature. Bacteria are microorganisms which need nutrition from their environment.

What is the role of bacteria in the digestive system BBC Bitesize?

Gut bacteria help to digest food. They also help to prevent diabetes, obesity, and some types of cancer.

What are 3 types of bacteria?

Summary. There are three basic shapes of bacteria: coccus, bacillus, and spiral.