1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Select the wrong statement from the following:
A
The chloroplasts are generally much larger than mitochondria
B
Both chloroplasts and mitochondria contain DNA
C
Both chloroplasts and mitochondria contain an inner and an outer membrane
D
Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following statements regarding mitochondrial membrane is not correct ?
A
The inner membrane is highly convoluted forming a series of infoldings
B
The outer membrane resembles a sieve
C
The outer membrane is permeable to all kinds of molecules
D
The enzymes of the electron transfer chain are embedded in the outer membrane
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following statements regarding cilia is not correct ?
A
Microtubules of cilia are composed of tubulin
B
The organized beating of cilia is controlled by fluxes of Ca2+ across the membrane
C
Cilia are hair-like cellular appendages
D
Cilin contain an outer ring of nine doublet microtubules surrounding two single microtubules
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
A major breakthrough in the studies of cells came with the development of electron microscope. This is because
A
Electron beam can pass through thick materials, whereas light microscopy requires thin sections
B
The resolution power of the electron microscope is much higher than that of the light microscope
C
The electron microscope is more powerful than the light microscope as it uses a beam of electrons which has wavelength much longer than that of photons
D
The resolving power of the electron microscope is 200-350 nm as compared to 0.1-0.2 nm for the light microscope
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