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WorksheetsKS3 BIO 07.5 - Body Defences
Total questions: 20
Worksheet time: 24mins
What is the role of nasal mucus?
collect dead cells
lubricate the nasal passage
make phlegm
trap particles
What am I? I prevent pathogens from entering the body.
Physical barrier
Chemical defence
What am I? I kill pathogens that enter the body
Physical barrier
Chemical defence
What am I? I am found in the lungs. I sweep mucus back up towards the throat so it can be coughed out or swallowed.
Mucus
Lysozyme enzymes
Hydrochloric acid
Cilia
What am I? I am a chemical defence found in tears. I am also secreted by glands onto the surface of our skin.
Mucus
Lysozyme enzymes
Hydrochloric acid
Cilia
I am a physical barrier that stops pathogens entering the body
Skin
Mucus
Hydrochloric acid
Lysozyme enzymes
I am a physical barrier that stops pathogens entering the body
Cilia
Mucus
Hydrochloric acid
Lysozyme enzymes
I am a chemical defence that kills pathogens that enter the body.
Cilia
Skin
Hydrochloric acid
Lysozyme enzymes
What am I? When damanged I form a scab over the wound to stop pathogens entering.
Cilia
Skin
Hydrochloric acid
Lysozyme enzymes
What does defense mean?
to change to fit the environment
to sleep all winter
to move during colder months
to protect
to stay alive
Phagocytes and lymphocytes are both types of
white blood cells
red blood cells
pathogens
lysozymes
Phagocytes kill pathogens by
engulfing and digesting them
producing antibodies
Phagocytes produce antibodies to kill infections
true
false
This type of white blood cell is called
phagocyte
lymphocyte
The two types of white blood cells are
phagocytes
lymphocytes
platelets
plasma
Phagocytes and lymphocytes are found in
all body cells
blood
