Chapter 3 : Nutrition in Plants Flashcards
What are plant nutrients for?
to grow well and produce high yields
Name the main macronutrients…
a)
b)
c)
a) carbon
b) hydrogen
c) oxygen
How are the remaining nutrients taken in by the plants?
in the form of mineral salts (dissolved in the soil through fertilisation)
List all Macronutrients
Carl HyMaO PoNi SuP
Functions of C,O,H. (2)
- important for carbon cycle & oxygen cycle
- synthesis of sugar
Effects X C,O,H (2)
- photosynthesis cannot take place (less oxygen)
- stunted growth [death] {no glucose how to live…}
Functions of Ca. (1)
-main component for middle lamella, cell wall & spindle fiber during cell division
Effects X Ca (3)
- stunted growth
- leaves distorted & lobed
- leaf veins become yellowish
Functions of Ma (3)
- main chlorophyll molecule
- activates enzymes
- carbohydrate metabolism
Effects X Ma (3)
- matured leaves yellowish
- red spot on leaf
- lobed leaves
Fuctions of Po (K) (3)
- protein synthesis & carbohydrate metabolism
- cofactor
- maintain plant turgidity
Effect X Po (K) (2)
- leaf edges yellowish
- premature death
Function of Ni (Nitrogen) (2)
- give green colour (formation of chlorophyll)
- main for proteins, nucleic acid and enzymes (in photo & respi)
Effect X Ni (Nitrogen) (4)
- chlorosis
- underlying leaves fall
- protein synthesis disrupt
- stunted growth
Function of Su (2)
- component for some amino acids
- component for vitamin B & some coenzymes
Effects X Su (1)
-leaves/plant turns yellow
Function of Pho (P) (2)
- synthesise nucleic acid, ATP, phospholipids
- coenzyme in photo & respi
EffectsX Pho (P) (3)
- unhealthy root growth
- form dark green & dull leaves
- red / purple spots appearing on older leaves
List all micronutrients…
ChloZi ICoMn NiBoMo
Function of Chlo (2)
- osmotic pressure
- photosynthesis
Effects X Chlo (4)
- plant wilts
- slower root growth
- chlorosis
- less fruit
Function of Zi (3)
- leaf formation
- auxin synthesis
- cofactor for carbohydrate metabolism
Effects X Zi (2)
- chlorosis spots on leaves
- stunted growth
Function of I (Fe) (2)
- cofactor for chlorophyll synthesis
- growth of young plants
Effects X I (Fe) (1)
-Young leaves yellowish
Function of Co (2)
- nitrogen metabolism & photosynthesis
- growth, repro & flower
Effects X Co (3)
- young shoot apex dead
- brown spot on terminal leaves
- stunted
Functions of Mn (2)
- activates photosynthetic enzymes
- cell respi & nitrogen metabolism
Effects X Mn (2)
- network dark green leaf veins
- light brown / grey spots between leaf veins
Functions of Ni (1)
-involved in urea breakdown –> ammonia [used by plant]
Effects X Ni (3)
- stunted growth
- reduce crop production
- burnt effect at leaf ends [urea accumulation]
Function of Bo (2)
- calcium uptake in roots & sucrose translocation
- carbohydrate metabolism & pollen formation
Effects X Bo (2)
- terminal buds dead & abnormal growth
- leaves thicker, rolled up & fragile
Functions of Mo (Molybdenum) (1)
-nitrogen fixation & nitrate reduction during protein synthesis
Effects X Mo ()
- chlorosis between matured leaf veins
- leaf become pale green
- reduces crop production
Wilhelm Knop made…
Knop’s solution
Knop’s solution contains…
CaPoPo MagI DI
Calcium nitrate, Potassium nitrate, Potassium dihydrogen phosphate, Magnesium sulphate, Iron (II) phosphate, Distilled water
Function of roots include…… (2)
- provide support & strength to anchor the plant in the soil
- absorb water & mineral salts from soil & transport them to the stem & leaves
Imagine the Root structure.
Root collar, primary root, lateral root, root hair, root cap
Function of ROOT COLLAR
connected to the base of plant
