Morphology of Flowering Plants

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Morphology of Root, Stem and Leaf

Subtopic

Morphology of Root, Stem and Leaf under Morphology of Flowering Plants for Grade 11 CBSE.

Preview questions (no answers)

1.
$Insectivorous plants like Venus fly trap have modified:$
A. $Stems$
B. $Roots$
C. $Leaves$
D. $Flowers$
2.
$Which of the following is an example of a plant with whorled phyllotaxy?$
A. $Mustard$
B. $Sunflower$
C. $Alstonia$
D. $Calotropis$
3.
$In which plant does the lateral branch originate from the basal and underground portion of the main stem and grow horizontally beneath the soil before coming out obliquely upward?$
A. $Pistia$
B. $Chrysanthemum$
C. $Eichhornia$
D. $Grass$
4.
$Which structure helps the leaf blade to flutter in the wind and thereby cooling the leaf?$
A. $Leaf base$
B. $Petiole$
C. $Midrib$
D. $Stipule$
5.
$In certain plants, the petiole becomes leaf-like and performs photosynthesis. This is an adaptation to:$
A. $Aquatic environments$
B. $Xerophytic (dry) environments$
C. $Epiphytic lifestyles$
D. $Parasitic lifestyles$
6.
$Stem modification for protection against browsing animals is most clearly seen in which of the following?$
A. $Cucumber$
B. $Opuntia$
C. $Citrus$
D. $Onion$
7.
$Which statement is true regarding the nodes of an underground stem modification like ginger?$
A. $Nodes are absent in underground stems$
B. $Nodes bear scale leaves and axillary buds$
C. $Nodes are only found in aerial stems$
D. $Nodes produce root hairs for absorption$
8.
$In certain xerophytic plants, the stem becomes fleshy, green, and cylindrical. Identify the plant and the type of modification.$
A. $Opuntia$
B. $Euphorbia$
C. $Asparagus$
D. $Ruscus$
9.
$Which of the following is a characteristic feature of 'Stolon' as a sub-aerial stem modification?$
A. $It is a slender lateral branch that arises from the base of the main axis and after growing aerially for some time, arches downwards to touch the ground.$
B. $It is a branch with short internodes and each node bears a rosette of leaves.$
C. $It grows horizontally underground and then emerges obliquely.$
D. $It is an underground modification meant for food storage.$
10.
$Acacia$
A. $Both are stem modifications$
B. $Both are leaf modifications$
C. $Both are photosynthetic in function$
D. $Both have unlimited growth$

Download the worksheet for Morphology of Flowering Plants - Morphology of Root, Stem and Leaf to practice offline. It includes additional chapter-level practice questions.

Inflorescence

Subtopic

Inflorescence under Morphology of Flowering Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which arrangement represents a basipetal order?$
A. $Oldest at bottom, youngest at top$
B. $Oldest at top, youngest at bottom$
C. $All flowers open at once$
D. $Only one flower at the base$
2.
$What is the primary function of the inflorescence?$
A. $Photosynthesis$
B. $To facilitate pollination$
C. $Water absorption$
D. $Support the plant$
3.
$In racemose inflorescence, the main axis is also called the:$
A. $Rachis$
B. $Receptacle$
C. $Thalamus$
D. $Calyx$
4.
$When the floral axis is reduced and bears flowers in a cluster, this arrangement is called:$
A. $Phyllotaxy$
B. $Inflorescence$
C. $Aestivation$
D. $Venation$
5.
$Which of the following is NOT a type of racemose inflorescence?$
A. $Spike$
B. $Umbel$
C. $Dichasial Cyme$
D. $Raceme$
6.
$The axis of a compound inflorescence is known as the:$
A. $Primary peduncle$
B. $Common rachis$
C. $Receptacle$
D. $Secondary pedicel$
7.
$An inflorescence where the flowers are arranged on the axis such that the oldest is at the top and youngest at the bottom is called:$
A. $Acropetal$
B. $Basipetal$
C. $Centripetal$
D. $None of these$
8.
$In the Poaceae family, the spikelet is subtended by two glumes. If a spikelet contains multiple florets, where is the oldest floret located?$
A. $At the tip of the rachilla.$
B. $At the base of the rachilla, closest to the glumes.$
C. $In the middle of the rachilla.$
D. $Oldest and youngest florets are produced simultaneously.$
9.
$A student describes an inflorescence where the flowers are sessile and the peduncle is very short, resulting in a crowded, head-like cluster, but the flowers are cymose. This is a:$
A. $Capitulum$
B. $Capitate Cyme (Globose Cyme)$
C. $Verticillaster$
D. $Cyathium$
10.
$The 'Involucre of Bracts' in the family Asteraceae serves what primary function during the bud stage of the Capitulum?$
A. $Photosynthesis for the developing florets.$
B. $Protection of the young florets before they open.$
C. $Attraction of insects via secretion of pheromones.$
D. $Acting as a surface for seed attachment.$

