Cell : The Unit Of Life Questions

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Cell : The Unit Of Life Questions

List of cell : the unit of life Questions

Question NoQuestionsClass
1The unit of measurement used for
expressing dimension (size) of cells is
A. Centimeter
B. Millimeter
c. Micrometer
D. Meter
11
2Cell cycle was divided into four stages
i.e. ( G_{1}, S, G_{2}, M ) by
A. W. Flemming
B. Strass burger
c. Howard and Pelc
D. Farmer
11
3Fill in the blanks with appropriate
words.
Cell organelle rich in acid phosphatase and other hydrolytic enzymes is
11
4Where Chlorophyll II pigments are present in the Chloroplast? What term is used for core of cilium and flagellum?11
5Which of the following is not a cell?
A. Red Blood Corpuscle (RBC)
B. Bacterium
c. spermatozoa
D. Virus
11
6What is a cell?11
7serve as the intracellular highway
for transport.
A. Endoplasmic reticulum
B. Golgi apparatus
c. Cell membrane
D. Mitochondria
11
8Which of the following is absent in the DNA of bacterial prokaryotes?
A. Histone proteins
B. Acidic proteins
c. Double stranded nature
D. None of the above
11
9Assertion
Cell wall is not found in an animal cell.
Reason
Animal cells are covered by cell
membrane.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion.
B. Both Assertion and Reason are correct but Reason is
not the correct explanation for Assertion.
C. Assertion is correct but Reason is incorrect.
D. Both Assertion and Reason are incorrect.
11
10Who discovered fluid mosaic model of
plasma membrane?
11
11Which of the following is a rapid type of absorption?
A. Passive absorption
B. Active absorption
c. Salt absorption
D. Root absorption
11
12Function of nucleolus is to form
A. Lysosome
B. Specialized chromosome
c. Ribosome
D. spherosome
11
13Tonoplast is
A. Permeable membrane
B. Semi permeable membrane
C. Impermeable membrane
D. Selectively permeable membrane
11
14Do you think a cell can be called an
organism? Justify
11
15Cells are able to live and perform its functions due to the presence of
A. organelles
B. Lysosomes
c. Cell wall
D. Ribosomes
11
16Name the smallest cell and the largest
cell in the human.
11
17Conversion of green tomatoes into red
form involves
A. Formation of chromoplasts from chloroplasts
B. Destruction of chloroplasts and development of chromoplasts from leucoplasts
C. Formation of chromoplasts from proplastids
D. All of the above
11
18Why are all the cells of a multicellular
organism not similar to each other?
11
19Write about what a prokaryotic cell lacks?11
20Cells are limited in size by the
A. Rate at which substances needed by the cell can enter the cell through its surface
B. Amount of material the cell can collect itself
C. Rate at which the cell can manufacture the genetic information
D. Amount of cell membrane the cell can produce
11
21How many of the following organisms have nuclear membrane? Mycoplasma, Blue – green algae, Fungi, Bacillus, Yeast, Purple photosynthetic bacteria, E.coli, Chlamydomonas
( A cdot 4 )
B. 3
( c cdot 5 )
D.
11
22Which of the following cell surface differentiation is not likely to play a role in inter-cellular communication?
A. Desmosome
B. Gap junction
c. Tight junction
D. None of the above
11
23Describe with the help of a diagram the
structure of Golgi body and state its
function.
11
24Synthesis of cell wall material take
place in
A. Dictyosome
B. Mitochondria
c. Lysosome
D. E.R
11
25What is plasmalemma?11
26Which of the following is an important function attributed to lysosomes?
A. Bone restoration
B. Reabsorption in kidney and urinary bladder
c. scavenging of worn out cells
D. All of the above
11
27Which one of the following processes requires an input of energy?
A. Active transporttt
B. Diffusion
c. Facilitated diffusion
D. Osmosis
11
28According to an accepted model of plasma membrane, transport during ‘symport’ or ‘co-transport’ of sugar or amino acids through cell membrane is when
A. Nat ions move in both directions irrespective of concentration gradient
B. Nat ions moves in the direction of its concentration gradient.
c. ( mathrm{Na}^{+} ) ions moves against the direction of its concentration gradients.
