Que- Virus is__________?
a. unicellular
b. multicellular
c. acellular
d. none of these
Answer- acellular
Que- Term the time during which an orgnism is present in the body before causing disease ?
a. Rest period
b. Incubation period
c. Sleeping period
d. Inclubation time
Answer- Incubation period
Que- Insects responsible for transmitting diseases are called___________?
a. Drones
b. Vectors
c. Hybirds
d. None of these
Answer- Vectors
Que- Out of proteins, lipids and carbohydrates present in a cell membrane, what is true?
a. Lipids are maximum
b. Carbohydrates are minimum
c. Carbohydrates are maximum
d. All three are in equal proportion
Answer- Carbohydrates are minimum
Que- Potato is a modified form (outgrowth) of:
a. root
b. stem
c. fruit
d. leaf
Answer- stem
Que- Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?
a. Order
b. Subspecies
c. Class
d. Genus
Answer- Class
Que- Prothrombin which helps in clotting of blood is released by
a. lymphocytes
b. erythrocytes
c. monocytes
d. blood platelets
Answer- blood platelets
Que- Myopia is connected with
a. ears
b. eyes
c. lungs
d. None of these
Answer- eyes
Que- Organic Substances which, in very small amounts, control growth and development called
a. vitamins
b. hormones
c. enzymes
d. None of the above
Answer- hormones
Que- Our major foods, fibres, spices, fruits and beverage crops are
a. flowering plants
b. gymnosperms plants
c. pteridophytes
d. bryophytes
Answer- flowering plants
Que- Movements due to light are shown by
a. flowering plants
b. lower plants
c. all land plants
d. all the plants
Answer- flowering plants
Que- Outer covering of virus made up of protein is
a. capsid
b. coat
c. virion
d. viriod
Answer- capsid
Que- Radish is a
a. bulb
b. conn
c. modified root
d. tuber
Answer- modified root
Que- Movement of cell against concentration gradient is called
a. osmosis
b. active transport
c. diffusion
d. passive transport
Answer- active transport
Que- Photosynthesis generally takes place in which parts of the plant?
a. Leaf and other chloroplast bearing parts
b. steam and leaf
c. Roots and chloroplast bearing parts
d. Bark and leaf
Answer- Leaf and other chloroplast bearing parts
Que- Most fish do not sink in water because of the presence of:I. swim bladderII. air bladderIII. air sacsIV. air in spongy bones
a. I and II are correct
b. II and III are correct
c. III and IV are correct
d. I, II, III and IV are correct
Answer- I and II are correct
Que- Plants synthesis protein from
a. starch
b. sugar
c. amino acids
d. fatty acids
Answer- amino acids
Que- Plants are killed in winter by frost
a. because of desiccation and mechanical damage to the tissues
b. because no photosynthesis takes place at such low temperature
c. because respiration ceases at such low temperature
d. because there is no transpiration
Answer- because of desiccation and mechanical damage to the tissues
Que- One of the following is most suitable for study of mutations
a. Haploids
b. Diploids
c. Tetraploids
d. Polyploid
Answer- Haploids
Que- Pulses are a good source of
a. carbohydrates
b. fats
c. proteins
d. vitamins
Answer- proteins
Que- Oxygen in our blood is transported by a protein named
a. haemoglobin
b. keratin
c. collagen
d. myoglobin
Answer- haemoglobin
Que- Nymph is the name of young one of
a. butterfly
b. beetle
c. housefly
d. cockroach
Answer- cockroach
Que- Primary phloem develops from
a. lateral meristem
b. protoderm
c. extrastelar cambium
d. provascular tissue
Answer- provascular tissue
Que- Other than spreading malaria, anopheles mosquitoes are also vectors of
a. dengue fever
b. filariasis
c. encephalitis
d. yellow fever
Answer- filariasis
Que- Plants that grow in saline water are called
a. halophytes
b. hydrophytes
c. mesophytes
d. thallophytes
Answer- halophytes
Que- Pyorrhoea is a disease of the
a. nose
b. gums
c. heart
d. lungs
Answer- gums
Que- O2 released in the process of photosynthesis comes from
a. CO2
b. water
c. sugar
d. pyruvic acid
Answer- water
Que- Placenta is the structure formed
a. by the union of foetal and uterine tissue
b. by foetus only
c. by fusion of germ layers
d. None of these
Answer- by the union of foetal and uterine tissue
