Microtubules are absent in

(1) mitochondria

(2) flagella

(3) spindle fibres

(4) centriole

Subtopic:  Cytoskeleton |
 77%
From NCERT
AIIMS - 2010
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Which of the following four cell structures is correctly matched with the accompanying description?

(1) Plasma membrane - Outer layer of cellulose or chitin, or absent

(2) Mitochondria - Bacteria like elements with inner membrane forming sacs containing chlorophyll, found in plant cells and algae

(3) Chloroplasts - Bacteria like elements with inner membrane highly folded

(4) Golgi apparatus - Stacks of flattened vesicles

Subtopic:  Eukaryotic Cell Orgenelle |
 73%
From NCERT
AIIMS - 2009
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Which one of the following is incorrect statement

(1) All organisms are composed of cells

(2) Cell is the basic unit of life

(3) All inanimate things are made up of cells

(4) Virus is acellular

Subtopic:  Cell Theory |
 83%
From NCERT
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Which one of the following is incorrect statement

(1) Organisms composed of single cell are unicellular

(2) Organisms composed of many cells are multicellular

(3) Organisms which are not composed of any cell are acellular

(4) Organisms which are composed of single cell is acellular

Subtopic:  Cell Theory |
 87%
From NCERT
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Which of the following is true

(1)cell is the basic unit of life

(2)cell is present in all living organisms

(3)cell is the basic unit of body of organism

(4)All of these

Subtopic:  Cell Theory |
 95%
From NCERT
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Which of the following is true about unicellular organism ?

(1)anything less than a complete structure of a cell does not ensure independent living

(2)it is capable of independent existence

(3)cell is structural and functional unit

(4)All of the above

Subtopic:  Cell Theory |
 90%
From NCERT
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With the discovery of which of the following, the study of the structural details was made possible

(1)compound microscope

(2)electron microscope

(3)cryo-electron microscope

(4)Fluorescent microscope

Subtopic:  Cell Theory |
 92%
From NCERT
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Which of the following is true about Robert Hooke?

(1)He saw first cell

(2)He saw first dead cell

(3)He saw first cell wall

(4)All of the above

Subtopic:  Cell Theory |
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Which one is true about Schleiden

(1)He proposed that body of a plant is made up of cells and their products

(2)He was a botanist

(3)He couldn’t explain the formation of the new cells

(4)All of the above

Subtopic:  Cell Theory |
 88%
From NCERT
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Cell theory’s earlier proposed by Schleiden and Schwann  failed to explain

(1)how new cells are formed

(2)how cells die

(3)how cell division takes place

(4)how plant cell is different from animal cell

Subtopic:  Cell Theory |
 90%
From NCERT
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