D. No movement of Nat ions is involved.
11
29( mu m ) is
( A cdot 10^{-6} m )
B. ( 10^{-9} mathrm{m} )
( mathbf{C} cdot 10^{-10} mathrm{m} )
D. ( 10^{-3} mathrm{m} )
11
30Transpiration cohesion tension theory
operates in
A. Active absorption
B. Passive absorption
c. Active and passive absorption
D. None of the above
11
31How many chromosomes will be in cells of human, produced by meiosis?
A . 46
B. 69
( c cdot 23 )
D. 100
11
32The endoplasmic reticulum is mainly concerned with:
A. Proteolysis
B. Fatty acid synthesis
c. cholesterol synthesis
D. Peptide bond synthesis
11
33Which part of the cell stores nutrients?
A. Mitochondria
B. Vacuole
c. Ribosome
D. Oxysome
11
34Water entering root due to diffusion is a
part of
A. Endocytosis
B. Osmosis
c. Passive absorption
D. Active absorption
11
35Which is responsible for the formation of nucleolus?
A. SAT chromosome
B. Nuclear membrane
c. Endoplasmic reticulum
D. Ribosomes
11
36A cilium beats
A. Asymmetrically by sweeping action
B. Symmetrically by sweeping action
C. Symmetrically by undulatory action
D. Asymmetrically by undulatory action
11
37Name the largest bacterium species.11
38The smallest animal egg is that of
A . ostrich
B. Human female
c. Duck
D. Hen
11
39Short / Long answer type questions. How do neutral solutes move across the
plasm membrane ? Can the polar molecules also move across it in the
same way? If not, then how are these transported across the membrane?
11
40Jacob and Monad studied lactose
metabolism in E. Coli ad proposed
operon concept. Operon concept is applicable for?
A. All prokaryotes
B. All prokaryotes and some eukaryotes
c. All prokaryotes and all eukaryotes
D. All prokaryotes and some protozoans
11
41The principal protein of cilia and flagella is
A. Tubulin
B. Albumin
c. Globulin
D. Gliadin
11
42Which one of the following is a driving force for the process of passive absorption of water in roots?
A. The increase in imbibitional pressure in root cells
B. Root pressure
c. Activity of aquaporins
D. Transpiration in leaves
11
43Assertion
Chloroplast is a cell organelle.
Reason
An organelle is a distinct part of a cell
which has a particular structure and
function.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion.
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
C. Assertion is correct but Reason is incorrect.
D. Assertion is incorrect but Reason is correct.
11
44Who is the father of microscopy and microbiology?
A. Theophrastus
B. Janssen
c. Leeuwenhoek
D. Hooker
11
45In typical structure of the plasma membrane
a) The lipids are amphipathic.
b) Proteins are arranged
asymmetrically and shows flip flop
movement.
c) Extrinsic proteins are abundant towards cytoplasmic face.
A. All are correct
B. a, b is correct
( c . b, ) c is correct
D. a, cis correct
11
46Who first discovered nucleus in cell in
1831?
A. Robert Hooke
B. Robert Brown
c. Altmann
D. Swanson
11
47is polymorphic cell organelles.
A. Ribosome
B. Lysosome
c. chloroplast
D. Nucleus
11
48In prokaryotes, there are no membranebound organelles.
A. True
B. False
11
49SER and RER can be distinguished with
it’s presence in
A. Protein synthesising cells
B. Protein and lipid synthesising cells
c. carbohydrates and fat synthesising cells
D. Fat and protein synthesising cells
11
50Longest plant cells are
A. vessels
B. Trachieds
c. cotton fiber
D. Fibres of Ramie
11
51The metabolic activities of root cells are
the main cause of water absorption in
A. Passive absorption
B. Active absorption
c. Both passive and active absorption
D. None of the above
11
52Most of the cell organelles are derived from
A. Nucleus
B. Endoplasmic reticulum
c. Mitochondria
D. chloroplast
11
53Decreasing order concentration of
minerals inside cell is
A ( cdot mathrm{ca}^{+2}-mathrm{K}^{+}-mathrm{Na}^{+} )
B. ( k^{+}-C a^{+2}-N a^{+} )
c. ( kappa^{+}-N a^{+}-C a^{+} )
D. ( mathrm{Na}^{+}-mathrm{K}^{+}-mathrm{Ca}^{+2} )
11
54Golgi apparatus is specialized for all the following except:
A. Glycosylation of proteins
B. Secretion
c. Intracellular digestion
D. Formation of acrosome
11
55L – shaped chromosomes are called as
A. Sex chromosome
B. Acrocentric
c. Telocentric
D. Sub-metacentric
11
56is the key to increase the number of cells in a living being.
