5.10-11 More On Plant Disease And Plant Defenses

Question 1

What are the three types of plant mineral deficiencies ?

Answer 1

Nitrate, magnesium and insect/ pests

Question 2

What are some signs of a nitrate deficiency and what’s an explanation of it?

Answer 2

Stunted growth

Plants use nitrates to make amino acids and proteins for growth and repairs

Question 3

What are some signs of a magnesium deficiency and what’s an explanation of it?

Answer 3

Yellow leaves

Magnesium is used to make chlorophyll in leaves

Question 4

What are some signs of a insects/ pests and what’s an explanation of it?

Answer 4

Bite marks !!

Insect mouth parts can cause damage but also spread disease as they can act as a vector

Question 5

What are three types of plant defenses ?

Answer 5

Physical (barriers)
Chemical
Mechanical

Question 6

Expand of Physcial barriers, what are some examples ?

Answer 6

Bark on trees- layers of dead cells form a protective layer
Acts as a barrier against pathogens and herbivores

Question 7

Expand on chemicals, what are some examples ?

Answer 7

Antiobitic chemicals
Effective at preventing bacterial disease
Plants produce the chemicals

Question 8

Expand on mechanical what are some examples ?

Answer 8

Thorns, unpleasant and painful to eat, act as a repellent to herbivores

Dropping/ curling when touched
A rare but effective mutation that causes the plant to droop scaring the animal or making an insect drop off