LATEST 2025/2026 COMPLETE TEST ACCURATE
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) A NEW UPDATED VERSION
|GUARANTEED PASS.
What three essential nutrients are obtained from the air as
carbon dioxide and as water?
Answer- Carbon (C), hydrogen (H), and oxygen (O)
Are Carbon (C), hydrogen (H), and oxygen (O) listed as
micronutrients or macronutrients?
Answer- Macronutrients
What is the name of nutrients required by plants to
complete their life cycle?
Answer- Essential nutrients or elements
Cations have a ___ charge
,Anions have a ___ charge
positive, negative
What does Silicon (S) do for the plant?
Answer- cell wall strength, reduces lodging, improves
adaptation to stresses like drought, improves pest
resistance and helps improve plant vigor
What does Sodium (Na) do for the plant?
Answer- improves photosynthesis in C4 plants and maybe
be able to substitute for potassium to some degree
What does Cobalt (Co) do for the plant?
, Answer- it's essential for nitrogen fixing bacteria in
legumes
What does Selenium (Se) do for the plant?
Answer- improves plant growth and is an essential
element for animals that obtain Se from the feed
What is the function of Nitrogen?
Answer- it's used in the synthesis of amino acids, proteins,
enzymes; found in chlorophyll (photosynthesis), ADP and
ATP (energy transfer)
What is the function of Phosphorus?
Answer- it's an important component of energy transfer
system (ADP, ATP); important to photosynthesis and