Types of Disease
What are the four main types of disease?
Pathogenic, deficiency, hereditary, physiological
What is a vector?
An organism that carries and transmits pathogens
What is the goal of treating a disease?
o relieve symptoms and, if possible, cure it.
What is growth?
A permanent increase in size and complexity of an organism
What part of a plant contains cells that allow it to grow?
Meristems
What type of disease is caused by pathogens such as bacteria and viruses?
Pathogenic disease
Name a disease transmitted by mosquitoes.
Malaria, dengue, yellow fever, chikungunya
What are antibiotics used to treat?
Bacterial infections
What type of cell division contributes to growth?
Mitosis
Name two factors that affect plant growth.
Light, water, nutrients, temperature
Give an example of a deficiency disease.
Scurvy, anemia, kwashiorkor,
How does the female Anopheles mosquito spread malaria?
It bites a human and transfers the Plasmodium parasite.
Why is good nutrition important in preventing deficiency diseases?
It provides essential nutrients to maintain body functions.
What is the sigmoid growth curve?
An S-shaped curve showing different growth phases
What is differentiation in growth?
When cells specialize for specific functions.
What is the difference between hereditary and physiological diseases?
Hereditary diseases are passed through genes, while physiological diseases result from organ malfunction.
Why do mosquitoes act as reservoirs for diseases?
They carry pathogens without getting sick and spread them through bites.
How can vaccines help control diseases?
They stimulate the immune system to create immunity
Why does dry mass provide a more accurate measure of growth than wet mass?
It removes the effect of water content.
In what stage of human life does the fastest growth occur?
Infancy and puberty
Why are pathogenic diseases also called communicable diseases?
They can spread from one person to another.
List two ways to control mosquito populations.
Draining standing water, insecticides, introducing larva-eating fish, etc
What are two public health strategies used to control disease spread?
Quarantine, vaccination, sanitation, hygiene education, etc.
What is the difference between primary and secondary growth in plants?
Primary growth increases length, secondary growth increases width.
What are the three main stages of seed germination?
Water absorption, enzyme activation, growth of radicle and plumule.