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71. Amoeboid movements and movement of cyclosis is due to_________?

A. Microfilaments
B. Microtubules
C. Intermediate filaments
D. Cytoskeleton

72. Enzymes __________________ the activation energy of a chemical reaction?

A. Increases
B. Decreases
C. Does not effect
D. Increases or decreases depending upon individual enzyme

73. Which one forms the raw material for coenzymes_______________________?

A. Vitamins
B. Carbohydrates
C. Proteins
D. Metals

74. Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by___________?

A. Ribosomes
B. Cytoplasm
C. Golgi apparatus
D. Endoplasmic reticulum

75. Biological molecules (proteins) which catalyze a biochemical reaction and remain unchanged after completion of reaction are called_____________________?

A. Cofactor
B. Coenzymes
C. Activator
D. Enzymes

76. In which of the following location enzymes controlling cellular respiration are present____________?

A. Nucleus
B. Chlorophast
C. Milochondria
D. Ribosome

77. In golgi apparatus the maturing face is____________?

A. Biconcave
B. Convex
C. Spherical
D. Concave

78. A cofactor made of inorganic ion which is detachable is called__________________?

A. Prosthetic group
B. Coenzyme
C. Activator
D. Cofactor

79. An activated enzyme consisting of polypeptide chain and a cofactor is called_______________?

A. Apoenzyme
B. Holoenzyme
C. Activated enzyme
D. Both b and c

80. Centrioles are composed of ________ triplets of microtubules.

A. 3
B. 9
C. 10
D. 15