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    *Important science facts*

    Β 

    1) Red color of carrot and tomato is due to:

    ✍ anthocyanin 

    2) P.H of human blood isΒ 

    ✍ 7.0 

    3) Largest organ inside human body is:

    ✍ Liver 

    4) Largest organ of human body is:

    ✍ skin

    5) What is celluloses:

    ✍ Carbohydrates

    6) The smallest of all human cells are:

    ✍ RBCs

    7) No of bones in human body is:

    ✍ 206

    8) Smallest unit of life is:

    ✍ Cell

    9) Red blood cells have no:

    ✍ Nucleus

    10) White blood cells are also known as:

    ✍ Leucocytes

    11) Red blood cells are also known as:

    ✍ Erythrocytes

    12) Life appeared on earth about:

    ✍ 3 billion years ago

    13) When earth was formed its atomsphere were composed of:

    ✍ Water vapour, ammonia and Methane

    14) Biochemical organ of life is discovered by:

    ✍ Oparin

    15) Group of cells are termed as:

    ✍ Tissue

    16) Kingdom fungi are known as:

    ✍ Decomposer

    17) Which cell organelles not participate in cell division:

    ✍ Ribosomes

    18) Longest bone in human body is:

    ✍ Femur

    19) Shortest bone in human body is:

    ✍ Stapes

    20) Most important food is derived from:

    ✍ Fruits

    21) After human most intelligent mammal is:

    ✍ Dolphins

    22) Prokaryot doesn't possess:

    ✍ Nucleus

    23) Eukaryot has a:

    ✍ Nucleus

    24) In bacterial cell..............is not found:

    ✍ Golgi apparatus

    25) ................Is found in plant cell while in animal cell it is absent.

    ✍ Cell wall

    26) Jelly like structure found inside the cell are reffered as.

    ✍ Cytoplasm

    27) Which part of cell makes proteins:

    ✍ Ribosomes

    28) Most important stimulant in tea leaves:

    ✍ Caffeine

    29) First cloned sheep was discovered by:

    ✍ Dolly

    Β 

    30) Which part of cells process packages and export proteins.

    ✍ Golgi apparatus

    31) Colored part of eye is called

    ✍ Iris

    32) Tubes that carry away blood from heart is called:

    ✍ Arteries

    33) Tiny bumps on tongue is called is:

    ✍ Taste buds

    34) Black part of eye is termed as:

    ✍ Pupil

    35) .............Tubes carry blood towards heart

    ✍ Veins

    36) Chromosomes consists of:

    ✍ DNA and Proteins

    37) Poison of honey bee is:

    ✍ Acidic

    38) Apple is rich in:

    ✍ Iron

    39) Longest nerve is

    ✍ Sciatic

    40) Evaporation of sweat is:

    ✍ Endothermic reaction

    41) Palak leaves are rich in:

    ✍ Iron

    42) Loss of memory is caused by destruction of:

    ✍ Cerebrum

    43) Average pulse rate is:

    ✍ 72-80

    44) Milk sugar is:

    ✍ Lactose

    45) No of cells in human body is:

    ✍ 75 trillion

    46) Plants roots absorb water through hair roots by process of:

    ✍ Osmosis

    47) Wisdom teeth normally grow between age of:

    ✍ 17-26 years

    48) Saliva helps in digestion of:

    ✍ Starch

    49) Average weight of female brains are:

    ✍ 310 grams

    50) Function of homoglobin is to transport:

    ✍ Oxygen

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