CBSE
Multiple Choice QuestionsThe wall of bacteria is consists of :
N-acetyl glucosamine
N-acetyl muramic acid
both (a) and (b)
cellulose
Cell membrane is made up of:
protein
cellulose
lipids
lipids, carbohydrates and protein
The 'power house' of cell is :
nucleus
golgi body
mitochondria
chloroplast
Which of the following is related to glycosylation of protein?
Lysosome
Mitochondrium
Peroxisome
Rough endoplasmic reticulum
Plant cell is differ from animal cell because of
the presence of cell wall and absence of chlorophyll in plant cell
the presence of cell wall and chlorophyll in plant cell
the absence of cell wall and presence of chloroplast in animal cell
the absence of cell wall and presence of chlorophyll in plant cell
A chromosome carrying the centromere at one of the ends is called
acentric
submetacentric
telocentric
metacentric
Assertion: Specialization ofcells is advantageous for the organism.
Reason : It increases the operational efficiency of an organism.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both the assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both the assertion and reason are false.
DNA remains absent in :
chloroplast
nucleus
peroxysomes
chromosome
Assertion : The number of cells in a multicellular organism is inversely proportional to the size of body.
Reason : All the cells in the biological world are of same size.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both the assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both the assertion and reason are false.
If centromere is the middle, the chromosome is called :
sub-metacentric
metacentric
acentric
telocentric
