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Quiz 15
Mdcat-past-papers Quiz
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281. Cell wall of prokaryotic cell is composed of :
Carbohydrates
Proteins
Carbohydrates & proteins
Proteins & lipids
282. Which of the following is absent from membrane of prokaryotes?
Glycolipid
Cholesterol
Glycoprotein
Phopholipid
283. Which of the following is a prokaryote?
Protista
E. coli
Ameoba
Fungi
284. Which of following correctly shows structures which founds in a eukaryotic?
285. Which of the following is present in both eukaryotic and prokaryotic cell?
Ribosome
Chloroplast
Nucleus
Mitochondria
286. Fimbriae and trans peptidase are present in outer surface of cell:
Mitochondria
Chloroplast
Both A & B
Vacuole
287. What distinguishes prokaryotic cell wall from fungal cell wall?
Prokaryotic cell wall contains cellulose
Prokaryotic cell wall contains peptidoglycan
Prokaryotic cell wall contains silica
Prokaryotic cell wall contains chitin
288. While finding the relative atomic mass, which of the following is used to compare the atomic mass of chlorine (35.5 amu)?
Carbon-13
Carbon-12
Neon-20
Nucleon Number
289. One a.m.u stands for:
An atom of C-12
1/12 of a carbon
1/12th of H
1 atom of all the elements
290. Which element is used as standard to determine atomic mass of an element?
H
Cl
P
C
291. The average weight of atoms of an element compared to the weight of one atom of ----- is called atomic weight.
Carbon
Hydrogen
Helium
Nitrogen
292. The type and relative amount of each isotope in an element can be found by:
R spectroscopy
U.V spectroscopy
Mass spectrometry
N.M.R
293. The atomic masses of element depend upon:
Atomic number
Number of electrons
Number of isotopes & their abundance
None of the above
294. No individual atom in sample of 1 mole of Neon has a mass of 20.18 a.m.u. Because it is:
Overall mass of an isobar
It is a fractional mass
It is molar mass of Ne
Average atomic mass of Ne
295. 1 Atomic Mass Unit is equal to:
Mass of one atom of H
1.66 x 10^-24 kg
Equal to mass of electron
1.66 x 10^-28 kg
296. Which of the following contains the same number of molecules as 22 gram of carbon dioxide?
9g of water
2g of H gas
32g of O gas
71g of chlorine
297. Avogadro's constant is number of:
Atoms in 1g He
Molecules in 35.5g chlorine
Electrons in 2g Hydrogen
Atoms in 24g Mg
298. Diameter of atom is:
0.9nm
0.2nm
0.5nm
1nm
299. Size of molecules depends upon:
No. of atoms
Shape of atoms
Both A & B
None of the above
300. How many molecules are there in 2.1 mole of CO₂?
1.26 x 10²⁴
3.49 x 10²⁴
2.53 x 10²⁴
3.79 x 10²⁴
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