Bio, Unit # 4, The Cell, F. Sc Part-I
The Cell
1. The
resolution of electron microscope is between: (LB-2007)
a. 2-6
Mm b. 2-4 Angstrom c. 3-6 Angstrom d. 3-9 mm
2. The primary
wall is composed of cellulose and some deposition of pectin and:
a. Hemicelluloses b. Silica c. Lighin d.
Chitin
3. --- disease
is because of absence of a particular enzyme that is involved in the catabolism
of lipids.
a. Hunter's b. Niernan-Pick c.
Tay-Sach's d. Watson's
4. Peroxisomes are characterized by
containing H2O2 producing oxidases and:
a. Ligase b. Polymerase c. Isomerase d. Catalase
5. The
organelle which is present only during a short period in the germination of the
lipid-rich seed is:
a. Glyoxisome b.
Peroxisome c. Ribosome d. Iysosome
6. Cyclosis and
amoeboid movements are because of:
a. Microfilaments b. Intermediate filaments c. Microtubules d. Macrotubules
7. Chlorophyll
has Mg++ while haem has--— as the central atom,
a. Ca++ b. K+ c.
Fe++ d. Na+
8. The fluid
which surrounds the thylakoids is called
a. Matrix b. Stroma c.
Milieu d. Medium
9. Generally,
the cells with more than two nuclei are called:
a. Mononucleate b. Binucleate c. Polynucleate d.
Multinucleate
10. Robert Hooke
reported his work in his famous publication:
a. Micrographia b. Biologia c. Zoologica d.
Britanica
11. In 1665, the cells of cork were
studied under microscope by:
a. Robert Brown b. Robert
Hooke c. Robert Mug Atoe d. Robert Koch
12. Who (1805),
believed that "all living beings originate from or consist of vesicles or
cells"
a. Ernst Hackle b. Robert Koch c. LorenzOken d. Louis Pasteur
13. In 1831, the
presence of nucleus in the cell was reported by: (MB-2007)
a. Robert Koch b. Robert Hooke c. Robert Mug Abe d. Robert Brown
14. Who (1809) said "no body can have
life if its constituent parts are not cellular tissue or are not formed by
cellular tissue."
a. Jean Baptist de-Lamarck b. Allen Lamarck c. Carolus Linnaeus d.
Robert Whittaker
15. Who
hypothesized that new cells were formed only by the division of previousely
existing living cells
a. Lorenz Oken b. Rudolph Virchow c. August Weismann d. Louis Pasteur
16. The cell theory states that all living
beings animals-and plants are “ The cell theory states that all living beings
animals-and plants are”
a. Chemical products b. Solar products c. Cell products d. Foreign products
17. The cell
theory was finally formulated by: (LB-2004)
a. Sameer& Shamshair b. Omer & Ali c. Schleiden & Schwann d. Watson & Crick
18. Cell is the basic structural as
well as functional unit for-all
a. Microorganisms b.
Plants c. Animals d. Organisms
19. The outermost
layer in the animal cell that lies beneath the cell wall in plant cell is:
a. Plasma membrane b. Cell
membrane c. Tissue membrane d. Both a & b
20. Cell membrane
is chemically composed of:
a. Lpids &
proteins b. Lipids & carbohydrates c. Proteins & nucleic acids d. Proteins & fatty acids
21. Cell membrane
has 60-80%:
a. Lipids b. Proteins c. Carbohydrates d. Vitamins
22. Cell membrane
has 20-40%:
a. Carbohydrates b.
Proteins c. Lipids d. Vitamins
23. Generally it
was believed that plasma membrane is composed lipid bilayer sand witched
between:
a. Two carbohydrate layers b. Two nucleic acid layers
c. Two vitamins layers d. Two protein layers
24. Movement of
materials against concentration gradient is termed a
a. Active transport b. Passive transport c. Osmosis d.
