NEET Biology Chapter Wise Mock Test – Unit Test 2
1. Which of the following is a corm?
(a) Maize
(b) Solarium (potato)
(c) Zingiber (ginger)
(d) Amorphophallus (zimikand)
2. Transpiration is reduced in Opuntia by the formation of
(a) nodes
(b) internodes
(c) flat and fleshy structure
(d) spines/scales
3. Which of the following is an example of scaly, imbricate bulb?
(a) Amorphophallus (zimikand)
(b) Allium sativum (garlic)
(c) Allium cepa (onion)
(d) Crocus sativus (saffron)
4. Identify type of vascular bundle with respect to A, B and C fjgure.
(a) A-Conjoint closed, B-Conjoint open, C-Radial
(b) A-Radial, B-Conjoint open, C-Conjoint closed
(c) A-Radial, B-Conjoint closed, C-Conjoint open
(d) A-Conjoint open, B-Conjoint closed, C-Radial
5. Opposite superposed arrangement of leaves is seen in
(a) mustard
(b) mango
(c) tobacco
(d) Rangoon creeper
6. Of the following organelles associated with the endomembrane system, which group is primarily involved in synthesising molecules needed by the cell?
(a) Lysosome, vacuole and ribosome
(b) Ribosome, rough endoplasmic reticulum and smooth endoplasmic reticulum
(c) Vacuole, rough endoplasmic reticulum and smooth endoplasmic reticulum
(d) Smooth endoplasmic reticulum, ribosome and vacuole
7. A researcher made an interesting observation about a protein made by the rough endoplasmic reticulum and eventually used to build a cell’s plasma membrane. The proteins in the plasma membrane was actually slightly different from the protein made in the ER. The protein was probably altered in the
(a) Golgi apparatus
(b) mitochondria
(c) plasma membrane
(d) transport vesicles
8. Eichhornia is an example of
(a) runner
(b) offset
(c) stolon
(d) sucker
9. Which of the following tissues is ectodermal in origin?
(a) Muscles
(b) Nervous tissue
(c) Endocrine tissue
(d) Blood
10. Organelle connected with protein synthesis is
(a) chloroplast
(b) ribosome
(c) pyrenoid
(d) mitochondrion
11. Enzymes are basically made up of
(a) nucleic acids
(b) proteins
(c) fats
(d) vitamins
12. Fill in the blanks.
ADP + Pi -> ATP is an … A … reactions. ATP -»ADP + Pi is an …6… reactions and the conversion of ADP + Pi to ATP …C… energy.
Here A, B and C refers to
(a) A- endergonic; B-exergonic; C-requires
(b) A-exergonic; B-endergonic; C-requires
(c) A-exergonic; B-endergonic; C-does not require
(d) A-exergonic; B-endergonic; C-releases
13. Basal bodies are most closely associated with which one of the following cell components?
(a) Nucleus
(b) Mitochondria
(c) Cilia
(d) Central vacuole
14. The observation that chloroplasts and mitochondria contain their own DNA and synthesise some of the proteins that function in these organelles suggests that chloroplasts and mitochondria
(a) are produced by the nucleus of the cell
(b) must divide each time the cell containing them divides
(c) are part of the endomembrane system
(d) are involved in energy metabolism of the cell
15. Which of the following structures are generally found in both plant cells and animal cells?
(a) Cell walls
(b) Chloroplasts
(c) Central vacuoles
(d) Mitochondria
16. Which type of cell is most tikely to have the most mitochondria?
(a) Muscle cells in the legs of a Marathon runner
(b) Photosynthetic cells in the leaves of a tree
(c) Bacterial cells that are growing on sugars
(d) Inactive yeast cells that are stored for future use
17. Which of the following is not a true statement about chloroplasts and mitochondria?
(a) Each contains a small amount of DNA
(b) Both are components of the endomembrane system
(c) Both are composed of two separate membranes
(d) Each organelle synthesises some of its own proteins
18. Which one of the following organelles is unlikely to show enhanced abundance in the pancreatic cells that secrete large amount of digestive enzymes?
(a) Rough endoplasmic reticulum
(b) Free cytoplasmic ribosomes
(c) Golgi apparatus
(d) Transport vesicles
19. Consider a protein that is made in the rough endoplasmic reticulum. You observe that when the synthesis of the protein is completed, the protein is located in the ER membrane. Where else in the cell might this protein be found?