Que- Plants hormone that induces cell division is
a. auxins
b. gibberellins
c. kinins
d. domins
Answer- gibberellins
Que- Neurospora is used as genetic material because
a. it has short life cycle of 10 days
b. the product of single meiosis can be easily analysed
c. meiotic products are linearly arranged in the form of ordered tetrads
d. is a diploid fungus
Answer- it has short life cycle of 10 days
Que- Phloem is a tissue found in
a. reproductive organs of animals
b. plants
c. insects
d. mammals
Answer- plants
Que- N2 content is kept constant in the biosphere due to
a. N2 fixation
b. industrial pollution
c. nitrogen cycle
d. absorption of N2
Answer- nitrogen cycle
Que- Most common disease of poultry in India is
a. fowl pox
b. tick fever
c. ranikhet
d. coryza
Answer- ranikhet
Que- Most abundant tissues of our body are
a. muscular
b. connective
c. epithelial
d. nervous
Answer- muscular
Que- Mumps is a disease caused by
a. fungus
b. bacterium
c. virus
d. None of these
Answer- virus
Que- Rain water helps to increase the ____ to some extent.
a. phosphorous contents
b. nitrogen contents
c. calcium contents
d. potash contents
Answer- calcium contents
Que- Number of chromosomes in down's syndrome is
a. 46
b. 47
c. 48
d. 49
Answer- 47
Que- Plant bends towards the source of light on account of the movement of curvature known as
a. geotropism
b. thigmotropism
c. chemotropism
d. phototropism
Answer- phototropism
Que- Plant have ____ while animals lack it.
a. starch
b. cellulose
c. protein
d. fat
Answer- cellulose
Que- Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?
a. Exact concentration of solution is not given
b. Character of semi permeable membrane is not given
c. The flow of solution is not possible through semi permeable membrane
d. All are incorrect
Answer- The flow of solution is not possible through semi permeable membrane
Que- Photosynthesis is a process
a. reductive and exergonic
b. reductive and catabolic
c. reductive, endergonic and catabolic
d. reductive, endergonic and anabolic
Answer- reductive, endergonic and anabolic
Que- On which of the following plants did Gregor Mendal perform his classical experiment?
a. Gram
b. Maize
c. Pea
d. Wheat
Answer- Pea
Que- Pigmentation of skin is due to
a. lymphocytes
b. monocytes
c. leucocytes
d. melanocytes
Answer- melanocytes
Que- Norepinephrine increases
a. respiration
b. urine production
c. saliva production
d. blood pressure
Answer- blood pressure
Que- Night blindness is cause by lack of which vitamin?
a. Vitamin A
b. Vitamin B
c. Vitamin C
d. Vitamin D
Answer- Vitamin A
Que- Monocot root differs from dicot root in having
a. open vascular bundles
b. scattered vascular bundles
c. well developed pith
d. radially arranged vascular bundles
Answer- well developed pith
Que- Radioactivity is a phenomenon of the spontaneous emission of
a. protons (alpha particles)
b. electrons (beta particles)
c. gamma rays (short wave electromagnetic waves)
d. All of the above
Answer- All of the above
Que- Most of the red, blue and purple colours of plants are due to a pigment called
a. anthocyanin
b. carotene
c. chlorophyll
d. xanthophylls
Answer- anthocyanin
Que- Plants developing in dry conditions are
a. xerophytes
b. mesophytes
c. lithophytes
d. hydrophytes
Answer- xerophytes
Que- Plants growing on sand are called as
a. chasmophytes
b. oxylophytes
c. lithophytes
d. psammophytes
Answer- psammophytes
Que- Our skin, when exposed to excess sunlight, becomes dark. This is because of our skin pigments called
a. flavoxanthin
b. melanin
c. carotene
d. Xanthophyll
Answer- melanin
Que- Ramapithecus and Cro-Magnon man are considered
a. ancestors of modern man
b. ancestors of monkey
c. ancestors of lion
d. None of the above
Answer- ancestors of modern man
Que- The main function of Henle's loop is
a. Passage of urine
b. Filtration of blood
c. Formation of urine
d. Conservation of water
Answer- Conservation of water
Que- The ultimate cause of water movement in a plant stem against gravity is
a. Osmosis
b. Photosynthesis
c. Transpiration
d. Diffusion
Answer- Transpiration
Que- They protect plants from water loss and abrasive damage.
