Which of the following element is present in chlorophyII molecule?
iron
copper
manganese
magnesium
Which of the following element is essential for photosynthetic oxygen evolution?
iron.
gold
The soil particles, particularly clay and organic matter in soil, contain negative charges that attract positively charged ions such as
K+
Mg+
Ca++
all of these
How many ATP molecules are produced by aerobic oxidation of one molecule of glucose ?
2
14
34
38
The plants make glucose from
stem and root
water and oxygen
water and minerals
water and carbon dioxide
The major portion of the dry weight of plants comprises of
carbon, hydrogen and oxygen
carbon, nitrogen and hydrogen
calcium, magnesium and sulphur
nitrogen, phosphorus and potassium
The element molybdenum participates in
flowering
nitrogen fixation
chromosome coiling
carbon assimilation
Gray spots of oat are caused by the deficiency of
Zn
Mn
Fe
Cu
Boron in green plants assists in
photosynthesis
sugar translocation
activation of enzymes
acting as enzyme cofactor
Translocation of organic materials is best explained by
active transport
transpiration pull
imbition theory
mass flow hypothesis
