Short Questions.
Q.I: When and whom discovered the virus?
Ans: The first virus was discovered by W. Stanley in 1935.
Q.II: What is the name of the group of the edible fungus?
Ans: The name of the group of the edible fungus is mushroom.
Q.III: Which medicine is used to cure bacterial disease?
Ans: Antibiotics medicines are used to cure bacterial diseases.
Q.IV: Which group of bacteria produce nitrate for the environment?
Ans: Nitrifying bacteria produce nitrate for the environment.
Q.V: Name two viral, Bacterial, and fungus diseases.
Ans: Viral diseases: Polio, Aids
Bacterial diseases: Cholera, Typhoid
Fungal diseases: Ringworm, Athlete’s foot.
Long Questions
Exercise#2
Q.I: How do we get infections from microorganisms?
Ans: We get infections from microorganisms when it is enter our body through mouth, nose or wound and start growing there.
Q.II: What are the benefits of bacteria and fungi?
Ans: Benefits of Bacteria:
(1) It converts milk into yogurt.
(2) It converts sugar syrup into alcohol.
(3) It decomposes waste material in the environment.
Benefits of Fungi:
(1) It is used in baking industry.
(2) It is use in medicine.
(3) Yeast is used to make the flour decomposed.
Q.III: How can we protect ourselves by the infections of microorganisms?
Ans: We can protect ourselves from the infections of microorganisms by observing Islamic values of cleanliness, washing hands before and after eating, Brushing teeth and taking regular bath.
Q.IV: How can Virus survive?
Ans: Virus can survive only inside a living cell. As they come out of the cell they make crystals like non living things.