A. Metabolism
B. Growth
c. Cell division
D. Reproduction
11
57Cholesterol is a component found in the phospholipid bilayer of the cell
membrane and
A. Makes the membrane more permeable to watersoluble substances such as ions and monosaccharides
B. Maintains the fluidity of the cell membrane
C. Builds and maintains membrane channels
D. Dissolves in large quantities and travels through the bloodstream
11
58Name the chief constituent of cell wall.
A . Cellulose
B. Pectin
c. Lignin
D. Suberin
11
59Cyanobacteria are photosynthetic prokaryotes.Which of the following cell structures are absent in cyanobacteria?
I. Cell membrane
II. Nucleus
III. Ribosomes
A. I only
B. II only
c. ॥ only
D. I and II only
E. I and III only
11
60Which of the following is correct for the
given structure?
A. These are small structures which work like oars
B. It is covered with plasma membrane
C. Its core is called axoneme
D. All of these
11
61Any organism performed all the activities by single cell is called as
A. Multicellular
B. Unicellular
c. Acellular
D. Plants
11
62Cell is called as the structural and
functional units of life
because
A. All organisms are formed of cells.
B. All cells are biochemical reaction house
C. ATP is synthesized within cells.
D. All of the above
11
63Root cells do not play an active role in
the absorption of water in mechanism.
A. Osmotic absorption
B. Non-osmotic absorption
c. Active absorption
D. Passive absorption
11
64Cell membrane in Eukaryotes is?
A. Exclusively selective permeable
B. Mainly selective permeable with semi permeability
C. Mainly semi permeable with selective permeability
D. Selective & semi-permeability equally
11
65Prokaryotes reproduce by
A. Sexual
B. Asexual
C. Both A and B
D. They do not produce
11
66plate ( 1 ? )
Well water and nutrient agar
Well water and nutrient agar-antibiotic (tetracycline)
A. Bacteria 2 produces an antibiotic to which bacteria 1,3, and 4 are susceptible.
B. Bacteria 2 produces an antibiotic to which bacteria 4 is susceptible.
C. Bacteria 2 produces an antibiotic to which bacteria 1 and 4 is susceptible.
D. Bacteria 4 require a protein produced by bacteria 1.
E. Bacteria 4 require a protein produced by bacteria 3.
11
67Choose the correct answer from the
alternatives given

Whether a molecule can cross the
plasma membrane depends upon the
A. Size of the molecule
B. Shape of the molecule
c. charge of the molecule
D. All of these

11
68Chromosomes are composed of
A. DNA, RNA, histones, non-histones
B. DNA and histones
C. DNA and RNA
D. DNA, RNA and histones
11
69Peroxisomes are involved in the
synthesis of
A. Glucose
B. Fatty acids
c. Glycine and serine
D. Nucleotides
11
70The plasma membrane of animal cells
is elastic due to the presence of
A. Lipids
B. Carbohydrates
c. Proteins
D. water
11
71In the light of carrier concept, the transport of ion across the membrane
against concentration gradient is
A. Passive process
B. Non-osmotic process
c. osmotic process
D. Active process
11
72Carbohydrates are present in the
plasmalemma in the form of
A. Lignin
B. Cellulose
c. Hemicellulose
D. Phospholipids (glycolipids) and phosphoproteins (glycoproteins)
11
73What is the function of leucoplasts?
A. To store starch grains, oil drops and protein granules
B. To store nucleoprotein
C . To store glycoprotein
D. To synthesize glycogen
11
74The zone of exclusion is associated with
A. Golgi complex
B. Endoplasmic reticulum
c. Mitochondria
D. chloroplast
11
75Which of these cell organelles stores starch grains and oil drops?
A. Mitochondria
B. Leucoplast
c. chloroplast
D. Ribosome
11
7636. A cellulosic wall is found in
the cells of
(1) animals (2) bacteria
(3) fungi (4) plants
11
77State the main function of thylakoids.11
78Which plastid does not contain stored food material?
A. Elaioplasts
B. Aleuroplasts
c. Amyloplasts
D. chromoplasts
11
79Smooth E.R. of animal cell does not
synthesize
A. Cholesterol
B. Phospholipid
c. Saturated fatty acid
D. Unsaturated fatty acid
11
80Pigment free plastids are
A. Chloroplasts
B. Chromoplasts
c. Lysosomes
D. Leucoplasts
11
81What is passive and active uptake of ions? Give an account of the carrier
mediated uptake
11
82Cells of all living organisms have a nucleus.