Diffusion
25. Endocytosis
which involves ingestion of solid material is called:
a. Pinocytosis b. Phagocytosis c. Solidocytosis d. Both b & c
26. Endocytosis
which involves ingestion of liquid material is call pinocytosis.
a. Pinocytosis b. Phagocytosis c. Liquidocytosis d. Both a & c
27. The outer
most boundary in most of the plant cells is:
a. Cell membrane b. Cell wall c. Both a&
b d. None
28. Inner to the
cell "membrane lies cytoplasm which contains cell:
a. Organs b. Granules c. Organelles d. Grains
29. The soluble
part of the cytoplasm is called:
a. Stroma b. Gel c. Matrix d. Cytosol
30. Chemically
cytoplasm is about:
a. 90% water b. 80% water c.
70% water d. 60% water
31. The most
important function of the cytoplasm is to act as a store
a. Surplus chemicals b. Vital chemicals c. Waste chemicals d.
Reactive chemicals
32. Endoplasmic reticulum is visible under
electron microscope as a network of channels extending throughout the
a. Cell b. Nucleus c. Membranes d. Cytoplasm
33. There are two morphological forms of
endoplasmic reticulum, a rough form with attached ribosomes and a smooth form
without:
a. Peroxisomes b. Dictyosomes c.
Glyoxisomes d. Ribosomes
34. Eukaryotic
ribosomes are composed of almost an equal amount of:
a. RNA & protein b. DMA & protein c. RNA & lipid d. RNA & carbohydrates
35. Ribosomes are
particles of
a. Riboglycoprotein b. Ribonucleoprotein c. Riboglycolipid d.
Riboglycolic acid
36. The RNA
present in ribosome is called:
a. Messenger RNA b. Transfer RNA c. Ribosomal RNA d.
All a, b, c
37. Each eukaryotic ribosome consists of two
subunits. The larger subunit sediments at 6OS while smaller subunit sediments
at:
a. 10S b. 20S c.
30S d. 40S
38. Golgi
apparatus was discovered by:
a. Golgi b. Goldi c.
Golki d. Golbi
39. Golgi
apparatus consists of stacks of flattened, membrane bound sacs, called:
a. cristae b. Cisternae c. Pouch d. Pod
40. Golgi
apparatus is concerned with cell:
a. Emission b. Oozing c. Secretion d. Discharge
41. Lysosomes
were isolated as separate components for the first time
a. Palade b. Altman c. Bander. D. De Duve
42. Any foreign
object that gains entry into the ceil is immediately engulfed by the:
a. Lysosomes b. Ribosomes c.
Peroxisomes d. Glyoxisomes
43. The processed
enzymes are budded off as Golgi vesicles and are called as
a. Secondary lysosomes b. Primary lysosomes c. Tertiary proteins d. Primary proteins
44. Animal cells and the cells of some
microorganisms and lower plants contain two centricles located near the
exterior surface of the:
a. Mitochondria b. Golgi apparatus c. Nucleus d. Glydxisomes
45. In cross
section each centriol.e consists of a cylindrical array of:
a. 3 microtubules b. 5 microtubules c. 7 microtubules d. 9 microtubules
46. Membrane
bounded green pigment containing bodies present in the cells are called as:
(GB-2007)
a. Plastids b. Chloroplasts c.
Chromoplasts d. Leucoplasts
47. The
chloroplasts are organelles specializing in
a. Respiration b. Photosynthesis c. Nutrition d. Excretion
48. Chromoplasts
impart colours to the plants other than;
a. Yellow b. Red c.
Blue d. Green
49. DNA plays an
important role in the:
a. Legacy b. Birthright c.
Reproduction d. Inheritance
50. RNAs play
essential role in:
a. Protein biosynthesis b. Lipid biosynthesis
c. Carbohydrate biosynthesis d. Fatty acid metabolism
51. A very well
defined nucleus is present in:
a. Prokaryotes b. Eukaryotes c. Both a & b d. None
52. The genetic
material (DNA) is without any membrane covering in:
a. Prokaryotic cells b. Eukaryotic cells c. Both a & b d. None
53. Prokaryotes
have small sized ribosomes 70S compared eukaryotes:
a. 100S b. 110S c.
80S d. 90S
54. The entire
cell wall of prokaryotes is often regarded as a sir huge molecule or molecular
complex called
a. Murein b. Cochlea c.
