Cell - The Basic Unit of Life (Practice Questions)

1.    Plants differ from animals in that plants have :
    (a)    an endoplasmic reticulum
    (b)    a central vacuole
    (c)    golgi complexes
    (d)    vesicles
Ans. (b)
2.    What is the substance that is used by the cells as an immediate source of energy for them?
    (a)    Adenosine triphosphate (ATP)
    (b)    Amino acids
    (c)    Chlorofluorocarbons
    (d)    Phenylalanine
Ans. (a)
3.    Which of the following is not an organelle?
    (a)    Lung   
    (b)    Endoplasmic reticulum
    (c)    Chloroplast       
    (d)    Mitochondria
Ans. (a)
4.    Rigidity of cell wall is due to :
    (a)    lignin   
    (b)    suberin
    (c)    cutin   
    (d)    pectin
Ans. (a)
5.    The smooth ER is especially abundant in cells that synthesize extensive amounts of :
    (a)    lipids   
    (b)    toxins
    (c)    proteins  
    (d)    nucleic acids
Ans. (a)