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Which of the following components provides sticky character to thebacterial cell?
(1) Cell wall                          (2) Nuclear membrane      
(3) Plasma membrane         (4) Glycocalyx

Select the mismatch 
(1) Gas vacuoles – Green bacteria
(2) Large central vacuoles – Animal cells
(3) Protists – Eukaryotes
(4) Methanogens – Prokaryotes

Water soluble pigments found in plant cell vacuoles are
(1) Anthocyanins                      (2) Xanthophylls
(3) Chlorophylls                        (4) Carotenoids

Mitochondria and chloroplast are
(a) semi-autonomous organelles
(b) formed by division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery
Which one of the following options is correct?
(1) Both (a) and (b) are false
(2) Both (a) and (b) are correct
(3) (b) is true but (a) is false
(4) (a) is true but (b) is false

Microtubules are the constituents of
(1) Centrosome, Nucleosome and Centrioles
(2) Cilia, Flagella and Peroxisomes
(3) Spindle fibres, Centrioles and Cilia
(4) Centrioles, Spindle fibres and Chromatin

Which one of the following cell organelles is enclosed by a single membrane?
(1) Nuclei                  (2) Mitochondria
(3) Chloroplasts        (4) Lysosomes

Cellular organelles with membranes are
(1) Lysosomes, Golgi apparatus and mitochondria
(2) Nuclei, ribosomes and mitochondria
(3) Chromosomes, ribosomes and endoplasmic reticulum
(4) Endoplasmic reticulum, ribosomes and nuclei

Chromatophores take part in :
(1) Respiration                (2) Photosynthesis
(3) Growth                       (4) Movement

Match the columns and identify the correct option 
       Column I                                            Column II
(a) Thylakoids                         (i) Disc-shaped sacs in Golgi apparatus
(b) Cristae                               (ii) Condensed structure of DNA
(c) Cisternae                           (iii) Flatmembranous sacs in stroma
(d) Chromatin                          (iv) Infoldings in mitochondria
(1) a(iii), b(iv), c(ii), d(i)
(2) a(iv), b(iii), c(i), d(ii)
(3) a(iii), b(iv), c(i), d(ii)
(4) a(iii), b(i), c(iv), d(ii)

Balbiani rings are sites of 
(1) RNA and protein synthesis
(2) Lipid synthesis
(3) Nucleotide synthesis
(4) Polysaccharide synthesis

In photosynthesis, the light-independent reactions take place at 
(1) Stromal matrix
(2) Thylakoid lumen
(3) Photosystem I
(4) Photosystem II

Select the correct matching in the following pairs 
(1) Rough ER – Oxidation of fatty acids
(2) Smooth ER – Oxidation of phospholipids
(3) Smooth ER – Synthesis of lipids
(4) Rough ER – Synthesis of glycogen

Which one of the following is not an inclusion body found in prokaryotes? 
(1) Polysome
(2) Phosphate granule
(3) Cyanophycean granule
(4) Glycogen granule

A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete of the same species, has
(1) Four times the number of chromosomes and twice the amount of DNA
(2) Twice the number of chromosomes and twice the amount of DNA
(3) Same number of chromosomes but twice the amount of DNA
(4) Twice the number of chromosomes and four times the amount of DNA

Which structures perform the function of mitochondria in bacteria?
(1) Nucleoid
(2) Ribosomes
(3) Cell wall
(4) Mesosomes

The solid linear cytoskeletal elements having a diameter of 6nm and made up of a single type of monomer are known as
(1) Microtubules
(2) Microfilaments
(3) Intermediate filaments
(4) Lamins

The osmotic expansion of a cell kept in water is chiefly regulated by
(1) Mitochondria
(2) Vacuoles
(3) Plastids
(4) Ribosomes

Select the correct statement from the following regarding cell membrane
(1) Lipids are arranged in a bilayer with polar heads towards the inner part
(2) Fluid mosaic model of cell membrane was porposed by Singer and Nicolson
(3) $N{a}^{+}$ and $K^{+}$ ions move across cell membrane by passive transport
(4) Proteins make up 60 to 70% of the cell membrane

Which one of the following is not considered as a part of the endomembrane system?
(1) Vacuole
(2) Lysosome
(3) Golgi complex
(4) Peroxisome

Which one of the following statements about the particular entity is true? 
(1) Centromere is found in animal cells, which produces aster during cell division
(2) The gene for producing insulin is present in every body cell
(3) Nucleosome is formed of nucleotides
(4) DNA consists of a core of eight histones

Keeping in view the ‘fluid mosaic model’ for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flip-flop movement)?
(1) Neither lipids nor proteins can flip-flop
(2) Both lipids and proteins can flip-flop
(3) While lipids can rarely flip-flop, proteins cannot
(4) While proteins can flip-flop, lipids cannot

Which of the following statements regarding cilia is not correct?
(1) The organized beating of cilia is controlled by fluxes of $C{a}^{2+}$ across the membrane
(2) Cilia are hair-like cellular appendages
(3) Microtubules of cilia are composed of tubulin
(4) Cilia contain an outer ring of nine doublet microtubules surrounding two single microtubules

According to widely accepted “fluid mosaic model” cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect?
(1) Proteins in cell membranes can travel within the lipid bilayer
(2) Proteins can remain confined within certain domains of the membrane
(3) Proteins can also undergo flip-flop movements in the lipid bilayer
(4) Many proteins remain completely embedded within the lipid bilayer

Genes for cytoplasmic male sterility in plants are generally located in 
(1) Mitochondrial genome
(2) Cytosol
(3) Chloroplast genome
(4) Nuclear genome

Function of telomeres in nucleus is
(1) Poleward movement
(2) To initiate the RNA synthesis
(3) To seal the ends of chromosome
(4) To recognise the homologous chromosome

Some of the enzymes, which are associated in converting fats into carbohydrates, are present in
(1) Microsomes
(2) Glyoxysomes
(3) Liposomes
(4) Golgi bodies

Which of the following organelle has single membrane?
(1) Mitochondria
(2) Sphaerosomes
(3) Nucleus
(4) Cell wall

Genetically inactive and highly condensed region with tightly packed DNA is
(1) Euchromatin
(2) Heterochromatin
(3) Chromatin
(4) Chromosome

The maximum formation of mRNA occurs in
(1) Ribosome
(2) Nucleoplasm
(3) Cytoplasm
(4) Nucleolus