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Neet Biology Morphology Of Flowering Plants Mcq
Quiz 2
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Q.1
The flowers of a raceme are arranged ... ..[ Pb PMT 2000 ]
0%
a) Acropetally
0%
b) Basipetally
0%
c) Centripetally
0%
d) Centrifugally
Explanation
Raceme: a flower cluster with the separate flowers attached by short equal stalks at equal distances along a central stem. The flowers at the base of the central stem develop first. peduncle has bisexual and pedicellate flowers arranged acropetally. It is a type of racemose inflorescence. Example: radish. Answer : (a)
Q.2
Finely dissected leaves occur in ... .. [ CPMT 1991 ]
0%
a) Free floating plants
0%
b) Rooted floating leaved plants
0%
c) Submerged plants
0%
d) Emerged plants
Explanation
Finely dissected leaves occur in submerged plants. In submerged plants, the leaves are finely dissected till the midrib. This dissection gives a feather-like appearance. Answer : (c)
Q.3
Cuscuta is ... .. [ CPMT 1994]
0%
a) Total root parasite
0%
b) Total stem parasite
0%
c) Partial stem parasite
0%
d) Epiphyte
Explanation
Parasite obtain their food requirements from other living organsims. Holoparasites or total parasites get water, minerals and organic food from their host.Cuscutta is a total stem parasite. Hemiparasites or partial parasite gets a part of nourishment from host. Viscum is partial stem parasite and santalum is partial root parasite. Answer : (b)
Q.4
Millets belong to ... ... [ EAMCET 1994]
0%
a) Fabaceae
0%
b) Poaceae
0%
c) Liliaceae
0%
d) Asteraceae
Explanation
Poaceae or Gramineae is a large family of monocotyledonous flowering plants which are collectively referred to as grasses. It includes cereals, grasses of natural grasslands, bamboos. It is the most economically important plant family, providing staple foods from domesticated cereal crops such as maize, wheat, barley, millet. Millets are a group of highly variable small seed grasses which is widely grown worldwide as grains for human food and fodder. Answer : (b)
Q.5
In unilocular ovary the ovules develop on the inner wall of ovary. Placentation can be ... ..[ CPMT 1992]
0%
a) Basal
0%
b) Axile
0%
c) Parietal
0%
d) Free central
Explanation
In parietal placentation, the ovary is unilocular and the ovules develop on the inner wall or the peripheral fused margins of the ovary. Answer : (c)
Q.6
Filament attached along the whole length of anther is the condition called ... ..[ AIIMS 2002]
0%
a) Adnate
0%
b) Dorsifixed
0%
c) Basifixed
0%
d) Versatile
Explanation
(a) Adnate: filament is fixed to anther in such a way that it runs up the entire length at its backside. (b) Dorsifixed: filament is fixed to dorsal side or back of the anther and anther is immovable. (c) Basifixed: Here the filament is attached to base of anther. (d) Versatile: filament is attached to middle of the connective so that anther lobes can swing on it freely. Answer : (a)
Q.7
Jack fruit is ... ... [ Wardaha 2000 ]
0%
a) Sorosis
0%
b) Syconus
0%
c) Siliqua
0%
d) Pome
Explanation
(a) Sorosis: It is mutiple and fleshy fruit develops from spike in pineapple, afemale catskin in mulberry, and a spadix in jackfruit. Jackfruit has a spiny rind. The penduncle and perianth of individual flowers become fleshy. (b) Syconus: It is also a multiple fruit develops from the hypanthodium inflorescence. The fruit is a hollow, cup shaped, fleshy, receptacle enclosing a large number of flowers. example- peepal, banyan and fig. (c) Siliqua: The fruit is developed from bicarpellary, syncarpous and superior ovary that bears ovules on two parietal placenta. example- mustard. (d) Pome: This is false fruit as it surrouned by a fleshy and edible thalamus. It develops from inferior, multicarpellary and syncarpous ovary with axile placentation. example- apple and pears. Answer : (a)
Q.8
Anatomically and structurally different structures with functional similarity are ... ... [ AIIMS 1990]
0%
a) Analogous
0%
b) Homologous
0%
c) Divergent
0%
d) Convergent
Explanation
Answer : (a)
Q.9
Aestivation in the flower of Calotropis is ... ..[ JKCET 2012]
0%
a) Twisted
0%
b) Imbricate
0%
c) Valvate
0%
d) Vexillary
Explanation
The arrangement of sepals or petals in flower is called the aestivation. In the Calotropis, the valvate aestivation is seen in which the sepals or petals do not overlap. Answer : (c)
Q.10
Swollen placentae, oblique septum and conniving anthers are characteristics of family ... ... [ AMU 2002]
0%
a) Brassicaceae
0%
b) Asteraceae
0%
c) Poaceae
0%
d) Solanaceae
Explanation