Lagena d. Sacculus
55. The name peroxisome was applied because
this organelle is specifically involved in the formation and decomposition of:
a. Hydrogen peroxide b .Carbon dioxide c. Nitrogen peroxide d. Hydrogen oxide
56. The diameter
of peroxisomes is about:
a. 1.0 urn b. 0.5am c. 1.5 urn d. 2.0 urn
57. Glyoxisomes
are most abundant in
a. Animal embryos b. Microorgansims c. Plant seedlings d.
Fungal hyphae
58. Cytosol
contains cytoskeletal fabric formed of:
a. Microtubules b. Microfilaments c. Intermediate filaments d. All a, b, c
59. Microfilaments
are considerably more slender cylinders made up of contractile protein
a. Actin b. Myosin c.
Troponin d. Tubulin
60. Cyclosis and
amoeboid movements are because of
a. Microtubules b.
Microfilaments c. Intermediate
filaments d. All a, b, c
61. Intermediate
filaments play role in maintenance of:
a. Cell size b. Cellturgor c.
Cell shape d. Cell
organelles
62. The inner
surface of cristae in the mitochondria! matrix has small knob like structures
known as:
a. P2 particles b. GO granules c. B7 button d. F1 particles
63. Chloroplasts
vary in their shape and size with a diameter of about:
a. 4-6 um b. 5-7 um c.
3-5 um d. 7-9 um
64. The fluid
which surrounds the thylakoid is called: (GB-2005)
a. Matrix b. Stroma c.
Milieu d. Medium
65. The flattened
vesicles which arrange themselves to form grana and ntergrana are:
a. Alkaloids b. Thaloids c.
Thylakoids d. Golgi complex
66. On an average,
there are 50 or more thylakoids piled to form:
a. Four grana b. Three grana c. Two grana d. One granum
67. Chromoplasts
help in pollination and dispersal of
a. Flowers b. Fruits c.
Seeds d. Plants
68. Nucleus is
only visible when the cell is in:
a. Non-dividing stage b. Dividing stage c. Growing stage d. Embryonic stage
69. The cell consisted of 3 basic parts,
i.e., nucleus, the (cytoplasm) surrounding the nucleus, and an outer thin
covering or membrane (plasma membrane) was found by:
a. August Weismann b. Louis Pasteur c. Schwann & Schleiden d. Lorenz Oken
70. Who (1862) supplied experimental proof
for Virchow's hypothesis by demonstrating that microorganisms (i.e., bacteria)
could be formed only from existing microorganisms (bacteria):
a. August Weismann b. Louis1 Pasteur c. Schwann & Schleiden d.
LorenzOken
71. Who
(1880) said that all presently living cells have a commonbecause they have
basic similirities in structure and molecules etc
a. August Weismann b.
Louis Pasteu c. Rudolph Virchow d. Lorenz Oken
72. In
multicellular organisms there is a division of labour among
a. Systems b. Organs c. Organslles d. Cells
73. The cell
which contract and relax are
a. Muscle cells b. Nerve cells c. Organ cells d. Bone cells
74. The cells
which transmit impulses are:
a. Blood cells. b. Nerve cells c. Lidney cells d. Bone cells
75. The cells
which secrete their hormones are: (SB-2005
a. Blood cells b. Nerve cells c. Gland cells d. Bone cells
76. Red blood
cells carry;
a. Hydrogen b. Carbon c.
Nitrogen d. Oxygen
77. Some stomach
cells secrete
a. Gastric juice b. Hepatic juice c. Pancreatic juice d.
Bile
78. The cells
which conduct water and mineral salts from soil to the aerial parts of the
plant are:
a. Phloem cells b. Xylem cells c.
Pith cells d. Cortex
cells
79. The cells
which transport food in plants are
a. Phloem cells . b. Xylem cells c. Pith cells d.