(a) In the aqueous interior of a lysosome functioning as a digestive enzyme
(b) In the cytoplasm, functioning as an enzyme in carbohydrate synthesis
(c) Embedded in the plasma membrane functioning in the transport of molecules into the cell
(d) In the internal space of the Golgi apparatus, being modified before the protein is excreted
20. Which of the following sequences represents the order, in which, a protein made in the rough endoplasmic reticulum might move through the endomembrane system?
(a) Golgi apparatus
(b) Golgi apparatus
(c) Plasma membrane
(d) Nuclear envelope
21. A homopolymer has only one type of building block called monomer repeated ‘n’ number of times. A heteropolymer has more than one type of monomer. Proteins are heteropolymers made of amino acids. While a nucleic acid like DNA or RNA is made of only 4 types of nucleotide monomers, proteins are made of
(a) 20 types of monomers
(b) 40 types of monomers
(c) 3 types of monomers
(d) only one type of monomer
22. Which one of the following does not match?
(a) Bulb— Allium cepa
(b) Phylloclade— Opuntia
(c) Cladode— Asparagus
(d) Bulbils— Euphorbia
23. Select the correct statement.
(a) Outer nodes are regions on stem, where leaves attach
(b) The growing apex of the stem is covered by apical bud
(c) The narrow zone surrounding the root is called root cap
(d) Haustoria of Cuscuta contain chlorophyll
24. Match the following columns.
Codes
A B C D A B C D
(a) 12 3 4 (b) 5 4 2 1
(c) 4 5 12 (d) 5 2 3 1
25. Identify the correctly matched pair.
(a) Agave (century plant) — Cladode
(b) Asparagus — Bulbils
(c) Opuntia — Phylloclade
(d) Ruscus — Bulb
26. Which of the following is positively geotropic?
(a) Stem
(b) Root
(c) Leaf
(d) Flower
27. Which of the stipule type does not match with example of plant?
(a) Foliaceous — Sweet pea
(b) Free lateral — Hibiscus
(c) Interpetiolar — Gardenia
(d) Adnate — Zizyphus
28. Proteins perform many physiological functions. For example, some functions as enzymes. One of the following represents an additional function that some proteins discharge.
(a) Antibiotics
(b) Pigment conferring colour to skin
(c) Pigments making colours of flowers
(d) Flormones
29. Axillary bud is modified into a tendril in
(a) Duranta
(b) Smilax
(c) Polygonum
(d) Passiflora
30. Identify the plant in which the leaves are arranged in a opposite decussate manner
(a) Alstonia (devil tree)
(b) China rose
(c) Sunflower
(d) Azadirachta
31. Chloroplasts and mitochondria are thought to be of prokaryotic origin. One piece of evidence that supports this hypothesis is that these organelles contain prokaryotic like ribosomes. These ribosomes are probably most similar to pbosomes found
(a) free in the cytoplasm of eukaryotes
(b) on the rough ER
(c) Both (a) and (b)
(d) in bacterial cells
32. A plant was grown in a test-tube containing radioactive nucleotides, the molecules from which DNA is built. Later examination of dividing cells in the plant showed the majority of the radioactivity to be concentrated in the
(a) lysosome
(b) smooth endoplasmic reticulum
(c) central vacuole
(d) nucleus
33. Enzymes are biocatalysts. They catalyse biochemical reactions. In general they reduce activation energy of reactions. Many physico-chemical processes are enzyme mediated. Some examples of enzyme mediated reactions are given below. Choose the wrong entry.
(a) Dissolving C02 in water
(b) Untwining the’two strands of DNA
(c) Hydrolysis of sucrose
(d) Formation of peptide bond
34. You would expect a cell with an extensive Golgi apparatus to
(a) make a lot of ATP
(b) secrete a lot of protein
(c) move rapidly
(d) perform photosynthesis
35. Which of the following statements is not true for plasma membrane?
(a) It is present in both plant and animal cell
(b) Lipid is present as a bilayer in it
(c) Proteins are present integrated as well as loosely associated with the lipid bilayer
(d) Carbohydrate is never found in it
36. Which of the following is not a characteristic of mitochondria?
(a) Mitochondria are involved in energy metabolism
(b) Mitochondria contain DNA and ribosomes
(c) Mitochondria are independent of the endomembrane system
(d) None of the above
37. Which statement about the cytoskeleton is incorrect?
(a) Microfilaments are chains of proteins that resist . stretching
(b) Intermediate filaments are more permanent structures in cells compared to microfilaments and microtubules
(c) Components of the cytoskeleton are often involved with movement of organelles within the cytoplasm
(d) Plant cells lack a cytoskeleton because they have a rigid cell wall
38. Which of the following organelles might be found inside other organelles?
(a) Nucleolus
(b) Mitochondria
(c) Ribosomes
(d) Transport vesicles
39. Where would you expect to find proteins involved with movement of structures within a cell?
(a) Muscles
(b) Cytoskeleton
(c) Cell wall
(d) Plasma membrane
40. Select one which is not true for ribosome?
(a) Made of two subunits ,
(b) Form polysome
(c) May attach to mRNA
(d) Have no role in protein synthesis
41. Identify A, B, C and D in the given figure of dorsal view of earthworm’s body and choose the correct combination of option given below.