In Solanaceae, the placenta is swollen and the oblique septum is present. Conniving anthers are the stamens which are not fused but attached. In Solanaceae, the stamens are epipetalous (stamens are attached to the petals but not completely fused). Answer : (d)
Q.11
Marginal placentation is found in ... ...[ JIPMER 1990]
0%
a) Solanaceae
0%
b) Cruciferae
0%
c) Fabaceae/Leguminosae
0%
d) Asteraceae/Compositae
Explanation
In marginal placentation placentation, placenta bearing the ovules in a row develops along the junction of the two margins of folded carpels, inner to ovary wall. This type of marginal placentation is found in most of the members of the family leguminosae. Answer : (c)
Q.12
Food is stored in albuminous seed in ... ..[ BHU 1996]
0%
a) testa
0%
b) Cotyledon
0%
c) Endosperm
0%
d) Plumule
Explanation
Albuminous Seed or Endopermic
Exalbuminous Seed or Non-endopermic
These seeds possess endosperm. Endosperm is not completely used by the developing embryo, so a portion of it remains in seed
These seeds lack endosperm. Endosperm is completely used by the developing embryo before the maturation of seed, so thereis no endosperm left in seed
In such seeds, food is stored mainly in the endosperm
In such seeds, food is stored only in the cotyledons.
Example - Castor, cereal s, grasses
Example - pea, gram, lentil;
Answer : (c)
Q.13
Out of 5 petals of a flower, two are completely internal, two completely external and remaining one is internal at one margin and external at the other margin. Aestivation is ... ... [ Odisha 2010]
0%
a) Ascending imbricate
0%
b) Vexillary
0%
c) Quincuncial
0%
d) Valvate
Explanation
The mode of arrangement of sepals or petals in floral bud with respect to the other members of the same whorl is known as aestivation. There are following types of Aestivation: Quincuncial: Out of 5 petals of a flower, two are completely internal, two completely external and remaining one is internal at one margin and external at the other margin Valvate: When one member of a whorl present adjacent to other members and just touch one another at the margin without overlapping then it is known as valvate aestivation. Example: Calotropis. Twisted or Contorated: When one margin of a member covers adjacent member and the other margin is covered by another member. Example: China rose (Malvaceae Family). Imbricated: When margin of members overlap one another but not in any particular direction, then it is known as imbricate aestivation. Example: Cassia and Gulmohur. Vexillary: There are five members, the largest (standard) overlaps the two lateral members (wings) which in turn overlap the two smallest anterior members (keel). Example: Pea, Bean (Papilionatae sub-family of leguminosae family). It is also known as Papillionaceous. Answer : (c)
Q.14
Cruciform corolla is found in ... .. [ CPMT 1991]
0%
a) Pea
0%
b) China Rose
0%
c) Radish
0%
d) Sunflower
Explanation
Cruciform corolla occurs when the petals are free, called polypetalous and the petals are diagonally arranged to form a cross. There are four petals in this Corolla. A. Presence of five petals is called pentamerous condition. B. Five free sessile petals are seen in Rosaceous corolla. C. Four diagonally placed clawed petals are seen in cruciform corolla, e.g., Brassica. D. Five medianly and laterally placed clawed petals are seen in Caryophyllaceous corolla The flowers of pea are characterized with the butterfly-shaped corolla having five petals. Aestivation of Pea is called descending imbricate or vexillary aestivation. China rose, ladys finger and cotton, have twisted aestivation Sunflower is not a flower rather a bunch of flowers. In fact, what appears to be a single flower is, in fact, an inflorescence. this type of inflorescence is called capitulum.The following features of sunflower prove that it is not a flower but an inflorescence. i. Receptacle is flattened ii. Many small and sessile florets on the receptacle. . The youngest florets are at centre while the oldest are at the periphery. iv. There are two kinds of florets in sunflower, called as the ray florets and disc florets. Answer : (c)
Q.15
Root cap is not used in absorption of water due to ... ... [ Odisha 2011]
0%
a) Presence of root hairs
0%
b) Absence of root hairs
0%
c) Its presence in elongation zone
0%
d) None of the above
Explanation
In the root cap there is no root hair present. In absence of root hairs water absorption is not possible Answer : (b)
Q.16
Find the correct floral formula of actinomorphic, bisexual flower having five united sepals, five united petals, epipetalous five stamens and bicarpellary syncarpous superior ovary ... .... [ kerala 2011]
0%
a)
0%
b)
0%
c)
0%
d)
Explanation
Br.