Download the worksheet for Morphology of Flowering Plants - Inflorescence to practice offline. It includes additional chapter-level practice questions.

Flower, Fruit and Seed

Subtopic

Flower, Fruit and Seed under Morphology of Flowering Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

1.
$The outer layer of the seed coat in a dicot seed is called the:$
A. $Tegmen$
B. $Testa$
C. $Hilum$
D. $Micropyle$
2.
$Which of the following is an example of a parthenocarpic fruit?$
A. $Mango$
B. $Apple$
C. $Banana$
D. $Jackfruit$
3.
$When more than one carpel is present and they are free, the condition is called:$
A. $Syncarpous$
B. $Apocarpous$
C. $Monocarpellary$
D. $Multicarpellary$
4.
$In monocot seeds, the radicle is enclosed in a protective sheath called:$
A. $Coleoptile$
B. $Coleorhiza$
C. $Scutellum$
D. $Endosperm$
5.
$If stamens are united into more than two bundles, as seen in Citrus, the androecium is:$
A. $Monadelphous$
B. $Diadelphous$
C. $Polyadelphous$
D. $Syngenesious$
6.
$In monocotyledonous seeds like maize, the endosperm is usually:$
A. $Small and non-functional$
B. $Bulky and stores food$
C. $Absent at maturity$
D. $Converted into the coleoptile$
7.
$The part of the embryonal axis situated below the level of cotyledons in a dicot embryo which terminates at the radicle is the:$
A. $Epicotyl$
B. $Hypocotyl$
C. $Scutellum$
D. $Coleorhiza$
8.
$In which type of aestivation does one margin of the appendage overlap that of the next one, and so on (e.g., China rose)?$
A. $Valvate$
B. $Twisted$
C. $Imbricate$
D. $Vexillary$
9.
$Identify the incorrect statement about the family Solanaceae:$
A. $Leaves are alternate, simple, and rarely pinnately compound$
B. $Flowers are bisexual and actinomorphic$
C. $Gynoecium is bicarpellary and apocarpous$
D. $Fruit is a berry or capsule$
10.
$Which layer of the seed coat is the inner layer?$
A. $Testa$
B. $Tegmen$
C. $Perisperm$
D. $Hilum$

Download the worksheet for Morphology of Flowering Plants - Flower, Fruit and Seed to practice offline. It includes additional chapter-level practice questions.

Description of families (Solanaceae, Fabaceae, Liliaceae)

Subtopic

Description of families (Solanaceae, Fabaceae, Liliaceae) under Morphology of Flowering Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

