BIOLOGY MCQ CAPSULE 1. 1) The ph value of human blood is? a) 7.40 b) 7.20 c) 0 d) 8.60

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1 1) The ph value of human blood is? a) 7.40 b) 7.20 c) 0 d) ) 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

2 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) 1,300 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 ) The largest organ in the human body is. a) Gland b) Bone c) Skin d) Liver

3 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

4 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

5 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) Part of eye used during eye donation is a) Retina b) Cornea c) Eye hens c) Complete eye 32. Amount of light entering into the eye is controlled by a) Cornea b) Choroid c) Retina d) Pupil 33. Image of object is formed on which part of eye a) Cornea b) Choroid c) Retina d) Iris 34. In the retina of eye cells present for colour differentiation a) Cones b) Rods c) Cornea d) Choroid 35. 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 BIOLOGY MCQ CAPSULE 1

6 36. 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 37. Thickest layer of skin is found on a) Sole b) Palm c) Thigh d) Head 38. Muscles cramps occur after heavy exercise this is because accumulation of a) Amino acids b) Fatty acids c) Carbon dioxide d) Lactic acid 39. Upper most layer of skin is called a) Epidermis b) Protodermis c) Dermis d) None of these 40. The hardest part of human body is a) Bone b) Palaque c) Enamel d) Skull 41. Which one of the following organ have the capacity of regeneration a) Spleen b) Kidney c) Brain d) Liver 42. Which of the following organ cannot be transplanted a) Kidney b) Heart c) Lung d) Brain

7 43. Which of the following is a vestigeal organ? a) Diaphram b) Centriole c) Apendix d) Molar teeth 44. Tear of man have an enzyme which kill the bacteria a) Amylase b) Urease c) Lysozyme d) Ptylin 45. Weight of an animal body is mostly the weight of a) Water b) Blood c) Bone d) Tissue 46. The number of essential amino acid found in mana) 15 b) 20 c) 30 d) Myoglobin contain the metal a) Copper b) Silver c) Gold d) Iron 48. Normal temperature of human body is a) 40.5 degree Celsius b) 37.0 degree Celsius c) 9834 degree Celsius d) 82.4 degree Celsius 49. Blood bank of human body is a) Spleen b) Pancrease c) Gall bladder d) None of these

8 50. Bile is stored in a) Mouth b) Liver c) Gall bladder d) Stomach

FOOD. Why do we need food? What's in our food? There are 3 trace elements, Iron (Fe), Copper (Cu) and Zinc (Zn).

FOOD. Why do we need food? What's in our food? There are 3 trace elements, Iron (Fe), Copper (Cu) and Zinc (Zn). Why do we need food? FOOD 1. As a source of energy keeps our cells and us alive. 2. To make chemicals for our metabolic reactions. 3. As raw materials for growth and repair of our cells and body. What's