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Cell_ The Unit Of Life

214 Questions Start Allen Test
All Exams Allen
Q201 Allen ANALYTICAL QUESTIONS MCQ
Plant and prokaryotic cells are similar with each other but differ from animal cells:-
A.
In possessing 70 S ribosomes
B.
In possessing cell wall
C.
In possessing mitochondria
D.
In possessing chloroplasts
Q202 Allen ANALYTICAL QUESTIONS MCQ
Ratio of protein and lipid in the membrane of erythrocytes of human being is :-
A.
1.8
B.
1.3
C.
0.80
D.
0.60
Q203 Allen ANALYTICAL QUESTIONS MCQ
A student did the cell fractionation of a tissue but forgot to label his tubes. The content of one tube when studied showed organelles bounded by membrane with activity of catalase enzyme. These organelles could be :-
A.
SER
B.
Chloroplast
C.
Lysosome
D.
Peroxisome
Q204 Allen ANALYTICAL QUESTIONS MCQ
Given below are two statement - Statement-I :- In plants, the tonoplast facilitates the transport of a number of ions and other materials against concentration gradient into the vacuole. Statement-II :- Golgi apparatus is the important site of formation of glycoprotein and glycolipids. In the light of the above statements, choose the correct answer from the options given below -
A.
Both statement I and statement II are correct
B.
Both statement I and statement II are incorrect
C.
Statement I is correct but statement II is incorrect
D.
Statement I is incorrect but statement II is correct
Q205 Allen ANALYTICAL QUESTIONS MCQ
Assertion (A) : Cell wall is a living rigid structure which form outer covering for the plasma membrane of fungi and plants. Reason (R) : Secondary cell wall is formed on the outer (towards middle lamella) side of the cell.
A.
Both Assertion and Reason are True and the Reason is a correct explanation of the Assertion.
B.
Both Assertion and Reason are True but Reason is not a correct explanation of the Assertion.
C.
Assertion is True but the Reason is False.
D.
Both Assertion and Reason are False.
Q206 Allen ANALYTICAL QUESTIONS MCQ
Assertion (A) : Chloroplast & Mitochondria are considered as "Semi-autonomous organelle" of the cell. Reason (R) : Both the organelle possess their own genetic material and have their own protein synthesising machinery.
A.
Both Assertion and Reason are True and the Reason is a correct explanation of the Assertion.
B.
Both Assertion and Reason are True but Reason is not a correct explanation of the Assertion.
C.
Assertion is True but the Reason is False.
D.
Both Assertion and Reason are False.
Q207 Allen ANALYTICAL QUESTIONS MCQ
Given below are two statement - Statement-I :- At number of places the nuclear envelop is interrupted by minute pores. Statement-II :- Material of the nucleus stained by the acidic dye was given the name chromatin by Flemming. In the light of the above statements, choose the correct answer from the options given below -
A.
Both statement I and statement II are correct
B.
Both statement I and statement II are incorrect
C.
Statement I is correct but statement II is incorrect
D.
Statement I is incorrect but statement II is correct
Q208 Allen ANALYTICAL QUESTIONS MCQ
Read the following statements carefully and select the option which includes incorrect statements -
(a) RER is frequently observed in the cells actively involved in lipid synthesis & secretion.
(b) The SER is the major site for protein synthesis
(c) The golgi cisternae are concentrically arranged near the nucleus.
(d) Lysosomes are rich in alkaline hydrolases.
A.
Statement (a), (b) and (c)
B.
Statement (a), (b) and (d)
C.
Statement (b), (c) and (d)
D.
Statement (a), (c) and (d)
Q209 Allen ANALYTICAL QUESTIONS MCQ
New cells generate from-
A.
bacterial fermentation
B.
regeneration of old cells
C.
pre-existing cells
D.
abiotic materials
Q210 Allen ANALYTICAL QUESTIONS MCQ
Select the wrong statement from the following:
A.
The chloroplasts are generally much larger than mitochondria
B.
Both chloroplasts and mitochondria contain an inner and an ou
C.
Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane
D.
Both chloroplasts and mitochondria contain DNA
Q211 Allen ANALYTICAL QUESTIONS MCQ
Identify the components labelled A, B, C and D in the diagram below from the list (i) to (viii) given with -

Components:
(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii) Nucleus
A.
A-(i), B-(iv), C-(viii), D-(vi)
B.
A-(vi) B-(v), C-(iv), D-(vii)
C.
Aā€”(v), Bā€”(i), Cā€”(iii), Dā€”(ii)
D.
Aā€”(v), Bā€”(iv), Cā€”(viii), Dā€”(iii)
Q212 Allen ANALYTICAL QUESTIONS MCQ
The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B), (C) and (D). Select the part correctly matched with its function.
A.
Part (A): Matrix - major site for respiratory chain enzymes
B.
Part (D): Outer membrane - gives rise to inner membrane by splitting
C.
Part (B): Inner membrane - forms infoldings called cristae
D.
Part (C): Cristae - possess single circular DNA molecule and ribosomes
Q213 Allen ANALYTICAL QUESTIONS MCQ
Which one of the following cellular parts is correctly described?
A.
Ribosomes - those on chloroplasts are larger (80 S) while those in the cytoplasm are smaller (70 S)
B.
Lysosomes-optimally active at a pH of about 8.5
C.
Thylakoids-flattened membranous sacs forming the grana of chloroplasts
D.
Centrioles - sites for active RNA synthesis
Q214 Allen ANALYTICAL QUESTIONS MCQ
Which one of the following organelle in the figure correctly matches with its function?
A.
Rough endoplasmic reticulum, protein synthesis
B.
Rough endoplasmic reticulum, formation of glycoproteins
C.
Golgi apparatus, protein synthesis
D.
Golgi apparatus, formation of glycolipids