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Herbicide that blocks electrons transport from PS-II to PS-I by inhibiting electron flow between plastoquinone → Cytochrome is
DCMU
Paraquat
DCPIP
None of these
A.
DCMU
DCMU is a selective herbicide that acts as a potent inhibitor of PS-II. Paraquat inhibits PS-I by producing superoxides.
DCPIP is a dye used to measure the rate of photosynthesis.
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Statement I Microtubules are formed only in animal cells.
Statement II Microtubules are made up of a protein called myosin.
Choose the correct option
Statement I is correct and statement II is incorrect.
Statement II is correct and statement I is incorrect.
Both statement are correct
Both statements are incorrect
D.
Both statements are incorrect
Microtubules are found in both animal and plant cells and are formed of the protein tubulin.
Some functions of the nutrient element are given below
The concerned nutrient is
Cu
Fe
Ca
Mo
B.
Fe
Iron (Fe) is the concerned nutrient associated with the above-given functions.
Torsion of visceral mass is seen in animals belonging to the class
Cephalopoda
Scaphopoda
Amphineura
Gastropoda
D.
Gastropoda
Animals of class-Gastropoda of phylum-Mollusca undergo twisting of torsion of the visceral mass during development, leading to the conversion of the symmetrical embryo into an asymmetrical adult.
A plant is provided with the ideal conditions for photosynthesis and supplied with isotope 14 CO2. When the products of the process are analysed carefully, what would be the nature of products?
Glucose and oxygen are labelled
Oxygen is labelled, but glucose is normal
Glucose and oxygen are normal
Glucose is labelled, but oxygen is normal
D.
Glucose is labelled, but oxygen is normal
In the process of photosynthesis
Plants manufacture glucose from H2O and CO2 and oxygen gas is released. So, due to the isotopic carbon of CO2, only glucose will be labelled, but oxygen will be normal.
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Mock Test Series
