plant disease

Question 1

what are the plant defences? (7 things)

Answer 1

-thick cell walls
-waxy cuticle on leaves
-antibacterial chemicals
-Poisons to deter herbivores
-leaves which droop
-mimicry
-thorns and hairs

Question 2

what can plant diseases be detected by? (5 things)

Answer 2

-stunted growth
-Spots or discolouration
-Decay
-Growth or malformed stems
-The presence of pests

Question 3

lack of what ions can lead to stunted growth in plants?

Answer 3

Nitrate

Question 4

A lack of magnesium ions causes a lack of water in plants

Answer 4

Chlorophyll

Question 5

what are the physical plant defence responses? (3 things)

Answer 5

-cellulose cell walls
-Tough waxy cuticle
-Layers of dead cells (bark)

Question 6

what are the chemical plant defence responses? (2 things)

Answer 6

-antibacterial chemicals
-poisons

Question 7

what are the mechanical adaptations in a plant (3 things)

Answer 7

-thorns and hairs
-leaves which droop or curl
-mimicry