A . True
B. False
11
83The amyloplasts look like
A. Proplastids
B. Elaioplast
c. Aleuroplast
D. chloroplast
11
84The Gram negative bacteria detect and respond to chemical in their surrounding by
A. Lipopolysaccharide
B. Muramic acid
c. Porins
D. volutin granules
E. Mesosomes
11
85Prokaryotic cells are characterised by
A. A distinct nuclear membrane
B. Distinct chromosomes
C. Absence of chromatin material
D. Absence of nuclear membrane
11
86Nucleolemma is a part of
A. Nuclear membrane
B. Nuclear reticulum
C. Nucleolus
D. Nucleoplasm
11
87Suicide bags of cells are
A. Endoplasmic reticulum
B. Lysosome
c. Golgi bodies
D. Vacuoles
11
88Choose the correct answers from the
alternatives given The prokaryotic genetic system contains:
A. either DNA or histones
B. DNA but no histones
c. neither DNA nor histones
D. DNA and histones
11
89The cell wall of fungi and bacteria contain
A. N-acetyl glucosamine
B. Glucosamine
c. Mannose
D. Cellulose
11
90Which of the following organelles work as cellular garbage disposal systems?
A. Endoplasmic reticulum
B. Golgi complex
c. Lysosomes
D. Mitochondria
11
91Chloroplast and other specialized plastids are present in animal cells?
A. True
B. False
11
92Cells are the basic structural units of
living organisms’. Explain.
11
93Bright colour of petals is due to the
presence of
A. Chloroplast
B. Anthocyanin
c. Elaioplast
D. Amyloplast
11
94Cells are composed of highly independent and randomly interacting components.
A. True
B. False
11
95Differentiate between:
Euchromatin and heterochromatin
11
96Select the mis-matched pair.
A. Rudolf Virchow – Omnis cellula-e-zcellula
B. Robert Brown – Discovered the nucleus
C. Leeuwenhoek – First described a live cell
D. Schwann and Schleiden – Modified and gave final shape to cell theory
11
97Desmosomes are concerned with
A. Cell division
B. Cellular excretion
c. cytolysis
D. Cell adherence
11
98The largest subunit of prokaryotic ribosomes is
A . 30s
B. 40S
( c .50 s )
D. 60 s
11
99Integral proteins are embedded in the phospholipid bilayer, and also called transmembrane proteins. Often times these integral proteins serve as channels through which molecules move across the cell membrane.
Proteins embedded in the interior of the
bilayer of the membrane are ( ldots ). and
are made up of non-polar
A. Nonpolar, Nucleic acids
B. Polar, Amino acids
c. Hydrophilic, Nucleic acids
D. Hydrophobic, Amino acids
11
100All mineral salts absorbed in cells are
A. Ions
B. Atoms
c. Molecule
D. All of the above
11
101Select the incorrect statement w.r.t
prokaryotic cells
A. Cytoplasm lacks membrane bound organelles
B. Sap vacuoles are absent
C. Chromosome possesses acidic protein i.e. polyamine
D. Lack streaming movement of cytoplasm
E. None of the above
11
102Organismal theory was proposed by
A. Van Mohl
B. sachs.
c. Virchow.
D. Haberlandt
11
103Find out a suitable term from the
following for the various components of
cells.
A . Tissue
B. Cell organelles
c. chromosomes
D. Genes
11
104ions are absorbed from the soil by
A. Passive transport
B. Active transportt
( c . ) Both (1) & (2)
D. Imbibition
11
105A semipermeable membrane allows the diffusion of
A. Solutes
B. Solvent
c. Both solvent and solutes
D. None of above
11
106Gram positive bacteria differ from gram negative bacteria in the structure of
their
A. Nucleoid
B. Cytoplasm
c. Cell wall
D. Ribosomes
11
107Which of the following is correct?
A. Cells of all living organisms have a nucleus.
B. Both animal and plant cells have a well defined cell wall.
C. In prokaryotes there are no membrane bound organelles.
D. Cells are formed de novo from abiotic materials.
11
108Describe the fluid mosaic model of
plasma membrane.
