Food Energy and Respiration - Science Learning 7

Practice Food Energy and Respiration questions with answers. This prep guide includes questions like, what are symptoms of cold?, how can cold prevented?, what is flu?, how flu virus enters?, what are first symptoms of flu? and others below.

Food Energy and Respiration Learning 7

Question: What are symptoms of cold?

Answer: The two common symptoms of cold are running nose and sore throat. Other then these, there maybe temperature or headaches.

Question: How can cold prevented?

Answer: Cold can be prevented by many ways. Getting a balanced diet, getting plenty of sleep and breathing fresh air. Using handkerchief or a tissue paper to prevent virus to transfer from infected person to a normal person.

Question: What is flu?

Answer: The full form of flu is 'influenza'. Like cold, flu is also caused by a typical virus, but the type of virus is different from that of the virus of cold. Some of the symptoms of cold and flu are similar like running nose.

Question: How flu virus enters?

Answer: Flu virus enters from mouth, nose or eyes and make their way towards the throat. When these viruses reach the throat they start to multiply moving towards the lungs.

Question: What are first symptoms of flu?

Answer: The first common symptoms of flu are three i.e. runny nose, sore throat and cough. If not treated at an early stage the symptoms can get stronger and stronger.