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1.

Which organoid (organelle) is located near the nucleus and contains stack of flattened cisternae ( tubular ) structures ?A. ChloroplastB. Golgi bodiesC. CentrosomeD. Centriole

Answer» Correct Answer - B
2.

Golgi bodies containA. DNA and RNAB. Proteins, DNA and lipidsC. Proteins, phospholipids and enzymesD. Respiratory enzymes and digestive enzymes

Answer» Correct Answer - C
3.

In plant cells the number of golgi bodies increases duringA. food synthesisB. cell divisionC. translocationD. respiration

Answer» Correct Answer - B
4.

One of the organelles showing polarity isA. ribosomesB. vacouleC. Golgi bodiesD. lysosomes

Answer» Correct Answer - C
5.

Which part of sperm is formed by Golgi bodies ?A. Middle pieceB. Axial filamentC. NeckD. Acrosome

Answer» Correct Answer - D
6.

Microfilaments were discovered by Paleviz et al, 1974. These are formed ofA. actinB. tubulinC. myoglobinD. myosin

Answer» Correct Answer - A
7.

Choose the correct statement.A. Ribosomal subunits are united during protein synthesis.B. Ribosomal subuits always remain united.C. Ribosomal subunits are united in nucleus during r-RNA synthesis.D. All are correct statements.

Answer» Correct Answer - A
8.

Protein sythesis occurs in cell inA. cytoplasm onlyB. cytoplas, mitochondria and chloroplastC. ribosome attached on nuclear envelopeD. nucleolus and cytoplasm both

Answer» Correct Answer - B
9.

Tubulin protein occurs inA. enzymesB. RERC. microtubules and ciliaD. microfilaments and microvilli

Answer» Correct Answer - C
10.

Protein synthesis can occur inA. nucleoplasm and cytoplasmB. mitochondria and chloroplastC. ribosome and centrosomeD. all of the above

Answer» Correct Answer - B
11.

Cup-shaped chloroplast in present inA. SpirogyraB. ChlamydomonasC. UlothrixD. All

Answer» Correct Answer - B
12.

The functional characteristics of a Plasma membrane in fluid mosaic model are determined byA. extrinsic proteinsB. intrinsic proteinsC. both (1) & (2)D. lipid molecules

Answer» Correct Answer - C
13.

Desmosomes possessA. desmotubulesB. intercellular cementing materialC. myofibrilsD. all of the above

Answer» Correct Answer - B
14.

The eukaryotic cells are essentially two envelope system because they containA. cell wall and plasmamembraneB. plasmamembrance and nuclear membraneC. plasmamembran and thylakoidD. double membrance bound cell organelles

Answer» Correct Answer - B
15.

Nuclear membrane is derived fromA. ERB. plasma membraneC. membrane of mitochondriaD. nucleoplasm

Answer» Correct Answer - A
16.

Which is absent in Mitochondrial DNA ?A. Basic Histone ProteinsB. PurinesC. PhosphatesD. All correct

Answer» Correct Answer - A
17.

Which of the following structures has single membrane ?A. NucleusB. CentrioleC. NucleousD. None of these

Answer» Correct Answer - D
18.

Nuclear envelope is a derivative ofA. membrane of Golgi complexB. microtublesC. rought endoplasmic reticulumD. smooth endoplasmic reticulum

Answer» Correct Answer - C
19.

Which of the following statements regarding mitochondrial membrane is NOT correct ?A. The inner membrane is highly convoluted forming a series of infoldingsB. The outer membrane resembles a sieveC. The outer membrane is permeable to all kinds of moleculesD. The enzymes of the electron transfer chain are embedded in the outer membrane

Answer» Correct Answer - D
20.

Cytochromes are found inA. outer wall of mitochondriaB. cirstae of mitochondriaC. lysosomesD. matrix of mitochondria

Answer» Correct Answer - B
21.

Which one of the following does not differ in E. coli and ChlamydomonasA. Chromosomal organizationB. Cell wallC. Cell membraneD. Ribosomes

Answer» Correct Answer - C
22.

DNA is not present in `:`A. ribosomesB. nucleusC. mitochondriaD. choroplast

Answer» Correct Answer - A
23.

What is true about ribosomes ?A. These are composed of ribonucleic acid and proteinsB. These are found only in eukaryotic cellsC. These are self-splicing introns of some RNAsD. The prokaryotic ribosomes are 80 S, where "S" stands for sedimentation coefficient.

Answer» Correct Answer - A
24.

Microtubules are hollow, cylindrical, non contractile membraneless, cytoskeletal structure of 250 Å diameter. These are composed of sulphur rich tubulin protein and arise from nucleating centres like kietochore, basal body, massules of centrioles etc. This tubulin occurs inA. 11 longitudinal protofilamentsB. 13 protofilamentsC. 2 + 9 protofilamentsD. 0+ 9 protofilaments

Answer» Correct Answer - B
25.

Microtubules help inA. cilia, flagella, centrioles, spindle aparatus formation/cell divisionB. chromosomal fibres, nerve processes, endocytosisC. cell motility and cell shape, muscle contractionD. all the above are correct

Answer» Correct Answer - A
26.

Which of the following is true for nucleolus ?A. It is site for active ribosomol RNA synthesis.B. It takes part in spindle formationC. It is a membrance-bound structure.D. Larger nucleoli are present in dividing cells

Answer» Correct Answer - A
27.

A cell organelle containing hydrolytic enzymes isA. LysosomeB. MicrosomeC. RibosomeD. Mesosome

Answer» Correct Answer - A
28.