11
109Passive absorption of water from the soil is mainly affected by
A. Tissue organisation of root
B. Sucking power of root hairs
c. Tension of cell sap due to transpiration
D. osmotic concentration of cell sap
11
110Many molecules can move briefly across the membrane without any
requirement of energy and special membrane proteins. This is called
A. Active transporttt
B. Passive transport
c. Facilitated diffusion
D. All of these
11
111Prokaryotic cells are ………… organism.11
112The green plastids contain
A. Carotenoids
B. xanthophyll
c. chlorophyll
D. All the above
11
113What is the role of cholesterol in the cell
membrane?
A. It functions in joining adjacent cells together.
B. It functions in recognizing foreign cells.
c. It increases the rate of transport of ions across the membrane
D. It stabilizes the cell membrane.
11
114Plant cells are rigid due to the presence of
A. Cell membrane
B. Cell wall
c. cytoskeleton
D. chloroplasts
E. Centrioles
11
115Choose the correct answer from the
alternatives given

The sodium potassium pump moves sodium and potassium ions across the plasma membrane by
A. Facilitated transport
B. Active transportt
c. cotransport
D. Endocytosis

11
116Match column I with column II and
select the correct option from the codes
given below.
Column I
A. Suicide bag of the ( quad ) column ( | ) cell
1. Mitochondria
B. Powerhouse of the
2. Ribosome cell
3. Lysosome
C. Protein factory of the
4. Endoplasmic cell ( quad ) reticulum
D. Kitchen of the cell
E. Circulatory system of
5. Chloroplast
the cell
A. A- ( 3, ) B- ( 1, ) C- ( 2, ) D- ( 5, ) E- 4
B. A- 3, B-1, C- 5, D-2, E-4
c. ( A-3, B-2, C-1, D-5, E-4 )
D. A-1,B-3,C-2,D-5,E-4
11
117What is the significance of pores present
on the nuclear membrane?
11
118Which of the following is not correct?
A. Robert Brown discovered the cell.
B. Schleiden and Schwann formulated the cell theory.
C. Virchow explained that the cells are formed from preexisting cells.
D. A unicellular organism carries out its activities within a single cell
11
119The single-celled organisms are called11
120Which of the given structures of cyanobacteria has functional resemblance with the chloroplast?
A. Lamellasome
B. Plasma membrane
c. Ribosome
D. Chromatophore
11
121Short / Long answer type questions. Are plasma membranes the outer
boundaries of all cells? Explain
11
122The only one cell organelle seen in prokaryotic cell is
A. Mitochondria
B. Plastids
c. Ribosomes
D. Lysosomes
11
123Flattened sacs of Golgi are separated from each other by a space which is
( A cdot 13 hat{A} )
B. 130 ( dot{A} )
c. 125 ,
D. 300 ( vec{A} )
11
124Stack of thylakoids is known as:
A. Granum
B. Grana
c. Intergranum membrane
D. cristae
11
125Which of the following labilisers found on membrane of lysosome?
A. Cortisone and cortisol
B. Cholesterol and heparin
c. Testosterone and progesterone
D. cholesterol and progesterone
11
126In prokaryotes, mitochondria are absent. Krebs cycle occurs over
A. Cytoplasm
B. Nucleoid
c. Ribosome
D. Plasma membrane
11
127Identify the unicellular organism.
A . Algae
B. Amoeba
c. snail
D. Ant
11
128The cell division in blue green algae similar to that in
A. Bacteria
B. Brown algae
c. Green algae
D. Higher plants
11
129Identify the differentiate between leucoplasts and chromoplasts.
A. Leucoplasts- colourless plastids, chromoplasts coloured plastids
B. Leucoplasts- coloured plastids, chromoplasts colourless plastids
c. Leucoplasts- help in storage of food, chromoplasts help in photosynthesis, pollination
D. Both A and C
11
130The shape of the cell is related to
A. the habitat of the organism
B. the body size of the organism
C. the function it performs
D. the number of cells in an organism
11
131The absorption of water due to expenditure of energy is called as
A. Active absorption
B. Non-smotic absorption
c. Passive absorption
D. All of the above
11
132Starch is stored in
A. Chromoplasts
B. Amyloplasts
c. chloroplasts
D. Both B and C
11
133One of the following is an exception to the ‘cell theory’.
A. Bacteria
B. Fungi
c. virus
D. Lichens
11
134Carrier ions like ( mathrm{Na}^{+} ) facilitate the
absorption of substances like
A. Fructose and some amino acids
B. Amino acids and glucose
c. Glucose and fatty acids
D. Fatty acids and glycerol
11
135What made the study of cells possible?
