Defense Flashcards Preview

Biology Easter Mock > Defense > Flashcards

Flashcards in Defense Deck (8)
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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