Select the incorrect match.A. `{:("Polytene chromosomes ", - , " Oocytes of amphibians "):} `B. `{:("Submetacentric chromosomes ",-, "L - shaped chromosomes "):} `C. `{:("Allosomes",-,"Sex chromosoems"):} `D. `{:("Lampbrush",-,"Dipotene bivalents"):} `

Answer» Correct Answer - A
29.

Many ribosomes may associate with a single mRNA to form mutiple copies of a poolypeptide simultaneously. Such strings of ribosomes are termed asA. NucleosomeB. PlatidomeC. Polyhedral bodiesD. Polysome

Answer» Correct Answer - D
30.

The Golgi complex participates inA. Activation of amino acidsB. Respiration is bacteriaC. Formation of secretory vesiclesD. Fatty acids

Answer» Correct Answer - C
31.

Select the mismatchA. Gas vacuoles - Green bacteriaB. Large central vacuoles - Animal cellsC. Protists - EukaryotesD. Methanogens - Prokaryotes

Answer» Correct Answer - B
32.

Match the columns and identify the correct option `{:("Column -I ","Column-II"),("Thylakoids","(i) Disc-shaped sacs in golgi appartus"),("Cristae","(ii) Condensed structure of DNA"),("Cisternae","(iii) Flat membranous sacs in stroma"),("Chromatin","(iv) Infoldings in mitochondria"):}`A. `{:(,(1),(2),(3),(4)), (,(iv),(iii), (i), (ii)):}`B. `{:(,(1),(2),(3),(4)), (,(iii),(iv), (i), (ii)):}`C. `{:(,(1),(2),(3),(4)), (,(iii),(i), (iv), (ii)):}`D. `{:(,(1),(2),(3),(4)), (,(iii),(iv), (ii), (i)):}`

Answer» Correct Answer - B
33.

Microtubules are the constituents ofA. Spindle fibres, Centrioles and CiliaB. Centrioles, Spindle fibres and ChromotinC. Centrosome, Nucleosome and CentriolesD. Cilia

Answer» Correct Answer - A
34.

Demolition squad of the cell isA. dictysosomeB. RERC. glyoxysomesD. lysosome

Answer» Correct Answer - D
35.

Which of the following represents the correct sequence of relative sizes ( in descending order ) of the entities named ?A. Cell, nucleus, water molecule, oxygen atom, chromosomeB. Nucleus, water molecule, cell, chromo-some, oxygen atomC. Chromosome, cell, nucleus, water molecule, oxygen atomD. Cell, nucleus, chromosome, water molecule, oxygen atom.

Answer» Correct Answer - D
36.

The size of a cell depends uponA. its oxygen requirementsB. its minerals and materials requirementsC. regulation ability of its nucleusD. all of the above

Answer» Correct Answer - D
37.

Animal cells have more mitochondria than plant cells becauseA. plant cells need less energyB. animal cells do not have chloroplastC. both correctD. both wrong

Answer» Correct Answer - B
38.

Mitochondria are non-existent inA. red algaeB. bacteriaC. green algaeD. all of these

Answer» Correct Answer - B
39.

Nucleoli are not found inA. Blue green algaeB. MaizeC. PancreasD. Fungi

Answer» Correct Answer - A
40.

Which of the following statements justifies that " the cell is a self-contained unit" ?A. It independently carries out all fundamental biological processes.B. It oxidises food molecules to produce energy and utilises this energy to synthesise complex molecules.C. Reproduces with similar herediatary properties.D. All of the above

Answer» Correct Answer - D
41.

L- shaped chromosomes are termed :A. telecentricB. submetacentricC. sex chromosomeD. acrocentric

Answer» Correct Answer - B
42.

Point out the wrong matching.A. Mitochondria - RepirationB. Plastid - PhotosyntesisC. Ribosome - CarbohydratesD. Cytoplasm - RNA

Answer» Correct Answer - C
43.

Which of the following observations most strongly support the view that mitochondria contain transport enzymes aggregated into compact association ?A. Mithochondria have a property to concentrate in cells which form locomotory structres.B. Disruption of mitochondria yields membrane fragments which are able to syntesize ATP.C. Mitochondria have a folded inner membrane.D. A contractile protein capable of utilizing ATP is obtained from mitochondria

Answer» Correct Answer - B
44.

Pit membrane is actuallyA. primary walllB. tertiary wallC. secondary wallD. cell membrance

Answer» Correct Answer - A
45.

Golgi apparatus serves as the centre ofA. proteins productionB. enzyme productionC. `beta` - oxidation of fatty acidsD. carbohydrates metabolism

Answer» Correct Answer - D
46.

Oxysomes/Elementary particles/`F_0-F_1 `particles are centre of oxidative phosphorylation and found inA. matrix of mitochondriaB. thylakoidsC. inner menbrane of mitochondriaD. all wrong

Answer» Correct Answer - C
47.

Secondary lysosomes should haveA. only enzymesB. enzymes and food particlesC. food particles onlyD. undigested food only

Answer» Correct Answer - B
48.

When lysosomes burst, they release their enzymes and digest entire cell. It is calledA. autolysisB. autophagyC. endocytosisD. exocytosis

Answer» Correct Answer - A
49.

Unicisternal dictyosomes are found inA. plant cellsB. fungiC. bacteriaD. algal cell

Answer» Correct Answer - B
50.

A close relationship between ER, lysosome and dictyosomes is denoted asA. vacuolar sytemB. GERLC. annulate lamellaeD. internal mileu

Answer» Correct Answer - B