A. Discovery of microorganism
B. Division of offsprings
c. Evolution of generation
D. Invention of microscope
11
136The highest concentration of chloroplast is present in
A. Stomata
B. Epidermal layer
c. Palisade mesophyll
D. Phloem
E. cuticle
11
137Passive absorption of water from the soil by the root is mainly effected by
A. Typical tissue organisation
B. Respiratory activity of root
c. Tension on cell sap due to transpiration
D. None of the above
11
138Osmotic theory for active absorption of
water was given by
A. Thimann
B. O. Hertig
c. Atkins and Priestly
D. J. C. Bose
11
139DNA is mainly found in
A. Nucleus only
B. Nucleus and cytoplasm
c. Cytoplasm only
D. None of the above
11
140Describe the role played by protein pumps during active transport in plants.11
141Prokaryotes are characterized by
A. A true nucleus with double layered nuclear membrane is absent.
B. Well developed nucleus with double layered nuclear membrane present.
C. Presence of cell wall made of mucopolysaccharides and absence of cell organelles like mitochondria and chloroplasts.
D. Autotrophic in nature and only DNA is present.
11
142toppr
Q Type your question
Chloroplasts
No
No
The rate of growth of the three cell types
was measured by growing them in
separate cultures in a plenty of oxygen and nutrient conditions. There was no
oxygen available to the cells at time 1
According to the table, cell type A is
A. Fungi
B. Plant
c. Bacteria
D. Animal
E . Protist
11
143Which of the following statements concludes that ruminants are
multicellular animals?
A. They have specialized organs for digestion
B. They can reproduce
c. They have lungs for breathing
D. Both A and C
11
144Discuss basic characteristics of
Gram +ve and Gram -ve bacteria.
11
145Pericarp and petals contain
A. Chloroplast
B. Chromoplast
c. Leucoplast
D. Etioplast
11
146Solutes are absorbed by a plant cell through
A. Osmosis
B. Diffusion
c. Active absorption
D. Passive absorption
11
147Fill in the blanks with approprite words.
The cell wall of Gram -ve bacteria is
comparatively less ( ldots ldots . . . . ) than Gram +ve bacteria
11
148Prokaryotic cell is one, which does not
have
A. Proper nucleus
B. Endoplasmic reticulum and mitochondria
C. Proper nucleus and most of cell organelles
D. Cell wall
11
149Name the compounds which give fluidity and functional specificity to biomembranes.
A. Fluidity by proteins, functional specificity by lipids
B. Fluidity by lipids, functional specificity by proteins
C. Fluidity by sugar, functional specificity by proteins
D. Fluidity by sugar, functional specificity by lipids
11
150Unicellular organisms evolved earlier than multicellular organisms around 3.5 thousand million years ago. Justify11
151Arm ratio in metacentric condition is
A . 1:
B. 1:
( c cdot 1: 3 )
D. 2:
11
152When water enters in root due to
diffusion, it is termed as
A. Osmosis
B. Endocytosis
c. Active absorption
D. Passive absorption
11
153In human being, secondary constrictions II are found on
A. ( x ) chromosome
B. Y chromosome
c. ( 13,14,15,21, ) 22 chromosome
D. 1,10,13,16 and ( Y ) chromosome
11
154All bacteria have
A. Mesosomes
B. Mitochondria
C . Chloroplast
D. Golgi complex
11
155Correct sequence of layers of bacterial
cell envelope from outward to inward is
A. Cell wall ( rightarrow ) Glycocalyx ( rightarrow ) Cell membrane
B. Cell membrane ( rightarrow ) Glycocalyx ( rightarrow ) Cell wall
c. Glycocalyx ( rightarrow ) Cellwall ( rightarrow ) Cell membrane
D. Glycocalyx ( rightarrow ) Cell membrane ( rightarrow ) Cell wall
11
156The central mineral element seen in
chlorophyll molecule is
A. Iron
B. Magnesium
c. Manganese
D. Sulphur
11
157Active transport is characterized by
A. Requires special membrane proteins
B. Highly selective
C . Requires energy
D. All of the above
11
158Tubulin binds colchicine and which of
the following, at different binding sites?
