Biology Book 2 Only Lesson 1 Flashcards
What does it mean for a disease to be communicable
Can be transmitted from one person to another
What does it mean for a disease to be non-communicable
Cannot be transmitted from one person to another
What are 4 examples of comunicable disease
Measles
Mumps
Rubella
Malaria
What are 4 examples of non- communicable diseases
Cancer
Heart attack
Diabetes
Asthma
Pathogens are
Microbes that cause harm
What are the three main pathogens
Bacteria
Fungi
Virus
What shape are cocci bacteria
Spherical
What shape are bacilli bacteria
Rod-shaped
What shape are spirochete bacteria
Spirals
What do some Bactria have to help with movement
Flagellum
What are some of the harmful affects of bacteria
Causes diseases like salmonella, tuberculosis and bacterial infections can be treated with antibiotics. They also chase food to go off
How can bacteria be useful for human
Yogurt production - bacteria ferments the lactose in milk into acid which gives yogurt tangy taste
Sewage treatment- bacteria breaks down waste into simpler compounds, creating less waste
Genetic engineering- bacteria is used to replicate modified DNA , creating things like insulin
What does a virus look like
A head capsule with DNA with a long tail at the end a plate is attached
Why are viruses dangerous
They cause many diseases including
Chicken pox
Mumps
AIDS
and flu viruses can change into many different forms meaning that you cannot be immune to the flu
How is a virus useful for humans
Genetic engineering
