Explanation:
D Dictyosomes were discovered by Italian } \\
, & \text { cytologist Camillo Golgi in } 1898 \text { for this, he was got } \\
, & \text { nobel prize in } 1906 \text {. } \\
, & \text { Robert Hook:- English botanist (1665) } \\
, & \text { (i) Coined the term cell } \\
, & \text { (ii) Discovered cell wall in cork cell. } \\
, & \text { Robert Brown:- } \\
, & \text { (i) Discovered nucleus }
, \end{aligned}
, (ii) Discovered Brownian movement which is a colloidal property of protoplasm.
, Rudolf Virchow :- Father of modern pathology.
, (i) Gives famous statement about cell "Omnis cellula e cellula".
, (ii) Virchows Triad
, 56. The two cell organelles not enclosed by a membrane are
, (a) chloroplast and mitochondria
, (b) nucleus and nucleolus
, (c) golgi apparatus and microbodies
, (d) none of the above
]#
(a.) Robert Brown
(b.) Rudolf Virchow
(c.) Robert Hooke
(d.) None of these
Ans: d
Exp:
Exp:D Single membrane bound organelle-vacuole, lysosome, golgi apparatus, E.R, micro bodies.
Double membrane bound organelle- nucleus, mitochondria, chloroplast.
Ribosomes, Cytoskeleton, Centrioles (in animal cells), nucleoid, nucleolus are the non-membrane bound cell organelles.