Bracteate
C
Corolla-free(polypetalous)
Brl.
Bracteolate
(C)
Corolla-united (gamopetalous)
Ebr.
Ebracteate
Cx
Corolla-cruciform
Bbrl.
Ebracteolate
P
perianth
♂
Male
A
Androecium-free
♀
Female
(A)
Androecium-united
⚥
Bisexual
Epiphyllous
⊕
Actinomorphic
Epipetalous
† or %
Zygomorphic
G
Gynoecium-free
Ep
Epicalyx
(G)
Gynoecium-united
K
Calyx-free (polysepalous)
G
Superior ovary
(K)
Calyx-united (gamosepalous)
G̅
Inferior ovary
Gynostagium
Answer : (b)
Q.17
When pistillate and bisexual flowers develop on different plants. The condition is ... ..[ BV 2006]
0%
a) Gynodioecious
0%
b) Gynomonoecious
0%
c) Polygamodioecious
0%
d) Polygamonoecious
Explanation
Gynodioecious plants are having female(pistillate) flowers on one plant and hermaphrodite flowers on another plant of the same species Answer : (a)
Q.18
Which one of the following is a partial root parasite ... ..[ DPMT 2002]
0%
a) Balanophora
0%
b) Santalum
0%
c) Viscum
0%
d) Cuscuta
Explanation
Root parasite – a parasite that attaches to the host root. Indian sandalwood (Santalum album) which photosynthesize their own food, but roots are parasites, tap the roots of other species for water and inorganic nutrients. Answer : (b)
Q.19
Four sepals arranged in two whorls is characteristic of family ... ... [ BHU 2002]
0%
a) Solanaceae
0%
b) Fabaceae
0%
c) Brassicaceae
0%
d) Liliaceae
Explanation
The mode of arrangement of sepals or petals in floral bud with respect to the other members of the same whorl is known as aestivation. There are following types of Aestivation: Quincuncial: Out of 5 petals of a flower, two are completely internal, two completely external and remaining one is internal at one margin and external at the other margin Valvate: When one member of a whorl present adjacent to other members and just touch one another at the margin without overlapping then it is known as valvate aestivation. Example: Calotropis. Twisted or Contorated: When one margin of a member covers adjacent member and the other margin is covered by another member. Example: China rose (Malvaceae Family). Imbricated: When margin of members overlap one another but not in any particular direction, then it is known as imbricate aestivation. Example: Cassia and Gulmohur. Vexillary: There are five members, the largest (standard) overlaps the two lateral members (wings) which in turn overlap the two smallest anterior members (keel). Example: Pea, Bean (Papilionatae sub-family of leguminosae family). It is also known as Papillionaceous. Answer : (c)
Q.20
Fruit of family Gramineae/Wheat is usually ... ...[ DPMT 1996]
0%
a) Nut
0%
b) Achene
0%
c) Caryopsis
0%
d) Pod
Explanation
caryopsis (plural caryopses) is a type of simple dry fruit—one that is monocarpellate (formed from a single carpel) and indehiscent (not opening at maturity) and resembles an achene, except that in a caryopsis the pericarp is fused with the thin seed coat. The caryopsis is popularly called a grain and is the fruit typical of the family Poaceae (or Gramineae), which includes wheat, rice, and corn. The term grain is also used in a more general sense as synonymous with cereal. Answer : (c)
Q.21
Tripinnate leaves occur in ... ... [ DPMT 1999]
0%
a) Acacia
0%
b) Oxalis
0%
c) Moringa
0%
d) Gynandropsis
Explanation
Tripinnate: pinnately compound leaves in which the leaflets are themselves bipinnate; also called "thrice-pinnate". tetrapinnate: pinnately compound leaves in which the leaflets are themselves tripinnate. Moringa have Tripinnate leaves. Answer : (c)
Q.22
On the basis of position of ovary, Mustard flowers are ... .... [ JKCET 2012]
0%
a) Zygomorphic
0%
b) Epigynous
0%
c) Perigynous
0%
d) Hypogynous
Explanation