a. Leaves
b. Waxes
c. Minerals
d. None of the above
Answer- Waxes
Que- Th suitable conditions in which the rate of evaporation occurs more fastly are
a. Low speed of wind
b. High humidity
c. Low humidity and high temperature
d. Excess amount of water in the soil
Answer- Low humidity and high temperature
Que- The device to measure transpiration in plants is
a. Hygrometer
b. Crescometer
c. Potometer
d. Clinometer
Answer- Potometer
Que- Longest bone found in man
a. Stapes
b. Fibula
c. Tibia
d. Femur
Answer- Femur
Que- The female sex organs in a flower is the ________ .
a. Zoospores
b. Stamen
c. Pistil
d. Chlorophyceae
Answer- Pistil
Que- The male sex organs in a flower is the ________ .
a. Zoospores
b. Stamen
c. Pistil
d. Chlorophyceae
Answer- Stamen
Que- Which part of flower produces pollen grains that are generally yellowish in color?
a. Sepals
b. Petals
c. Stamens
d. Carpels
Answer- Stamens
Que- Which one of the following is the longest flower in the world?
a. Lotus
b. Sunflower
c. Rafflesia
d. Glory Lily
Answer- Rafflesia
Que- Usually the conspicuous ,coloured ,attractive part of flower is termed is
a. Sepals
b. Carpels
c. Petals
d. Stamens
Answer- Petals
Que- The phenomenon of summer sleep by animals is called
a. Hibernation
b. Aestivation
c. Laziness
d. Lethargy
Answer- Aestivation
Que- Animals who have constant body temperature are
a. Homeothermic
b. Hemothermic
c. Hematology
d. Histology
Answer- Homeothermic
Que- Which type of cell, skin is made up of:
a. Epidermal cells
b. Connective tissue
c. Permanent tissues
d. Parenchyma
Answer- Epidermal cells
Que- Cold blooded animals are known as
a. Homiotherms
b. Eurytherms
c. Endotherms
d. Poikilotherms
Answer- Poikilotherms
Que- Ginger is a stem and not a root because
a. It stores food
b. It lacks chlorophyll
c. It has nodes and internodes
d. None of the above
Answer- It has nodes and internodes
Que- Blood group which have no antibodies
a. A
b. B
c. AB
d. O
Answer- AB
Que- The sound lub-dub lub-dub is produced by
a. Liver
b. Kidney
c. Heart
d. Lung
Answer- Heart
Que- Blood is red in colour due to the presence of ________
a. Cytochrome
b. Chlorophyll
c. Hemocyanin
d. Haemoglobin
Answer- Haemoglobin
Que- Jellyfish belongs to which phylum
a. Porifera
b. Cnidaria
c. Nematoda
d. Mollusca
Answer- Cnidaria
Que- Which group of animals was the first to evolve to fly
a. Reptiles
b. Mammals
c. Insects
d. Birds
Answer- Insects
Que- The skeleton secreting cells in poriferans are known as
a. Scleroblasts
b. Collenocytes
c. Archaeocytes
d. Pinacocytes
Answer- Scleroblasts
Que- Which one is the basic unit of classification
a. Division
b. Family
c. Class
d. Species
Answer- Species
Que- Which one of the following phylum is characterised by absence of true coelom
a. Nematoda
b. Echinodermata
c. Mollusca
d. Annelida
Answer- Nematoda
Que- The food material prepared in the plants is transported to the various organs by which of the following?
