K.C.S.E Biology Q & A - MODEL 2001PP1QN13
The diagram below represents the nitrogen cycle
(a) State the process labeled
A D (b) Name the compound represented by B (c) Name the group of organisms labeled C (d) (i) name the group of plants which promote process A (ii) State the part of the plant where process A takes place (e) How would excess pesticides in the soil interfere with process A
answers
​(a) A – Nitrogen fixation
D – absorption (b) Nitrate/ nitrates/ NO2 (c) Denitrifying bacteria/ Denitrifiers (d) (i) Leguminous plants, (acc. Legume/ acc examples e.g beans peas) (ii) Roots nodules; rej root or nodules alone; acc; root (e) – Killing / reducing of composers - Killing/reduction of nitrogen fixing bacteria/ nitrogen fixing microorganisms - Destruction of leguminous plants |
TOPICSFORM 1
Form 2
Form 3
Form 4
ARCHIVES
CATEGORIES
Categories
All
RSS FEEDS
|