(a) A-Setae, B—Clitellum, C-Genital papillae, D-Anus
(b) A-Peristomium, B-Cilium, C-Male genital aperture, D-Base
(c) A-Prostomium, B-Metameres, C-Clitellum, D-Anus
(d) A-Annuli, B-Grooves, C-Metameres, D-Anus
42. Which of the following dyes is best suited for staining chromosomes?
(a) Basic Fuchsin
(b) Safranin
(c) Methylene blue
(d) Carmine
43. Which one of these is not a eukaryote?
(a) Euglena
(b) Anabaena
(c) Spirogyra
(d) Agaricus
44. Cambium produces growth in
(a) branches
(b) girth
(c) pitch
(d) cortex
45. Which of the following cellular processes characteristic is not related to the cytoskeleton?
(a) Movement of the chromosomes during cell division
(b) Movement of cilia or flagella
(c) Contraction of muscle cells
(d) None of the above
46. Chromosome carrying centromeres at one end is
(a) metacentric
(b) submetacentric
(c) acrocentric
(d) telocentric
47. The most widely distributed tissue of vertebrate body is
(a) epithelial
(b) nervous
(c) muscular
(d) connective
48.Cork cambium is also called
(a) phelloderm
(b) phellem
(c) periderm
(d) phellogen
49. Assertion In monocot stem lysigenous cavity is present.
Reason It is formed by disintegration of protoxylem element.
(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
(c) If Assertion is true, but Reason is false.
(d) If both Assertion and Reason are false.
50. Tyloses are thickenings seen in
(a) ray parenchyma
(b) collenchyma
(c) phloem cells
(d) ray parenchyma and xylem cells
51. Identify the incorrect statement.
(a) lateral buds of stem give rise to flower
(b) Ipomoea has reproductive roots
(c) the spongy tissue of epiphytic root is called velamen
(d) floating roots of Jussiaea contain chlorophyll
52. Identify the correctly matched pair.
(a) Turmeric — Tuber
(b) Potato — Rhizome
(c) Onion — Tunicated bulb
(d) Helianthus tuberosis — Imbricate bulb
53. GH Shull observed breeding depression of plant. Miller and Letham isolated a hormone from the immature seeds of that plant. Which of the following characters is not true with that plant?