Cortex cells
80. The cells
which give support to the plant are
a. Sclerenchymatous cells b. Chlorenchymatous cells
c. Parenchymatous cells d. Collenchymatous cells
81. The cells
which carry out photosynthesis are:
a. Sclerenchymatous cells b. Chlorenchymatous cells
c. Parenchymatous cells d. Collenchymatous cells
82. The cells
which store surplus food in plants are;
a. Sclerenchymatous cells b. Chlorenchymatous cells
c. Parenchymatous cells d. Collenchymatous cells
83. Eukaryotic
cells could be as big as an:
a. Eagle's egg b. Whale's egg c. Elephant's egg d. Ostrich's egg
84. Cells of
animals and plants are complex and have a distinct nucleus and are called:
a. Eukaryotic b. Prokaryotic c. Metazdan d . Parazoa
85. One um is:
a. 0.000,001 meter b. 1*10-6 of a meter c. 0.0000001 meter d. Both a,b
86. The size of
the cell is measured in:
a. u b.
um c. m d. cm
87. Cell membrane
allows only selective substances to pass through it, then it is. known as
a. Differentially permeable b. Selectively permeable c. Semi-permeable d. All a, b, c
88. The inward movement of the materials by
infolding of cell membrane in the form of vacuole is known as:
a. Endocytosis b. Exocytosis c. Cyclosis d. Both b & c
89. Cell wall is
secreted by the:
a. Nucleoplasm b. Protoplasm c. Centrioles d.
Glyoxisomes
90. When the cell
dies, the cell wall persists which shows that cell wall is
a. Living b. Non-living c.
Rigid d. Soft
91. Cell wall is
composed of:
a. Primary wall b. Secondary wall c. Middle lamella d. All a, b, c
92. The middle
lamella is first to be formed in between
a. Primary walls b. Secondary walls c. Tertiary walls d. Quaternary walls
93. In primary
wall cellulose molecules show a
a. Crisscross arrangement b. Zigzag arrangement c. Both a & b d. Parallel arrangement
94. A true wall
that develops in newly growing cells is:
a. Primary wall b. Secondary wall c. Middle lamella d. All a, b, c
95. Chemically
secondary wall is composed of:
a. Inorganic salts b. Silica c. Waxes d.
All a, b, c
96. Prokaryotic
cell wall lacks
a. Cellulose b. Peptidoglycan c.
Murein d. Sacculus
97. The
strengthening material of prokaryotic cell wall is:
a. Peptidoglycan b. Murein c. Cellulose d. Both a & b
98. Fungal cell
wall contains
a. Pectin b. Silica c. Lignin d. Chitin
99. The free
floating cell organelles e.g. mitochondria move about in cytoplasm due to
cytoplasmic
a. Streaming movements b. Amoeboid movements
c. Waving movements d. Circular movements
100. The material present in endoplasmic
reticulum is separated from the cytoplasmic materials by the spherical or
tubular membraries called
a. Cristae b. Cisternae c. Both a & b d.
None
101. The rough
endoplasmic reticulum is involved in the synthesis of
a. Lipids b. Carbohydrates c.
Proteins d. Vitamins
102. The smooth endoplasmic reticulum helps in
metabolism number of different types of molecules particularly:
a. Lipids b. Carbohydrates c.
Proteins d. Vitamins
103. Ribosomes are
tiny Granules first studied in 1955 by:
a. De-Duve b. Schwann c.
August Weismann d. Palade
104. The ribosome’s
exist in two forms, either freely dispersed in cytoplasm or attached with
a. Rough endoplasmic reticulum b. Mitochondria
c. smooth endoplasmic reticulum d. Lysosomes
105. The attachment
of two units of ribosome is controlled by the presence of:
a. Ca++ b. Mg++ c.
Co++ d. Fe++
106. A group of
ribosomes attached to mRNA are known as
a. Peroxisomes b. Glyoxisomes c.
Polysomes d. Lysosomes
107. New ribosomes
are assembled in
a. Mitochcndria b. Nucleolus c. Cytoplasm d.
Nucleous
108. The factory of
ribosome is the nucleolus, while that of protein synthesis is the:
a. Peroxisomes b. Glyoxisomes c.