Zygomorphic definition, having bilateral symmetry; divisible lengthwise into similar or symmetrical halves. In epigynous flowers, the hypanthium is fused to the gynoecium, and the free parts of the sepals, petals, and stamens appear to be attached to the top of the gynoecium, as in the apple guava, cucumber Perigynous flower refers to a flower having sepals, petals and stamens around the edge of a cuplike receptacle containing the ovary, as in flowers of the rose In hypogynous flowers, the perianth and stamens are attached to the receptacle below the gynoecium; the ovary is superior to these organs, and the remaining floral organs arise from below the point of origin of the carpel Answer : (d)
Q.23
Protective covering over radicle during seed germination is ... ... [ BHU 1997]
0%
a) Coleorhiza
0%
b) Coleoptile
0%
c) Suspensor
0%
d) Epithelium
Explanation
Coleorhiza: a sheath protecting the root of a germinating grass or cereal grain. Coleoptile a sheath protecting a young shoot tip in a grass or cereal. Suspensor: a group or chain of cells that is produced from the zygote of a seed plant and serves to push the developing embryo into the endosperm. Epithelium: one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue. It is a thin, continuous, protective layer of cells Answer : (a)
Q.24
Small leaf occurs in ... ... [ JIPMER 2004]
0%
a) Victoria
0%
b) Wolffia
0%
c) Cycas
0%
d) Spiraea
Explanation
Wolffia have a size range of 1–15 mm and characteristic frond (the leaf or leaflike part ) in place of distinct leaves and stems Answer : (b)
Q.25
Which is correct match for edible part ... ... [ CBSE 2001]
0%
a) Tomato - Thalamus
0%
b) Maize - Cotyledons
0%
c) Guava - Mesocarp
0%
d) Date - Pericarp
Explanation
Tomato :edible parts are pericarp and placenta Endosperm is the edible part of Maize. Pericarp is the edible part of guava Fleshy pericarp of date palm is edible. Answer : (d)
Q.26
Transversely placed syncarpous ovary occurs in ... ... [ Pb PMT 2000]
0%
a) Compositae
0%
b) Cruciferae
0%
c) Malvaceae
0%
d) Cucurbitaceae
Explanation
In a syncarpous gynoecium, the "fused" ovaries of the constituent carpels may be referred to collectively as a single compound ovary. In Cruciferae there is one superior pistil that consists of two carpels that may either sit directly above the base of the stamens or on a stalk. Cruciferae flowers perfect, cruciform (cross- or X-shaped). Sepals 4, free. Petals 4, free, clawed. Stamens 6 with the 2 outer stamens shorter than the 4 inner stamens. Pistil compound, ovary superior, carpels 2. Answer : (b)
Q.27
Inflorescence having a flattened axis, sessile flowers and whorl of involucral bracts in ... ...[ Kerala 2005]
0%
a) Umbel
0%
b) Head/Capitulum
0%
c) Corymb
0%
d) Raceme
Explanation
Answer : (b)
Q.28
Dried fruit used in making a musical instrument is ... ... [ Har. PMT 2007]
0%
a) Snake Gourd
0%
b) Bitter Gourd
0%
c) Bottle Gourd
0%
d) All the above
Explanation
Bottle gourd has a woody epicarp which makes the ideal surface for resonant musical instruments after hollowing out the pulpy insides of the fruit. It is an amphisarca type of fruit. Snake gourd and bitter gourd are pepo and donot have woody epicarp which can be used to make musical instruments. Answer : (c)
Q.29
Caruncle develops from ... .. [ MPPMT 1996]
0%
a) Outer integument
0%
b) Cotyledon
0%
c) Funiculus
0%
d) inner integument
Explanation
The caruncle, also called elaiosome, is an external structure that covers the micropylar. region in the seed of species belonging to the Euphorbiaceae Family. Answer : (a)
Q.30
Corm is ... ... [ AFMC 1996]
0%
a) Underground shoot
0%
b) Underground root
0%
c) Horizontal stem
0%
d) Underground vertical stem
Explanation