(a) Atactostelic condition of stem
(b) Bundle sheath in leaf
(c) Chromosomal number of endospermous cell is 30
(d) Medulla is absent in root
54. Which of the following statements are true?
I. If the stem is joined with solid nodes and hollow internodes, it is called caudex.
II. In tridax, the stem is decumbent.
III. Corm is a condensed form of rhizome growing more or less in vertical direction.
IV. Sucker is an underground modification of stem.
V. Biparous type of cymose branching is seen is Saraca. Choose the correct statement.
(a) I, IV and V (b) II and III
(c) II, III and V (d) III and IV
55. Identify the correctly matched pair
(a) Offset — Mint
(b) Stolon — Pistia
(c) Runner — Jasmine
(d) Sucker — Chrysanthemum
56. The number of ends in a glycogen molecule would be
(a) equal to the number of branches plus one
(b) equal to the number of branch points
(c) one
(d) two, one on the left side and another on the right side
57. On the basis of stipules, match the stipule type with example of a plant.
(a) Spinous — Smilax
(b) Tendrillar — Acacia
(c) Ochreate — Polygonum
(d) Adnate — Pisum
58. Phylloclades are found in
(a) xerophytes
(b)mesophytes
(c) hydrophytes
(d)terrestrial plants
59. Phyllode is present in
(a) Asparagus
(b) Euphorbia
(c) Australian acacia
(d) Opuntia
60. Identify the plant, in which vegetative propagation is possible by using tuber with a node (eye).
(a) Allium
(b) Solanum
(c) Zingiber
(d) Brassica
61. Spiral type of leaf arrangement is found in
(a) Oleander
(b) Rangoon creeper
(c) China rose
(d) Calotropis
62. Identify the plant, in which stipules occur in pairs at the base of leaflets.
(a) Gardenia
(b) Phaseolus
(c) Rose
(d) Hibiscus
63. Plants with soft stems are called
(a) saplings
(b) trees
(c) shrubs
(d) herbs
64. Which of the following resembles a leaf?
(a) Asparagus
(b) Opuntia
(c) Dioscorea
(d) Agave
65. Identify the plant, in which the lower surface of the nodes gives out slender adventitious roots.
(a) Solanum tuberosum
(b) Cyprus
(c) Curcuma tuberosum
(d) Lilium bulbifera
66. Identify the plant in which the terminal bud is modified into tendril
(a) passion flower
(b) citrus
(c) wood apple
(d) Vitis (grape)
67. Whorled arrangement of leaves is found in
(a) Calotropis
(b) Ocimum
(c) Tobacco
(d) Nerium (oleander)
68. Zingiber officinale is an example of
(a) perennial plant
(b) herb 79.
(c) shrub
(d) annual
69. Which of the following plant does not contain thorn?
(a) Vitis
(b) Wood apple
(c) Duranta
(d) Bougainvillea
70. Identify the correctly matched pair.
(a) Hibiscus rosa sinensis — Tree
(b) Dalbergia sissoo — Shrub
(c) Raphanus sativus — Herb
(d) Mangifera indica — Tree with adventitious aerial roots
71. Wild strawberry is an example of
(a) offset
(b) stolon
(c) sucker
(d) runner
72 Which of the following is (are) most likely to be involved in the process of producing proteins for a chloroplast or mitochondrion, neither of which is part of the endomembrane system?
(a) Transport vesicles
(b) Free cytoplasmic ribosomes
(c) Golgi apparatus
(d) Rough endoplasmic reticulum
73. Which of the following categories best describes the function of the rough endoplasmic reticulum?
(a) Breakdown of complex foods
(b) Energy processing
(c) Manufacturing
(d) Structural support of cells
74. Glycogen is a homopolymer made of
(a) glucose units
(b) galactose units
(c) ribose units
(d) amino acids
75. Which of the following are possible sites of protein synthesis in a typical eukaryotic cell?
(a) Cytoplasm
(b) Rough endoplasmic reticulum
(c) Mitochondria
(d) All of these
76. Dye injected into a plant cell might be able to enter an adjacent cell through a
(a) tight junction
(b) microtubule
(c) cell wall
(d) plasmodesmata
77. The surface cells that line the intestines are highly folded to optimise the uptake of molecules from the digestive tract. If these cells are treated with a drug that causes the breakdown of the cytoskeleton, which of the following would be most likely to occur?
(a) Adjacent cells would lose their contact with each other
(b) The surface of the cells would become more randomly shaped
(c) The uptake of substances from the intestines into the cells would be completely stopped
(d) The plfema membrane would rupture
78. Vascular bundles grow from
(a) protoderm
(b) periderm
(c) ground meristem
(d) procambium
79.Skeletal muscles are
(a) voluntary
(b) attached to bones of the skeletal system
(c) striated or striped
(d) All of the above
80.Desmosomes are connected with
(a) cell adherence
(b) cell excretion
(c) cell division
(d) cytolysis
81.Enzyme complex involved in alcoholic fermentation is
(a) urease
(b) zymase
(c) diastas
(d) dehydrogenase
82.Assertion Term ptyxis & vernation are not synonymous. Reason Vernation means the way, in which an individual leaf is folded in bud condition.
(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
(c) If Assertion is true, but Reason is false.
(d) If both Assertion and Reason are false.
83.Match the following columns
Codes
A B C D A B C D
(a) 4 5 2 1 (b) 3 2 1 5
(c) 12 5 4 (d) 4 1 5 2
84. Identify the components labelled A to E in the given diagram of cell membrane from the list 1 to 7 given along with it.
