Daily Updates Mock Test 64

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Daily Updates Mock Test 64

MOCK TEST 64 SYLLABUS : BIOLOGY TIME : 20 MINUTES FULL MARKS : 50*5 = 250 EACH QUESTION CARRIES 5 MARKS , -VE MARKING = - 1 / WRONG ANSWER আজকের মোক টেস্ট নেওয়া হবে রাত 9. 30 PM থেকে , এই মোক টেস্ট দেওয়া যাবে কাল সকাল 11টা পর্যন্ত OUR FACEBOOK GROUP : DAILY UPDATES CLICK HERE TO JOIN OUR FACEBOOK PAGE : STUDY MATERIALS FOR ALL CLICK HERE TO FOLLOW OUR TELEGRAM CHANNEL LINK : STUDY MATERIALS FOR ALL CLICK HERE TO FOLLOW PSC GUIDE BOOK FOR (MVI,WORKS ACNTNT,FOOD SI) CLICK HERE TO DOWNLOAD PSC S


Questions and Answers
  • 1. 
    The ph value of human blood is__?
    • A. 

      7.4

    • B. 

      7.2

    • C. 

      0

    • D. 

      8.6

  • 2. 
    The rarest blood group is __. 
    • A. 

      O negative

    • B. 

      B negative

    • C. 

      AB positive

    • D. 

      AB negative

  • 3. 
    The metal present in the haemoglobin is __ . 
    • A. 

      Copper

    • B. 

      Calcium

    • C. 

      Iron

    • D. 

      Aluminium

  • 4. 
    Age of fishes was known as __. 
    • A. 

      Devonian

    • B. 

      Ordovician

    • C. 

      Crustaceous

    • D. 

      Silurian

  • 5. 
    The metal present in the chlorophyll is __. 
    • A. 

      Calcium

    • B. 

      Aluminium

    • C. 

      Zinc

    • D. 

      Magnesium

  • 6. 
    The important sugar in honey is __.
    • A. 

      Lactose

    • B. 

      Fructose

    • C. 

      Maltose

    • D. 

      Sucrose

  • 7. 
    The number of Chromosomes in the human gene is __.
    • A. 

      23

    • B. 

      48

    • C. 

      46

    • D. 

      24

  • 8. 
    Viticulture is related with __.
    • A. 

      Grapes

    • B. 

      Pine Apple

    • C. 

      Orange

    • D. 

      Strawberry

  • 9. 
    The acid present in Vinegar is
    • A. 

      Citric Acid

    • B. 

      Acetic Acid

    • C. 

      Oxalic Acid

    • D. 

      Malic Acid

  • 10. 
    The longest and largest bone in the human body is __. 
    • A. 

      Spinal Cord

    • B. 

      Humerus

    • C. 

      Fibula

    • D. 

      Femur

  • 11. 
    The average weight of the human brain is __. 
    • A. 

      1,500 grams

    • B. 

      1,200 grams

    • C. 

      1,400 grams

    • D. 

      ,300 grams

  • 12. 
    Which part of human brain is affected by alcohol?
    • A. 

      Cerebrum

    • B. 

      Cerebellum

    • C. 

      Medulla Oblongata

    • D. 

      Corpus Callosum

  • 13. 
    The first heart Transplantation in India was in the Year __. 
    • A. 

      3rd August 1994

    • B. 

      13th August 1994

    • C. 

      3rd September 1994

    • D. 

      13th September 1994

  • 14. 
    The largest organ in the human body is __.
    • A. 

      Gland

    • B. 

      Bone

    • C. 

      Skin

    • D. 

      Liver

  • 15. 
    Which type of lens is used to correct myopia?
    • A. 

      Convex lens

    • B. 

      Concave lens

    • C. 

      Biconcave lens

    • D. 

      Biconvex lens

  • 16. 
     There are several levels of protein structure, the most complex of which is
    • A. 

      primary

    • B. 

      Secondary

    • C. 

      Tertiary

    • D. 

      quaternary

  • 17. 
    Animals store glucose in the form of
    • A. 

      amylose

    • B. 

      Glycogen

    • C. 

      Glycerol

    • D. 

      Guanine

  • 18. 
     The globular shape of a protein is called the
    • A. 

      Primary structure

    • B. 

      Secondary structure

    • C. 

      Tertiary structure

    • D. 

      Quaternary structure

  • 19. 
    What happens during a hydrolysis reaction?
    • A. 

      Protein coils into its secondary structure

    • B. 

      The bond between two subunits of a macromolecule is broken

    • C. 

      Saturated fats become unsaturated

    • D. 

      a bond is formed between two subunits of a macromolecule

  • 20. 
    Molecules that have the same chemical formula but have different molecular structures are called
    • A. 

      Isotopes

    • B. 

      ions

    • C. 

      Structural isotopes

    • D. 

      Isomers

  • 21. 
    Ordinary table salt is sodium chloride. What is baking soda?
    • A. 

      Potassium chloride

    • B. 

      Potassium carbonate

    • C. 

      Potassium hydroxide

    • D. 

      Sodium bicarbonate

  • 22. 
    Movement of cell against concentration gradient is called
    • A. 

      Osmosis

    • B. 

      Active transport

    • C. 

      Diffusion

    • D. 

      Passive transport

  • 23. 
    Plants absorb dissolved nitrates from soil and convert them into
    • A. 

      free nitrogen

    • B. 

      Urea

    • C. 

      Ammonia

    • D. 

      Proteins

  • 24. 
    Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by
    • A. 

      Robert Hooke

    • B. 

      Robert Brown

    • C. 