Ribosomes d. Lysosomes
109. The carbohydrates, lipids and proteins
synthesized by the endoplasmic reticulum are modified as glycolipid and
glycoprotein within
a. Golgi complex b.Llysosomes c. Peroxisomes d.
Glyoxisomes
110. The liver and
muscle appear filled with glycogen within membrane bound organelles in
a. Diabetes type II disease b. Tay-Sachs disease
c. Glycogenosis type II disease d. Hunter's disease
111. Accumulation
of lipids in brain cells lead to mental retardation and even
a. Bereavement b. Demise c. Physical disability d. Death
112. In 1965,
peroxisomes were isolated from liver cells and other tissues by:
a. De-Duve and co-workers b. DeDuve c. Palade d. LorenzOken
113. The enzymes of
glyoxylate cycle are located in the:
a. Peroxisomes b. Glyoxisomes c.
Ribosomes d. Lysosomes
114. In seeds rich.in lipids such as castor bean
and soya beans, glyoxisomes are the sites for breakdown of fatty acids to:
a. Malate b. Citrate c.
Fumarate d. Succinate
115. The plant
vacuole is the major contributor to the:
a. Diffusion b. Osmosis c.
Turgor d. Imbibition
116. Tubulin,
actin, myosin, tropomyosin etc., are the main proteins that are present in:
a. Cytoskeleton b. Centriole c. Cilia d.
Cytosol
117. Cilia,
flagella, basal bodies and centrioles are derived from special assemblies of:
a. Microfilaments b. Microtubules c. Intermediate filaments d.
None
118. Long,
unbranched, slender tubulin protein structures are:
a. Microfilaments b. Intermediate filaments c. Microtubules d. None
119. The two
centrioles are usually placed at angle to each other.
a. Acute b. Right c.
Obtuse d. None
120. Centrioles
play important role in the location of furrowing during cell division, and in
the formation of:
a. Cirri b. Pseudopodia c.
Cilia d. Flagella
121. The inner membrane of mitochondria forms
infoldings, called cristae, into the inner chamber called mitochondrial:
a. Stroma b. Milieu c.
Medium d. Matrix
122. Ribospmes and
DMA are also present in:
a. Mitochondria b. Golgi complex c. Endoplasmic reticulum d. Lysosomes
123. The spent
energy, which is in the form of ADP is regenerated by the mitochondria into
a. AMP b. ATP c.
ACP d. AGP
124. The main types
of plastids are
a. Chromoplasts b. Chloroplasts c. Leucoplasts d.
All a, b, c
125. Chlorophyll
molecule resembles the haem group of:
a. Myoglobin b. Haemoglobin c.
Immunoglobin d. Insulin
126. Under light microscope, chloroplasts appear
to be heterogeneous structures with small granules known as
A. Crumb b. Pellet c.
Grana d. Morsel
127. Under electron microscope, a chloroplast
shows three main components i.e., i) the envelope, ii) the stroma and Hi) the
a. Cytoskeleton b. Thalloid c. Ergot d.
Thylakoid
128. Each granum is
inter-connected with other by the non-green part called:
a. Intergranum b. Interseptum c. Connective d. Ligament
129*. colorless
plastside are called:
a. Chloroplasts b. Leucoplasts c. Both a & b d. None
130. Leucoplasts
are found in the underground parts of the plant and store
a. Water b. Oxygen c.
Glycogen d. Food
131. The shape of
nucleus may be
a. Spherical b. Irregular c.
Both a & b d. Elongated
132. Nucleus
contains chromatin network and soluble sap called:
a. Cytoplasm b. Nudeoplasm c. Protoplasm d. Nuclear sap
133. Nucleus
consists of nuclear membrane, nucleoli, nucleoplasm and
a. Chromosomes b. Centrosomes c. Glyoxisomes d.
Peroxisomes
134. Nucleus is
surrounded by a nuclear membrane which separates the nuclear material from the
a. Cell membrane b. Cytoplasm c. Cell wall d.
Mitochondria
135. The nuclear
membrane is actually a nuclear envelope composed
a. One membrane b. Two membranes c. Three membranes d. Four
membranes
136. The nuclear
pores allow the exchange of materials between the:
a. Nucleus & nucleoplasm b. Nucleus & mitochondria
c. Nucleus & cytoplasm d. nucleus & ER
137. In
differentiated cell such as erythrocytes 'the number of nuclear pores per
nucleus is only
a. 3 b.