Components
1. Sugar 2. Protein
3, Lipid bilayer 4. Integral protein
5. Cytoplasm 6. Cell wall
7. External protein The correct component are
ABCDE ABODE
(a) 1 2 3 4 5 (b) 2 1 3 4 5
(c) 1 2 3 6 4 (d) 1 2 3 7 5
85. Quiescent centre theory was proposed by
(a) Schmidt
(b) Nageli
(c) Hanstein
(d) Clowes
86. Chemically enzymes are
(a) hydrocarbons
(b) amino acids
(c) fats
(d) proteins
87. Which of the following statements are incorrect in reference to the blood vascular system of the earthworm?
I. Blood vascular system is of open type.
II. Smaller blood vessels supply the gut, nerve cord and the body wall.
III. Blood glands are present on 6th, 7th and 8th segment.
IV. Blood cells are phagocytotic in nature.
(a) Only I
(b) I and IV
(c) I and III
(d) II and III
88. Fill up the blanks by choosing the correct combination of options.
I. …A..pairs of lateral heart are found in earthworm.
II. …B… is the excretory organ which occurs as segmentally arranged coiled tubules.
III. …C… segments of the earthworm are called forest of nephridia.
(a) A-Two, B-Alimentary canal, C-Typhlosole
(b) A-Four, B-Nephridia, C-Clitellar
(c) A-One, B-Gizzard, C-Peristomium
(d) A-Three, B-Clitellar, C-Typhlosole
89. The concept of cell lineage (cells arise from pre-existing cells only) was propounded by
(a) Purkinje
(b) Virchow
(c) Swammerdam
(d) Robert Hooke
90. Cilia and flagella move due to the interaction of the cytoskeleton with which of the following?
(a) Lysosome
(b) Mitochondria
(c) Nucleus
(d) Motor proteins
91. Which one of the following four membranes is most likely to have a lipid composition that is distinct from the other three?
(a) Endoplasmic reticulum
(b) Mitochondrial outer membrane
(c) Lysosome membrane
(d) Golgi apparatus
92. A protein that ultimately functions in the plasma membrane of a cell is most likely to have been synthesised.
(a) on ribosomes of the nuclear envelope
(b) on free cytoplasmic ribosomes
(c) in the rough endoplasmic reticulum
(d) in the mitochondria
93. What is a tonoplast?
(a) Outer membrane of mitochondria
(b) Inner membrane of chloroplast
(c) Membrane boundary of the vacuole of plant cells
(d) Cell membrane of a plant cell
94. Secondary meristem produces
(a) basal growth
(b) radial growth
(c) transverse growth
(d) vertical growth
95. The muscular tissues are derived from embryonic
(a) mesoderm
(b) endoderm
(c) ectoderm
(d) Both (b) and (c)
96. A common characteristic feature of plant sieve tube cells is
(a) the absence of mitochondria
(b) the presence of cell wall
(c) the presence of haemoglobin
(d) the absence of nucleus
97. According to histogen theory, epidermis is formed by
(a) dermatogen
(b) protoderm
(c) periblem
(d) plerome
98. White fibrous tissue consists of collagen fibres to form cords, which
(a) are called ligament
(b) connect muscle with bones
(c) are called tendons
(d) Both (b) and (c)
99. What is common between tendon and ligament?
(a) Both connect bone to bone
(b) Both are connective tissues
(c) Both connect bone to muscles
(d) Both are made up of striated muscles
100. Vessels of heartwood are blocked by
(a) hydathodes
(b) tyloses
(c) stomata
(d) latex
101. Analyse the following pairs and identify the correct option given below.
(a) II and III
(b) III and IV
(c) IV and V
(d) I and II
Direction (Q. Nos. 102-103) In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements, mark the correct answer as
(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion. .
(b) If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
(c) If Assertion is true, but Reason is false.
(d) If both Assertion and Reason are false.
102. Assertion Secondary growth in dicot roots occur with the help of vascular cambium and phellogen.
Reason Vascular cambium is formed from conjunctive parenchyma and part of pericycle.
103. Assertion If mitosis goes uncontrolled in any part of body, it results in the formation of malignant cells.
Reason The malignant cells continue to divide and become normal cells.
104. In roots, lateral branches grow from
(a) epiblema
(b) pericycle
(c) cortex
(d) endodermis
105. Phylloclade
(a) is a modified root
(b) serves as photosynthetic and storage organ
(c) is a irregular dry scaly structure
(d) lacks nodes and internodes
106. The most abundant chemical in living organisms could be
(a) protein
(b) water
(c) sugar
(d) nucleic acid
107. Which of the following correctly compares the Extracellular Matrix (ECM) of animal cells to cell wall of plant cells?
(a) Both the ECM and the plant cell wall are composed of varying mixtures of proteins and carbohydrates
(b) The structures that are external to the plasma membrane
are essentially independent of the plasma membrane in both groups ’
(c) The ECM and plant cell walls completely cover the plasma
(d) None of the above
108. Glycocalyx (mucilage sheath) of a bacterial cell may occur in the form of a loose sheath called …A… or it may be thick and tough called …B… .
Choose the correct pair from the given option.
(a) A-capsule;
(b) A-slime layer;
(c) A-mesosome;
(d) A-mesosome;
109. Assertion Bulbs are modified stem with fleshy leaves. Reason Bulbs are produced just below the surface of soils.
(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
(c) If Assertion is true, but Reason is false.
(d) If both Assertion and Reason are false
Answers :