Defense Flashcards
(8 cards)
1
Q
Structural defences of plants
A
Waxy cuticle
Thick cell wall
Bark (dead cells )
2
Q
Chemical defence of a plant
A
Antibacterial toxins
Poison
3
Q
Mechanical defence of a plant
A
Thorns /hairs
Leaves droop or curl
Mimickry
4
Q
What is phagocytosis
A
Where a phagocyte (wbc) engulfs a pathogen and destroys it with enzymes
5
Q
Why do we use a placebo
A
As a control variable
6
Q
What is a double blind trail
A
Where neither the doctor or patient know if it’s a placebo or not to make sure results are non biased
7
Q
What do clinic trials do
A
Check fo safety , optimum dosage and effectiveness
8
Q
In what order are drugs tested
A
Computer / human skin/ cells
Animals
Healthy volunteers
