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Q.151 Centromere
is required for -
[AIIMS
2005]
(1)
Movement of chromosomes towards poles
(2)
Cytoplasmic cleavage
(3)
Crossing over
(4)
Transcription
Q.152 At
what stage of the cell cycle are histone proteins synthesized in a eukaryotic
cell -[CBSE 2005]
(1)
During telophase
(2)
During S-phase
(3)
During G2-stage
of prophase
(4)
During entire prophase
Q.153 Plasmodesmata
are - [CBSE 2009]
(1)
Connections between adjacent cells
(2)
Lignified cemented layers between cells
(3)
Locomotary structures
(4)
Membranes connecting the nucleus with plasmalemma
Q.154 Synapsis
occurs between -[CBSE 2009]
(1)
Two homologous chromosomes
(2)
A male and a female gamete
(3)
mRNA and ribosomes
(4)
Spindle fibres and centromere
Q.155 Middle
lamella is composed mainly of -
[CBSE
2009]
(1)
Phosphoglycerides
(2)
Hemicellulose
(3)
Muramic acid
(4)
Calcium pectate
Q.156 Cytoskeleton
is made up of -
[CBSE
2009]
(1)
Proteinaceous filaments
(2)
Calcium carbonate granules
(3)
Callose deposits
(4)
Cellulosic microfibrils
Q.157 The
cell junctions called tight, adhering and gap junctions are found in -
[CBSE
2009]
(1)
Neural tissue
(2)
Muscular tissue
(3)
Connective tissue
(4)
Epithelial tissue
Q.158 Given
below is a schematic break-up of the phases/stages of cell cycle –
[CBSE
2009]
Which
one of the following is the correct indication of the state/phase in the cell
cycle -
(1)
A - Cytokinesis
(2)
B - Metaphse
(3)
C - Karyokinesis
(4) D - Synthetic phase
Q.159 There
is no DNA in - [CBSE 2009]
(1)
Hair root
(2)
An enucleated ovum
(3)
Mature RBCs
(4)
A mature spermatozoan
Q.160 A student wishes to study the cell structure under a
light microscope having 10X eye piece and 45X objective. He
should illuminate the object by which one of the follwoing colours of light so
as to get the best possible resolution ? [CBSE
2005]
(1) Yellow (2)
Grren
(3) Red (4)
Blue
Q.161 A major breakthrough in the studies of cell came with
the development of electron microscope. This is because [CBSE 2006]
(1) electron beam can pass through
thick mater als, whereas light microscopy requires thin section.
(2) the electron microscope is more
powerful than the light microscope as it uses a beam of electrons which has
wavelength much loger than that of photons
(3) the resolution power of the
electron microscope is much higher than that of the light microscope
(4) the resolving power of the
electron microscope is 200-350 nm as compared to 0.1-0.2 nm for the light
microscope
Q.162 During mitosis ER and nucleolus begin to disappear
at – [CBSE
2010]
(1) Late prophase
(2) Early metaphase
(3) Late metaphase
(4) Early prophase
Q.163 Which stages of cell division do the following
figures A and B represent respectively ?
[CBSE
2010]
(1) Metaphse - Telophase
(2) Telophase - Metaphse
(3) Late Anaphase - Prophase
(4) Prophase - Anaphase
Q.164 The main area of variuos types of activites of a
cell is – [CBSE 2010]
(1) Plasma membrane
(2) Mitochondrian
(3) Cytoplasm
(4) Nucleus
Q.165 Carrier ions like Na+ facilitate the absorption of substances like
–
[CBSE 2010]
(1) amino acids and glucose
(2) glucose and fatty acids
(3) fatty acids and glycerol
(4) fructose and some amino acids
Q.166 The plasma membrane consists
mainly of –[CBSE
2010]
(1)
phospholipids embedded in a protein bilayer
(2)
proteins embedded in a phospholipid bilayer
(3)
proteins embedded in a polymer of glucose
molecules
(4)
proteins embedded in a
carbohydrate
bilayer
Q.167 An elaborate network of filamentous
proteinaceous structures present in the
cytoplasm which helps in the maintenance of cell shape is called -
[AIPMT mains 2010]
(1) Endosplasmic
Reticulum
(2) Plasmalemma
(3) Cytoskeleton
(4) Thylakoid
Q.168 Identify the components labelled A, B, C and
D in the diagram below from the list (i) to (viii) given along with –
[AIPMT mains 2010]
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
The correct components are
A B C D
(1) (i) (iv) (viii) (vi)
(2) (vi) (v) (iv) (vii)
(3) (v) (i) (iii) (ii)
(4) (v) (iv) (viii) (iii)
Q.169 In eubacteria, a cellular component that
resembles eukaryotic cell is :
[AIPMT
Pre- 2011]
(1) Cell wall
(2) Plasma membrane
(3) Nucleus
(4) Ribosomes
Q.170 Which one of the following organisms is not
an example of eukaryotic cells ?[AIPMT Pre- 2011]
(1) Amoeba proteus
(2) Paramcciumcaudatum
(3) Escheria coli
(4) Euglena viridis
Q.171 Select the correct opition with respect to mitosis [AIPMT Pre- 2011]
(1) Chromosomes move to the
spindle equator and get aligned along equatorial plate in metaphase
(2) Chromatids separate but remain
in the
centre of the cell in anaphase
(3) Chromatids start moving towards
opposite poles in telophase
(4) Golgi complex and endoplasmic
reticulum are still visible at the end of prophase
Q.172 Important site for formation of glycoproteins
and glycolipids is :
[AIPMT Pre- 2011]
(1) Lysosome (2) Vacuole
(3) Golgi apparatus (4) Plastid
Q.173 Peptide synthesis inside a cell takes place in
: [AIPMT Pre- 2011]
(1) Ribosomes (2) Chloroplast
(3) Mitochondria (4) Chromoplast
Q.174 In land plants, the guard cells differ from
other epidermal cells in having :
[AIPMT Pre- 2012]
(1) Chloroplasts
(2) Cytoskeleton
(3) Mitochondria
(4) Endoplasmic reticulum
Q.175 What would be the number of chromosomes of the
aleurone cells of a plant with 42 chromosomes in its root tip cells ? [AIPMT Pre- 2013]
(1) 21 (2) 42 (3) 63 (4) 84
Q.176 At metaphase, chromosomes are attached to the
spindle fibres by their :
[AIPMT Mains- 2015]
(1) Centromere
(2) Satellites
(3) Secondary constrictions
(4) Kinetochores
Q.177 Which one of the following is not considered
as a part of the endomembrane system ?
[AIPMT Mains- 2016]
(1) Lysosome (2) Golgi complex
(3) Peroxisome (4) Vacuole
Q.178 The figure below shows the structure of a
mitchondrion with its four parts labelled (A), (B), (C). and (D) Select the
part correctly matched with its function –
[AIPMT Mains- 2017]
(1) Part
(A) : Matrix – major site for respiratory chain enzymes
(2) Part
(D) : Outer membrane – gives rise to inner membrane by splitting
(3) Part (B) : Inner membrane –
forms infoldings called cristae
(4) Part (C) : Cristae – possess single circular DNA molecule and
ribosome
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