Question

Q1. Microorganisms cause infections but the human body has many ways of defending itself against microorganisms. Describe any two ways in which the body prevents the entry of microorganisms.​

Answer 1

Answer:

The body's other defences against microbes

digestive tract - the mucous lining contains antibodies, and the acid in the stomach can kill most microbes. other defences - body fluids like skin oil, saliva and tears contain anti-bacterial enzymes that help reduce the risk of infection.

Answer 2

In general, your body fights disease by keeping things out of your body that are foreign. Your primary defense against pathogenic germs are physical barriers like your skin. You also produce pathogen-destroying chemicals, like lysozyme, found on parts of your body without skin, including your tears and mucus membranes.

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