Class 11/Question Bank
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Questions on Anatomy of Flowering Plants
Instructions: Choose the correct answer from the given options.
A group of cells having a common origin and performing a common function is called: a) Organ b) Tissue c) System d) Meristem
Apical meristems are responsible for: a) Secondary growth b) Primary growth c) Lateral growth d) Radial growth
Which meristem is commonly found in grasses? a) Apical meristem b) Lateral meristem c) Intercalary meristem d) Cork cambium
Vascular cambium is an example of: a) Apical meristem b) Intercalary meristem c) Lateral meristem d) Primary meristem
Parenchyma cells are characterized by: a) Thick walls b) Lignified walls c) Thin walls d) Waxy walls
The function of collenchyma is: a) Conduction b) Mechanical support c) Storage d) Photosynthesis
Sclerenchyma cells have walls thickened with: a) Cellulose b) Pectin c) Lignin d) Suberin
Which tissue conducts water and minerals? a) Phloem b) Xylem c) Parenchyma d) Collenchyma
Companion cells are associated with: a) Xylem b) Phloem c) Epidermis d) Cortex
The outermost covering of plant body is: a) Cortex b) Epidermis c) Endodermis d) Pericycle
Stomata are part of which tissue system? a) Ground tissue b) Vascular tissue c) Epidermal tissue d) Mechanical tissue
Ground tissue system consists of: a) Simple tissues only b) Complex tissues only c) Both simple and complex d) Meristematic tissues
Vascular bundles consist of: a) Xylem only b) Phloem only c) Xylem and phloem d) Cambium only
In dicot root, the arrangement of vascular bundles is: a) Conjoint b) Radial c) Collateral d) Bicollateral
Casparian strips are found in: a) Epidermis b) Cortex c) Endodermis d) Pericycle
The region inner to endodermis is called: a) Cortex b) Stele c) Epidermis d) Hypodermis
Exarch condition means: a) Protoxylem towards center b) Protoxylem towards periphery c) Metaxylem towards periphery d) No protoxylem present
In monocot root, the number of xylem bundles is usually: a) 2-4 b) More than 6 c) Always 6 d) 1-2
In dicot stem, vascular bundles are arranged in: a) Scattered pattern b) Ring pattern c) Radial pattern d) Random pattern
Open vascular bundles have: a) No cambium b) Cambium present c) Only phloem d) Only xylem
The hypodermis in monocot stem is: a) Collenchymatous b) Sclerenchymatous c) Parenchymatous d) Chlorenchymatous
Bundle sheath in monocot stem is made of: a) Parenchyma b) Collenchyma c) Sclerenchyma d) Chlorenchyma
Dorsiventral leaf is characteristic of: a) Monocots b) Dicots c) Both d) Neither
Isobilateral leaf is found in: a) Dicots b) Monocots c) Gymnosperms d) Ferns
Palisade parenchyma is found in: a) Upper part of mesophyll b) Lower part of mesophyll c) Throughout mesophyll d) Only in veins
Bulliform cells are found in: a) Dicot leaves b) Monocot leaves c) Roots d) Stems
The main function of bulliform cells is: a) Photosynthesis b) Water storage c) Reducing water loss d) Mechanical support
Spongy parenchyma has: a) Tightly packed cells b) Loosely arranged cells c) Thick-walled cells d) Lignified cells
Tracheids are found in: a) Phloem b) Xylem c) Cortex d) Epidermis
Sieve tube elements are components of: a) Xylem b) Phloem c) Epidermis d) Ground tissue
Cork cambium is responsible for: a) Primary growth b) Secondary growth c) Apical growth d) Intercalary growth
The pith in dicot root is: a) Large and conspicuous b) Small or inconspicuous c) Absent d) Made of sclerenchyma
Polyarch condition is seen in: a) Dicot root b) Monocot root c) Dicot stem d) Monocot stem
Closed vascular bundles are found in: a) Dicot stem b) Monocot stem c) Dicot root d) Monocot root
The protective layer of dicot stem is: a) Cortex b) Endodermis c) Epidermis d) Pericycle
Trichomes are: a) Root hairs b) Epidermal appendages c) Vascular elements d) Storage cells
Intercellular spaces are maximum in: a) Parenchyma b) Collenchyma c) Sclerenchyma d) Epidermis
Lignin deposition occurs in: a) Parenchyma b) Collenchyma c) Sclerenchyma d) All tissues
Hemicellulose is found in: a) Parenchyma b) Collenchyma c) Sclerenchyma d) Epidermis
Vessels are characteristic of: a) Gymnosperms b) Angiosperms c) Pteridophytes d) Bryophytes
Phloem fibers provide: a) Conduction b) Mechanical support c) Storage d) Protection
Xylem parenchyma stores: a) Food b) Water c) Minerals d) All of these
The middle layer of dicot stem cortex is: a) Hypodermis b) Endodermis c) Cortical parenchyma d) Pericycle
Cuticle is made of: a) Cellulose b) Lignin c) Cutin d) Suberin
Root hairs are extensions of: a) Cortex b) Epidermis c) Endodermis d) Pericycle
The innermost layer of cortex is: a) Hypodermis b) Endodermis c) Pericycle d) Epidermis
Cambium is a type of: a) Permanent tissue b) Meristematic tissue c) Dead tissue d) Protective tissue
Stomatal apparatus consists of: a) Guard cells only b) Guard cells and subsidiary cells c) Epidermal cells only d) All epidermal cells
The main photosynthetic tissue in dicot leaf is: a) Spongy parenchyma b) Palisade parenchyma c) Bundle sheath d) Epidermis