A. Vincristin
B. Vinblastin
c. Actin
D. All the above
11
159Auxospores are formed in the life cycle
of diatoms these structure are
A. Vegetuative cells with ploidy level
B. Asexual spores with ploidy level N
c. Statosspores with 2N ploidy Level
D. Sexual spores with ploidy level ( 2 N )
11
160Leucoplasts are present in
A. Green cells
B. Pigmented cells other than green
C. Non pigmented cells
D. Both A and B
11
161Prokaryotes are
A. Unicellular
B. Multicellular
C. Both A and B
D. None of the above
11
162Many cells function properly and divide
mitotically even though they do not have
A. Plasma membrane
B. Cytoskeleton
c. Mitochondria
D. Plastids
11
163How is a prokaryotic cell different from a eukaryotic cell?11
164Very short answer type. What is the function/role of bulliform
cells in grasses?
11
165Which of the following represents the features of lysosomes?
A. A lower pH than the cytoplasm
B. Reduced hydrolase activity
c. Double membrane envelope
D. All of these
11
166Beetroot is pinkish-red in color which is
due to
A. Chlorophyll
B. Betanin
c. cartenoids
D. Heamocyanine
11
167The smallest human cell is
A. Erythrocyte
B. Kidney cell
C. Liver cell
D. sperm
11
168Generally, smaller the cell
A. The larger the nuclei.
B. The smaller the nuclei.
C. It will be metabolically more active
D. It will be metabolically less active.
11
169Assertion
Bacterial cell wall is characterised by
having mucopolysaccharidies.
Reason
Acetylmuramic acid is an example of mucopolysaccharide.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct.
11
170Select the wrong statement with respect to the structure of a plant cell
A. Cellulosic cell wall is present inside the cell membrane
B. Centrioles are usually absent
C. A large central vacuole is present
D. Golgi apparatus is formed of a number of unconnected units called dictyosomes
11
17149. The animal who can consume
more salt among the following is
(1) Sheep (2) Camel
(3) Donkey (4) Dog
11
172The terms active water absorption and passive water absorption were given by
A. Renner
B. Atkins
c. Priestley
D. Kramer
11
173are the non-living
components of the cell.
A. Lysosomes
B. Vacuoles
c. Nuclei
D. Golgi bodies
11
174Which of the following is an energydependent process?
A. Facilitated diffusion
B. Active transportt
c. Endosmosis
D. Exosmosis
11
175Explain the structure of the plasma membrane as proposed by singer and Nicolson ( (1972), ) with a diagram11
176Active absorption is affected by:
A. Osmotic concentration
B. Associate tissue structures
c. Transpiration
D. sucking capacity of root hair
11
177Movement of minerals in plant roots
through diffusion is
A. Endosmosis
B. Osmosis
c. Active absorption
D. Passive absorption
11
178What is the difference between
unicellular and multi cellularlar
organisms in organisation of their cells?
11
179Which of the following type of movement are seen in human body?
A. Amoeboid
B. Ciliary
C. Flagellar
D. Muscular
( A cdot A, b ) and ( c )
B. ( A, b ) and ( d )
C. ( A, ) c and ( d )
D. ( A, b, ) c and ( d )
11
180Which of the following is the requirement for active absorption?
A. Evolution of heat
B. Availability of light and heat
c. Presence of light
D. Availability of energy
11
181Cell is the basic unit of life’. Explain the
statement.
11
182Small chromosomes which do not
produce any detectable phenotypic expression are termed as
A. Heterochromatic chromosomes
B. Supernumerary chromosomes
c. Nonsense chromosomes
D. Nucleoids
11
183The thylakoids occur inside
A. Mitochondria
B. Chloroplast
C . Golgi apparatus
D. Endoplasmic reticulum
11
184The most abundant lipid in cell membrane is
A. Phospholipid
B. Starch
c. oil
D. Sulpholipid
11
185A cell is the ( ldots ldots . . . ) and functional unit of
an organism.
A. Longest structural
B. Smallest structural
c. Biggest structural
D. Strongest structural
11
186Schleiden (1838) proposed cell to be structural and functional unit of life.
His idea was a/an
A. observation
B. Assumption.
c. Generalisation.
D. Hypothesis.
11
187Assertion
It is important that organism have cells.
Reason
A cell keeps its chemical composition
steady within its boundary.
A. Both Assertion and Reason are correct and Reason is
the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
11
188Most abundant lipid in cell membrane
is
A. sphingolipid
B. Glycolipid
c. Phospholipid
D. cholesterol
11
189The fluid mosaic model of plasma
membrane was given by
A. Robertson
B. Robert Hooke
c. singer and Nicholson
D. Gorter and Grende
11

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