IMP BIOLOGY QUESTION FOR ALL COMPETITIVE EXAM
Q1) The process by which water vapor in the air is changed into liquid water is
A) Deposition
B) Condensation
C) Evaporation
D) Transpiration
CORRECT ANSWER IS B) Condensation
Q2) Where is the Bhabha Atomic Research Center situated?
A) Mumbai
B) Thane
C) Pune
D) Nashik
CORRECT ANSWER IS A) Mumbai
Q3) Over irrigation is responsible for
A) land degradation
B) decrease salinity in the soil
C) water pollution
D) decrease alkalinity in the soil
CORRECT ANSWER IS A) land degradation
Q4) Select the type of the phylum of the soft bodied animals and the rasping organ for feeding in their body respectively.
A) Annelida, Radula
B) Mollusca, Radula
C) Arthropods, Tube feet
D) Mollusca, Malpighian tubules
CORRECT ANSWER IS B) Mollusca, Radula
Q5) Biomagnification
A) refers to an increase in the concentration of toxins at successive trophic levels of the food chain
B) refers to use microorganisms to degrade organic contaminants in soil, groundwater, sludge, and solids
C) refers to process by which organic substances are decomposed by micro-organisms
D) refers to an increase in the concentration of beneficial substances at successive trophic levels of the food chain
CORRECT ANSWER IS A) refers to an increase in the concentration of toxins at successive trophic levels of the food chain
Q6) Every particle of soil holds some imbibed water in it, this water is hold up in the soil particle with such a great imbibition force that it cannot be separated form it for the use of the plant. This is called
A) free water
B) capillary water
C) gravitational water
D) hygroscopic water
CORRECT ANSWER IS D) hygroscopic water
Q7) Which of the following cell organelles are involved in the formation of lysosomes?
A) Golgi apparatus
B) Ribosomes
C) Nucleus
D) Peroxisomes
CORRECT ANSWER IS A) Golgi apparatus
Q8) Sometimes hawks feed on the snakes and frogs thus occupying which level in the food chain?
A) Primary consumer
B) Decomposer
C) Tertiary consumer
D) Primary producer
CORRECT ANSWER IS C) Tertiary consumer
Q9) The element plays an important role in opening and closing of stomata is
A) Phosphorus
B) Potassium
C) Magnesium
D) Boron
CORRECT ANSWER IS B) Potassium
Q10) Which of the following types of cell usually lacks mitochondria?
A) Human nerve cell
B) Mature human erythrocyte
C) Human liver cell
D) Frog liver hepatocyte
CORRECT ANSWER IS B) Mature human erythrocyte
Q11) As per the binomial nomenclature the scientific name of Wheat is:
A) Canis familiaris
B) Triticum aestivum
C) Musca domestica
D) Ocimum sanctum
CORRECT ANSWER IS B) Triticum aestivum
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