a. Xylem
b. Phloem
c. Cortex
d. Cambium
Answer- Phloem
Que- Cells with similar markers stick together and function as
a. Organs
b. Tissues
c. Systems
d. Organisms
Answer- Tissues
Que- Xylem tissue is mainly concered with the
a. Photosynthesis of plants
b. Transport of water and mineral nutrients in plants
c. Storage of prepared foods in plants
d. Transport of enzymes in plants
Answer- Storage of prepared foods in plants
Que- The major constituent of connective tissue is
a. Lipid
b. Carbohydrate
c. Cholesterol
d. Collagen
Answer- Collagen
Que- The connective tissue that connects a muscle to a bone is
a. Cartilage
b. Ligament
c. Tendon
d. Interstitial fluid
Answer- Tendon
Que- Which vitamin is necessary for blood clotting
a. Vitamin A
b. Vitamin C
c. Vitamin K
d. Vitamin D
Answer- Vitamin K
Que- Most of the enzymes are
a. Fats
b. Carbohydrates
c. Proteins
d. Minerals
Answer- Proteins
Que- The disease Rickets is caused by the deficiency of
a. Vitamin A
b. Vitamin B
c. Vitamin C
d. Vitamin D
Answer- Vitamin D
Que- Which vitamin is also act as coenzymes
a. K
b. E
c. B12
d. None of the Above
Answer- B12
Que- Amoeba is ________ in nutrition
a. Holozoic
b. Holophytic
c. Saprozoic
d. Myxotrophic
Answer- Holozoic
Que- During which phase or phase of cell division,the morphology of the chromosomes is best studies?
a. Telophase,anaphase
b. Prohase,anaphase
c. Anaphase,metaphase
d. None of the above
Answer- Anaphase,metaphase
Que- Metaphase is followed by the next phase of mitosis called
a. Anaphase
b. Prophase
c. Interphase
d. Anaphase
Answer- Anaphase
Que- It is a the process which converts a single celled zygote into a great number of cells,which then differentiate into tissues.
a. Mitosis
b. Meiosis
c. Fractionation
d. Regenration
Answer- Mitosis
Que- Which division is responsible for the continuity of hereditary informations?
a. Mitosis
b. Meiosis
c. Regeneration
d. All of the above
Answer- Mitosis
Que- The type of division which occurs in somatic cells is known as
a. Mitosis
b. Meiosis
c. Binary Fission
d. Regeration
Answer- Mitosis
Que- Which of the following organelles contain enzymes that have digestive action
a. Plastids
b. Lysosomes
c. Ribosomes
d. Polysomes
Answer- Lysosomes
Que- They are also concerned with the formation and storage of certain compounds secreted by the cell.
a. Lysosomes
b. Golgi Bodies
c. Centriole
d. None of the above
Answer- Golgi Bodies
Que- The total number of pairs of Peripheral nerves in man are
a. 41
b. 42
c. 43
d. 44
Answer- 43
Que- Medulla oblongata is a part of which of the following?
a. Heart
b. Brain
c. Lungs
d. Stomach
Answer- Brain
Que- Acetylcholine is
a. Toxin
b. Vitamin
c. Enzyme
d. Chemical transmitter
Answer- Chemical transmitter
Que- The pair of spinal nerves in main are
a. 30
b. 31
c. 32
d. 33
Answer- 31
Que- When the diaphragm and external intercostal muscles contract,
a. The volume of the thorax decreases
b. The volume of the lungs decreases
c. The volume of the thorax increases
d. The lungs shrink
Answer- The volume of the thorax increases
Que- Blood leaving lung, is rich in
a. Oxygen
b. Carbondioxide
c. Haemoglobin
d. Number of RBC
Answer- Oxygen
Que- The organs protected by the thoracic cage include the
a. Lungs
b. Heart
c. Both a & b
d. None of the above
Answer- Both a & b