Aerenchyma is a type of: a) Sclerenchyma b) Collenchyma c) Parenchyma d) Complex tissue
Fibers are a type of: a) Parenchyma b) Collenchyma c) Sclerenchyma d) Epidermis
Sclereids are: a) Long fibers b) Short, branched sclerenchyma c) Parenchyma cells d) Epidermal cells
Protoxylem is characterized by: a) Large vessels b) Small vessels c) Thick walls d) Branched cells
Metaxylem has: a) Small vessels b) Large vessels c) No vessels d) Thin walls
Phloem transports: a) Water only b) Minerals only c) Organic food d) Water and minerals
The direction of transport in phloem is: a) Unidirectional b) Bidirectional c) Upward only d) Downward only
Companion cells are connected to sieve tube elements by: a) Plasmodesmata b) Pit pairs c) Sieve plates d) Perforations
Bundle sheath extension connects: a) Upper and lower epidermis b) Xylem and phloem c) Palisade and spongy tissue d) Veins and midrib
Collateral vascular bundles have: a) Phloem on both sides b) Xylem on both sides c) Phloem on one side d) Cambium absent
Bicollateral vascular bundles are found in: a) All dicots b) Some dicots c) Monocots d) Gymnosperms
The waxy layer on leaf surface is: a) Cuticle b) Epidermis c) Hypodermis d) Mesophyll
Stomata are more numerous on: a) Upper epidermis b) Lower epidermis c) Both equally d) Midrib only
Chloroplasts are most abundant in: a) Epidermis b) Cortex c) Mesophyll d) Vascular tissue
Pericycle in dicot stem is: a) Continuous b) Discontinuous c) Absent d) Only near phloem
Ground tissue in monocot stem is: a) Differentiated b) Undifferentiated c) Absent d) Only parenchyma
Secondary growth occurs due to: a) Apical meristem b) Lateral meristem c) Intercalary meristem d) Primary meristem
Monocot stems generally show: a) Secondary growth b) No secondary growth c) Both primary and secondary d) Only secondary growth
Vessel elements are connected by: a) Sieve plates b) Perforation plates c) Plasmodesmata d) Pit pairs
Tracheids are connected by: a) Perforation plates b) Sieve plates c) Bordered pits d) Simple pits
Phloem loading occurs in: a) Source b) Sink c) Companion cells d) Sieve plates
The strengthening tissue in young stems is: a) Sclerenchyma b) Collenchyma c) Parenchyma d) Epidermis
Pectin is a component of: a) Sclerenchyma b) Collenchyma c) Lignin d) Cutin
Isodiametric cells are found in: a) Parenchyma b) Collenchyma c) Sclerenchyma d) Epidermis
Chlorenchyma is a type of: a) Sclerenchyma b) Collenchyma c) Parenchyma d) Complex tissue
Mechanical tissue provides: a) Conduction b) Support c) Storage d) Protection
Permanent tissues are derived from: a) Meristematic tissues b) Other permanent tissues c) Epidermis d) Vascular tissue
Cambial activity results in: a) Primary growth b) Secondary growth c) Apical growth d) Leaf expansion
Heartwood is composed of: a) Living xylem b) Dead xylem c) Phloem d) Cambium
Sapwood is: a) Dead xylem b) Living xylem c) Phloem d) Bark
Annual rings are formed due to: a) Primary growth b) Secondary growth c) Lateral growth d) Apical growth
Lenticels are found in: a) Epidermis b) Cork c) Cortex d) Cambium
Periderm consists of: a) Cork only b) Cork cambium only c) Cork, cork cambium, and phelloderm d) Epidermis and cork
Phelloderm is: a) Cork b) Cork cambium c) Secondary cortex d) Primary cortex
Bark includes: a) Secondary phloem only b) Cork only c) All tissues outside cambium d) Cambium and phloem
Reaction wood is: a) Normal wood b) Abnormal wood c) Heartwood d) Sapwood
Tension wood is formed in: a) Conifers b) Angiosperms c) Both d) Neither
Compression wood is found in: a) Angiosperms b) Gymnosperms c) Both d) Neither
Resin ducts are characteristic of: a) Angiosperms b) Gymnosperms c) Both d) Neither
Latex is produced by: a) Xylem b) Phloem c) Laticiferous ducts d) Cortex
Secretory ducts are: a) Intercellular spaces b) Specialized cells c) Vascular elements d) Epidermal structures
Hydathodes are involved in: a) Transpiration b) Guttation c) Respiration d) Photosynthesis
Nectaries secrete: a) Latex b) Resin c) Nectar d) Oil
Idioblasts are: a) Specialized cells b) Meristematic cells c) Vascular elements d) Epidermal cells
Cystoliths are: a) Calcium oxalate crystals b) Calcium carbonate deposits c) Silica bodies d) Starch grains
Raphides are: a) Starch grains b) Needle-shaped crystals c) Oil bodies d) Protein crystals
Druses are: a) Single crystals b) Clustered crystals c) Needle crystals d) Prismatic crystals
Mucilage is secreted by: a) All cells b) Specialized cells c) Vascular elements d) Epidermal cells
Tannins are stored in: a) Vacuoles b) Cytoplasm c) Cell walls d) Plastids
Essential oils are produced by: a) All parenchyma b) Glandular cells c) Vascular elements d) Epidermal cells
Alkaloids are: a) Proteins b) Carbohydrates c) Nitrogenous compounds d) Lipids
Instructions: Write brief answers in 1-2 sentences.
Instructions: Write answers in 3-4 sentences or provide labeled diagrams where asked.
Instructions: Write detailed answers in 5-6 sentences or provide detailed labeled diagrams.
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