Plant Nutrients
What are the needs of plants
Guided notes
Part I
Photosynthesis and Respiration
Photosynthesis is the ability of green plants
to convert _______________energy into
stored chemical energy.
Solar
1
Photosynthesis takes place in the
________which contains green pigment
called ___________
Chloroplast
Chlorophyll
2
In addition to sunlight,
photosynthesis needs _________ and
__________ to work
Carbon Dioxide
H2O
3
Photosynthesis produces sugar, water,
and ___________.
4
Stored energy from photosynthesis is in
the form of __________
Glucose
5
Sugar created by photosynthesis maybe
converted to _____________for longer
term storage.
Carbohydrates (starch)
6
Starch - 1. A naturally abundant
nutrient carbohydrate, (C6H10O5)
found chiefly in the seeds, fruits,
tubers, roots, and stem pith of
plants, notably in corn, potatoes,
wheat, and rice.
Carbohydrates - Any of a group of
organic compounds that includes
sugars, starches, celluloses, and
gums and serves as a major energy
source in the diet of animals. These
compounds are produced by
photosynthetic plants and contain
only carbon, hydrogen, and
oxygen, usually in the ratio 1:2:1.
The process of breaking down
stored energy is ______________.
7
Plant growth mostly takes place at
_____________?
Night
8
In order to break down the stored
sugars, plants must produce
chemicals called___________?
• Four plant enzyme groups exist:
• Proteases - break long protein chains into smaller amino
acid chains and eventually into single amino acids
• Amylases - reduce polysaccharides to disaccharides:
lactose, maltose, and sucrose
• Lipases - break triglycerides into individual fatty acids
and glycerol
• Cellulases - digest specific carbohydrate bonds found in
fiber
9
The equation for respiration is the
___________of photosynthesis.
Opposite
10
Part II
Plant Nutrition
Nutrients in the soil must first be
________ before being absorbed
by the plant
Dissolved
How many essential nutrients are
there for plants?
16 (some sources
cite 17 or 18)
Nutrients needed in the largest
amounts are called?
Nutrients that are needed in low
amounts are called.
Micronutrients
A shortage of a given nutrient
needed by the plant is a ….
Deficiency
What is another name for
micronutrients?
Trace elements
The acidity or alkalinity of the soil
is its….
pH
The term for nutrients washing out
of the soil is
Leaching
Part III
Essential Nutrients
What are the 3 elements plants
obtained from atmosphere and water?
Symbol
C
Name
Carbon
Symbol
H
Name
Hydrogen
Symbol
O
Name
Oxygen
What are the 6 macronutrients
used by plants? List the 3 most important first
Symbol
N
Name
Nitrogen
Symbol
P
Name
Phosphorus
Symbol
K
Name
Potassium
Symbol
Ca
Name
Calcium
Symbol
Mg
Name
Magnesium
Symbol
S
Name
Sulfur
What are the 7 micronutrients
plants obtain from the soil?
Symbol
B
Name
Boron
Symbol
Cu
Name
Copper
Symbol
Cl
Name
Chlorine
Symbol
Fe
Name
Iron
Symbol
Mn
Name
Manganese
Symbol
Mo
Name
Molybdenum
Symbol
Zn
Name
Zinc