Plants

Question 1

What is the effect of nitrogen deficiency on plants

Answer 1

• Lower leaves yellow and dead

* Stunted growth

Question 2

What is the effect of phosphorus deficiency on plants

Answer 2

• Purple leaves

* Small roots

Question 3

What is the effect of potassium deficiency on plants

Answer 3

Potassium is used for making flowers and fruit.
• Poor flower and fruit growth
• Discoloured leaves

PD

Question 3

Why do plants need magnesium

Answer 3

For making chlorophyll

Question 4

What is the effect of magnesium deficiency on plants

Answer 4

Leaves turn yellow

Question 5

Why do plants need potassium

Answer 5

Potassium is needed for enzymes of respiration and photosynthesis

EOR
P

Question 7

Why do plants need phosphorus

Answer 7

For the making of DNA and cell membranes
Respiration and growth

FRG

Question 7

What are pesticides

Answer 7

Chemicals that are sprayed on plants to kill insects that can destroy the plant

Question 8

Why do plants need nitrogen

Answer 8

For making amino acids and proteins needed for cell growth

FP