Among the biotic components of the ecosystem, the producer system is
1.carnivores
2.herbivores
3.plants
4.animals
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Animal lacks
1.starch
2.cellulose
3.protein
4.lipids
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Bacteria are
1.eukaryotes
2.prokaryotes
3.non-living
4.none of these
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Bile juice is secreted by
1.pancreas
2.stomach
3.intestine
4.gall bladder
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Breeding and management of bees is known
1.agriculture
2.sericulture
3.horticulture
4.apiculture
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DNA structure was first described by
1.Pasteur
2.Robert Koch
3.Robert Koch
4.Carlous Linnaues
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Fructose is
1.pentose sugar
2.hexose sugar
3.heptose sugar
4.none of these
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Hepatitis is inflammation of
1.stomach
2.kidney
3.lungs
4.liver
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Highly intelligent mammals are
1.rat
2.bat
3.dolphin
4.elephant
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Malaria is caused by
1.mosquito
2.plasmodium
3.virus
4.bacteria
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Movement of cell against concentration gradient is called
1.active transport
2.osmosis
3.diffusion
4.both b and c
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Nucleic acid were first isolated by
1.Erwin Chargaff
2.Friedrich Miescher
3.Rosalind Franklin
4.none of these
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On which of the following plants did Gregor Mendal perform his classical experiment
1.corn
2.mustard
3.pea
4.sunflower
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One of the following is not a function of bones
1.support
2.production of blood cells
3.protein synthesis
4.muscle attachment
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One of the following is not pyrimidine
1.thymine
2.cytosine
3.guanine
4.uracil
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Oxygen released in the process of photosynthesis comes from
1.water
2.oxygen
3.carbon dioxide
4.nitrogen dioxide
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Penicillin is obtained from
1.soil
2.bacteria
3.fungi
4.virus
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Peptide bond is a
1.C-N link
2.N-H link
3.C-O link
4.N-O link
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Phloem tissue is found in
1.liver
2.placenta
3.plants
4.none of these
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Plant bends towards the source of light on account of the movement known as
1.geotropism
2.hydrotropism
3.chemotropism
4.phototropism
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Plants absorb most part of water needed by them through their
1.stem
2.root hairs
3.leaf
4.bark
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Plants that grow in dry habitat are called
1.hydrophytes
2.xerophytes
3.shrubs
4.herbs
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Plaster of Paris can be produced by heating
1.Graphite
2.Gypsum
3.Zinc
4.Lead
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Pollination is best defined as
1.germination of pollen grains
2.transfer of pollen from anther to stigma
3.formation of pollen grains
4.none of these
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Process of cell division take place by
1.mitosis
2.fertilization
3.reproduction
4.none of these
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Prokaryotic cell lack
1.nucleolus
2.nuclear membrane
3.both a and b
4.none of these
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Pulses are a good source of
1.proteins
2.carbohydrates
3.vitamins
4.minerals
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Study of fossils is called
1.psychology
2.paleontology
3.biodiversity
4.haematology
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The brain is enclosed in a bony case called
1.diaphragam
2.vertebral column
3.cranium
4.vertebrae
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The Nobel prize in physics for the discovery of the law of photoelectric effect was awarded to
1.Newton
2.Einstein
3.Rontgen
4.Rutherford
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The non-protein part of enzyme is called
1.co-enzyme
2.activator
3.cofactor
4.substrate
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The organisms that can make their own food are called
1.producers
2.consumers
3.secondary consumers
4.decomposers
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The scientific name of human is
1.Homo sapiens
2.Homo habiscus
3.Oriza sativa
4.none of these
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The smallest bacteria on earth is
1.mycoplasma
2.E.coli
3.salmonella
4.clostridium
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The structure that is absent in animal cell
1.cell wall
2.nulcleus
3.centriole
4.mitochondria
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The symbol of gold is
1.Au
2.Ag
3.Fe
4.Sg
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Thread like structures in fungi are called
1.mycelium
2.hyphae
3.sporangium
4.spores
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Vaccine for rabies was developed by
1.Robert Koch
2.Robert Brown
3.Pasteur
4.none of these
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Which from the following is NOT true about Helium gas?
1.Colourless
2.Odorless
3.Tasteless
4.Toxic
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Which is an example of fungi
1.paramecium
2.euglena
3.penicillium
4.octopus
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Which is called power house of the cell
1.golgi complex
2.mitochondria
3.nucleus
4.endoplasmic reticulum
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Which is the bone that is present in forelimb
1.radius
2.femur
3.ribs
4.sternum
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Which is the largest excretory organ of the body
1.lungs
2.skin
3.liver
4.none of these
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Which one is endoparasite?
1.lice
2.ticks
3.virus
4.tape worm
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Which one is herbivore
1.cat
2.dog
3.cow
4.lion
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Which part of the blood cells provide immunity
1.RBC
2.WBC
3.platelet
4.blood plasma
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Which statement is correct about enzymes?
1.protein in nature
2.speed up reaction
3.denature at high temperature
4.all of these
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Which structure helps in transport of water in plants
1.phloem
2.leaf
3.bark
4.xylem
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Which structure prevent water loss in plants
1.cuticle
2.bark
3.mesophyll
4.leaf
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X-rays were discovered by
1.Otto Hahn
2.Edwin Hubble
3.Wilhelm Rontgen
4.Ernest Rutherford
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