5 c. 5 d.
Both a, b
138. Nucleolus is a
darkly stained body within the:
a. Nucleus b. Lysosomes c. Peroxisomes d. Glyoxisomes
139. The ribosomal
RNA (rRNA) is synthesized and stored in: (LB-2007)
a. Nucleus b. Nucleolus c. Nucleoplasm d. Mitochondria
140. It is the
nucleolus, where fibosomes are assembled and are then exported to the cytoplasm
via
a. Nuclear holes b. Nuclear stoma c. Nuclear pores d. Nuclear apertures
141. During cell
division chromatin material is converted into darkly stained thread like
structures known as:
a. Hyphae b. Flagella c.
Chromatids d. Chromosomes
142. Under a compound
microscope, chromosomes appear to be made of:
a. Arms & centromeres b. Arms & legs c. Arms & chromatids d. Legs
& centrpmeres
143. Centromere is
the place on the chromosome where during cell division are attached:
a. Muscle fibers b. Spindle fibers c. Nerve fibers d. Protein fibers
144. Each chromosome consists of two identical
chromatids at the beginning of cell division which are held together at:
a. Myomere b. Centrosome c. Centromere d. Centruple
145. The number of
chromosomes in all individuals of the same species remaips constant:
a. Generation after generation b. Individual-after individual
c. Organism after organism d. Population after population
146. In man, each
cell contains 46:
a. Ribosornes b. Chromosomes c. Peroxisomes d. Lysosomes
147. in frog each
cell has:
a. 6 chromosomes b. 16 chromosomes c. 26 chromosomes d. 46chromosomes
148. There are 48
chromosomes in
a. Champazee b. Potato c. Man d. Both a, b
149. There are 16
chromosomes in:
a. Onion b. Pea c.
Garlic d. Potato
150. There are 14
chromosomes in:
a. Onion b. Garden
pea c. Maize d.
Oat
151. The number of
chromosomes in normal body cells
a. Diploid b. Haploid c.
2n d. Both a & c
152. Haploid
chromosome number (n) is present in
a. Germ cells b.
Gametes c. Both a & b d. Somatic cells
153. Human sperms
and eggs have chromosomes
a. 13 b. 23 c.
33 d. 43
154. Sperms and
eggs of Drosophila have chromosomes
a. 4 b.
8 c. 16 d.
32
155. Many of the membrane bound structures e.g.,
mitochondria, endoplasmic reticulum, Golgi bodies and chloroplasts etc., are
absent in
a. Prokaryotic cell b. Bacteria c. Eukaryotie
cell d. Both a & b
156. Nuclear
membrane is absent, therefore, prokaryotic cell has no distinct:
a. Mitochondria b. Ribosomes c. Nucleous d.
Lysosomes
157. In
prokaryotes, mitosis is missing and cell divides by
a. Fission b. Budding c.
Fragmentation d. Conjugation
158. The cell wall of prokaryotic cell is
composed of polysaccharide chains bounded' covalently to shorter chains of
amino acids forming:
a. Peptidoglycan b. Murein c. Both a & b d. Lipoprotein
159. The entire
cell wall is often regarded as a single huge molecule or molecular complex
called:
a. Peptidoglycan b. Murein c. Sacculus d.
Lipoprotein
160. Resolution
power of a typical microscope is: (GB-2004)
a. 1.0 urn b. 2.0um c.
300 X d. 2-4 Angstrom
161. Stroma is
fluid in the chloroplast which surrounds: (GB-2005)
a. Granum b. Intergranum c. Thylakoids d. Both a & b
162. Which of the following processes causes
substances to move across the membranes without the expenditure of cellular
energy:
a. Diffusion b. Active
transport c. Endocytosis d. None
163. Tay sachs disease results due to accumulation in brain
cells: (MB-2008)
a. Mg++ ions b. Glucose c.
Lipids d. Proteins
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