      Rudolf Virchow

    • D. 

      Theodore Schwann

  • 25. 
    Most of the red, blue and purple colours of plants are due to a pigment called
    • A. 

      Anthocyanin

    • B. 

      Carotene

    • C. 

      Chlorophyll

    • D. 

      Xanthophylls

  • 26. 
    Ptyalin is an enzyme produced in the
    • A. 

      Salivary glands

    • B. 

      Pituitary glands

    • C. 

      Thyroid glands

    • D. 

      Pancreas

  • 27. 
    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

  • 28. 
    Organic Substances which, in very small amounts, control growth and development called
    • A. 

      Vitamins

    • B. 

      . hormones

    • C. 

      Enzymes

    • D. 

      None of the above

  • 29. 
    On which of the following plants did Gregor Mendal perform his classical experiment?
    • A. 

      Gram

    • B. 

      Maize

    • C. 

      Pea

    • D. 

      Wheat

  • 30. 
     Poison glands of snakes are homologous to
    • A. 

      Electric organs of fishes

    • B. 

      stings of rays

    • C. 

      Sebaceous glands of mammals

    • D. 

      Salivary glands of vertebrates

  • 31. 
    In the cell the food (glucose) is broken down into
    • A. 

      Oxygen, water and energy

    • B. 

      Nitrogen and water

    • C. 

      Carbon dioxide, water and energy

    • D. 

      Carbon dioxide only

  • 32. 
    Yeast are used to make wine and beer this is because
    • A. 

      It respire aerobically which breaks down glucose producing alcohol.

    • B. 

      It respire in the absence of oxygen which breaks down glucose into alcohol.

    • C. 

      It produces alcohol without breaking down glucose.

    • D. 

      It is multi celled organism and produces alcohol .

  • 33. 
    Muscles cramps occur after heavy exercise this is because accumulation of
    • A. 

      Amino acids

    • B. 

      Fatty acids

    • C. 

      Carbon dioxide

    • D. 

      Lactic acid

  • 34. 
    During breathing the unwanted particles such as smoke,dust,pollen etc get trapped in
    • A. 

      Trachea

    • B. 

      Pharynx

    • C. 

      Nasal cavity

    • D. 

      Lungs

  • 35. 
    At rest adult person breathes in and out
    • A. 

      19-22 times in a minute

    • B. 

      25-30 times in a minute

    • C. 

      15-18 times in a minute

    • D. 

      30-35 times in a minute

  • 36. 
    Blood transport substances like digested food from
    • A. 

      Small intestine

    • B. 

      Large intestine

    • C. 

      Stomach

    • D. 

      Pancreas

  • 37. 
    Oxygen transports to all parts of the body through haemoglobin. Haemoglobin presents in
    • A. 

      Plasma

    • B. 

      White blood cells

    • C. 

      Platelets

    • D. 

      Red blood cells

  • 38. 
    Consider the following statements (1) Arteries carry carbon dioxide rich blood from the heart to lungs. (2) Veins are the vessels which carry carbon dioxide rich blood  from all parts of the body back to the lungs. (3) Arteries carry oxygen rich blood from heart to all parts of the body. (4) Veins have thick walls. Which of the above statements is correct?
    • A. 

      1 and 2

    • B. 

      2 and 3

    • C. 

      3 and 4

    • D. 

      1 and 4

  • 39. 
    .A resting person usually has a pulse rate between
    • A. 

      65-72

    • B. 

      72-80

    • C. 

      62-75

    • D. 

      72-74

  • 40. 
    Consider the following statements (1) Pulmonary artery carries blood from the heart .It carries carbon dioxide rich blood to the lungs. (2) Pulmonary vein carries oxygen rich blood from the lungs to the heart. Which of the above statement is correct?
    • A. 

      1 only

    • B. 

      2 only

    • C. 

      Both 1 and 2

    • D. 

      Neither 1 nor 2

  • 41. 
    Part of eye used during eye donation is –
    • A. 

      Retina

    • B. 

      Cornea

    • C. 

      Eye hens

    • D. 

      Complet eye

  • 42. 
    Which one do you like?
    • A. 

      Cornea

    • B. 

      Choroid

    • C. 

      Retina

    • D. 

      Iris

  • 43. 
    Image of object is formed on which part of eye –
    • A. 

      Cornea

    • B. 

      Choroid

    • C. 

      Retina

    • D. 

      Iris

  • 44. 
    In the retina of eye cells present for colour differentiation –
    • A. 

      Cones

    • B. 

      Rods

    • C. 

      Cornea

    • D. 

      Choroid

  • 45. 
    Function of Iris is –
    • A. 

      Formation of image

    • B. 

      Protection of eye lens

    • C. 

      To regulate the size of pupil

    • D. 

      To make the image in inverted condition

  • 46. 
    Colour of skin depend on –
    • A. 

      Enzyme

    • B. 

      Harmones

    • C. 

      Epidermis

    • D. 

      Melanin

  • 47. 
    Thickest layer of skin is found on –
    • A. 

      Sole

    • B. 

      Palm

    • C. 

      Thigh

    • D. 

      Head

  • 48. 
      Largest organ of human body is –
    • A. 

      Brain

    • B. 

      Heart

    • C. 

      Skin

    • D. 

      Liver

  • 49. 
    Upper most layer of skin is called –
    • A. 

      Epidermis

    • B. 

      Protodermis

    • C. 

      Dermis

    • D. 

      None of these

  • 50. 
     The hardest part of human body is –
    • A. 

      Bone

    • B. 

      Palaque

    • C. 

      Enamel

    • D. 

      Skull