71.
What is the study of cells called?

72.
Closely stacked flattened sacs (plants only) is called

73.
Which one among the following cell organelles is semi-permeable ?

74.
Any foreign object that gains entry into the cell is immediately engulfed by the ________ and is completely broken into simple digestible pieces.

76.
Biological membranes are composed of

77.
Biological membranes are composed of

78.
They are double membrane structures that are commonly oval or disc shaped.

79.
The cell wall of plants is generally made up of cellulose and is differently structured than that of a

80.
Which cell feature is responsible for making proteins?

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