1.
$An obliquely placed ovary is a distinctive feature of which of these families?$
A. $Fabaceae$
B. $Solanaceae$
C. $Liliaceae$
D. $Brassicaceae$
2.
$The condition where flowers have a bract at the base of the pedicel is common in Liliaceae. Such flowers are called:$
A. $Ebracteate$
B. $Bracteate$
C. $Involucrate$
D. $Sessile$
3.
$How many locules are usually found in the ovary of a member of the Liliaceae family?$
A. $One$
B. $Two$
C. $Three$
D. $Five$
4.
$Which of the following statements about seeds in Solanaceae is true?$
A. $They are non-endospermic$
B. $They are endospermic$
C. $They are always absent$
D. $There is only one seed per fruit$
5.
$The gynoecium in Solanaceae is syncarpous. What does this term imply?$
A. $Carpels are free$
B. $Carpels are fused$
C. $Only one carpel is present$
D. $Ovary is inferior$
6.
$Identify the correct combination of a plant and its family from the following.$
A. $Petunia - Fabaceae$
B. $Colchicum - Liliaceae$
C. $Indigofera - Solanaceae$
D. $Asparagus - Fabaceae$
7.
$In Liliaceae, the seeds are endospermous. This is a characteristic usually associated with:$
A. $Dicots$
B. $Monocots$
C. $Gymnosperms$
D. $Pteridophytes$
8.
$The 'Swollen Placenta' is a characteristic feature of the family:$
A. $Solanaceae$
B. $Fabaceae$
C. $Liliaceae$
D. $Asteraceae$
9.
$Which of the following is a medicine derived from a member of the Fabaceae family?$
A. $Muliathi$
B. $Belladonna$
C. $Ashwagandha$
D. $Colchicine$
10.
$The stamens in Solanaceae are:$
A. $Five in number, epipetalous, and alternating with the petals.$
B. $Ten in number, diadelphous, and epipetalous.$
C. $Six in number, in two whorls, and epitepalous.$
D. $Numerous, polyadelphous, and episepalous.$

Download the worksheet for Morphology of Flowering Plants - Description of families (Solanaceae, Fabaceae, Liliaceae) to practice offline. It includes additional chapter-level practice questions.

Semi-technical description of a typical flowering plant

Subtopic

Semi-technical description of a typical flowering plant under Morphology of Flowering Plants for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

1.
$Nicotiana$
A. $Fabaceae$
B. $Solanaceae$
C. $Liliaceae$
D. $Malvaceae$
2.
$Which symbol represents a bisexual flower?$
A. $\small{\text{\male}}$
B. $\small{\text{\female}}$
C. $\small{\text{\female \male}}$
D. $A$
3.
$The technical term for a sterile stamen is:$
A. $Pistillode$
B. $Staminode$
C. $Tepal$
D. $Bract$
4.
$Colchicine is obtained from a plant belonging to which family?$
A. $Solanaceae$
B. $Fabaceae$
C. $Liliaceae$
D. $Asteraceae$
5.
$The botanical name of 'Makoi' is Solanum nigrum. To which family does it belong?$
A. $Solanaceae$
B. $Fabaceae$
C. $Liliaceae$
D. $Brassicaceae$
6.
$Placentation in Fabaceae is:$
A. $Marginal$
B. $Axile$
C. $Parietal$
D. $Free central$
7.
$Which of the following is a fodder plant belonging to the family Fabaceae?$
A. $Trifolium$
B. $Muliathi$
C. $Gloriosa$
D. $Petunia$
8.
$What is the botanical significance of the 'Mother Axis' in drawing a floral diagram?$
A. $It represents the base of the flower$
B. $It represents the posterior side of the flower$
C. $It represents the anterior side of the flower$
D. $It represents the attachment point of the pedicel$
9.
$Determine the correct botanical name and family for 'Muliathi'.$
A. $Glycyrrhiza glabra; Fabaceae$
B. $Withania somnifera; Solanaceae$
C. $Atropa belladonna; Solanaceae$
D. $Colchicum autumnale; Liliaceae$
10.
$Which family's technical description includes 'valvate aestivation in calyx and corolla, and axile placentation'?$
A. $Fabaceae$
B. $Solanaceae$
C. $Liliaceae$
D. $Malvaceae$

Download the worksheet for Morphology of Flowering Plants - Semi-technical description of a typical flowering plant to practice offline. It includes additional chapter-level practice questions.

Morphology of Flowering Plants

Morphology of Root, Stem and Leaf

❓Preview questions (no answers)

Inflorescence

❓Preview questions (no answers)

Flower, Fruit and Seed

❓Preview questions (no answers)

Description of families (Solanaceae, Fabaceae, Liliaceae)

❓Preview questions (no answers)

Semi-technical description of a typical flowering plant

❓Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)