Corm, vertical, fleshy, underground stem that acts as a food-storage structure in certain seed plants. Answer : (d)
Q.31
In Maize seeds, the layer separating the endosperm from embryo is rich in ... ... [ HPPMT 2012]
0%
a) Carbohydrates
0%
b) Proteins
0%
c) Enzymes
0%
d) Hormones
Explanation
In Maize seeds, the layer separating the endosperm from embryo is aleurone layer . Aleurone is a protein found in protein granules of maturing seeds and tubers. Aleurone layer contains hydrolytic enzymes (including amylases and proteases) for the digestion of the food stored in the endosperm. During germination, the aleurone performs an important digestive function, secreting hydrolases to break down the starch and proteins stored in the starchy endosperm cells Answer : (b)
Q.32
Roots developing from plant parts other than radicle are ... .. [ AFMC 1994]
0%
a) Epiphyllous
0%
b) Epicurious
0%
c) Adventitious
0%
d) Fibrous
Explanation
Adventitious roots are plant roots that form from any nonroot tissue and are produced both during normal development (crown roots on cereals and nodal roots on strawberry [Fragaria spp.]) and in response to stress conditions, such as flooding, nutrient deprivation, and wounding. Answer : (c)
Q.33
Which one is oil yielding plant ... .... [ AMU 1999 ]
0%
a) Helianthus annuus
0%
b) Cajanus cajan
0%
c) Pennisetum typhoids
0%
d) Chrysanthemum cinerariifolium
Explanation
Helianthus annuus, the common sunflower, is a large annual forb of the genus Helianthus grown as a crop for its edible oil and edible fruits Answer : (a)
Q.34
Thalamus is ... ... [ Bih PMT 1994]
0%
a) Base of flower
0%
b) Base of ovary
0%
c) Modification of pollen
0%
d) Modification of petal
Explanation
Answer : (a)
Q.35
Santalum album / Sandal-wood tree is .. ..[ Odisha 2007]
0%
a) Partial root parasite
0%
b) Partial stem parasite
0%
c) Total stem parasite
0%
d) Total root parasite
Explanation
In angiosperms, the receptacle or torus (an older term is thalamus, as in Thalamiflorae) is the thickened part of a stem (pedicel) from which the flower organs grow. Answer : (a)
Q.36
Match the following .. ..[ KCET 1999 ]
a) Berry
p)
Ficus
b) Siliqua
q) Jack Fruit
c) Sorosis
r) Mustard
d) Syconus
s) Lemon
t) Tomato
0%
a) a - t, b - r, c - q, d - p
0%
b) a - r, b - t, c - p, d - q
0%
c) a - t, b - q, c - r, d - p
0%
d) a - s, b - t, c - p, d - r
Explanation
Botanically, a tomato is a fruit—a berry, consisting of the ovary, together with its seeds, of a flowering plant. a - t, A silique or siliqua is a type of fruit (seed capsule) having two fused . Siliques are present in many members of the mustard family b - r, Sorosis is a fleshy multiple fruit, derived from the ovaries of several flowers. In Jackfruit, multiple flowers form one fruit other examples are pineapple or mulberry, c - q, Syconus fruit a type of composite fruit formed from a hollow fleshy inflorescence stalk inside which tiny flowers develop. A syconium is the type of inflorescence borne by figs genus Ficus d - p Answer : (a)
Q.37
Nodulated roots occur in ... ... [ RPMT 1995]
0%
a) Leguminosae
0%
b) Solanaceae
0%
c) Malvaceae
0%
d) Papilionate
Explanation
Plants that contribute to nitrogen fixation include the legume family – Fabaceae – with taxa such as kudzu, clovers, soybeans, alfalfa, lupines, peanuts, and rooibos. Answer : (a)
Q.38
Which one of the following belong to the same category ... .. [ BHU 1990]
0%
a) Cashew nut, Coconut and Chestnut
0%
b) Coconut, Orange and Tomato
0%
c) Betelnut, Chestnut and Coconut
0%
d) Mango, Almond and Coconut
Explanation
Mango, Almond and Coconut are all drupes. Drupe (or stone fruit) is an indehiscent fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the pit, stone, or pyrene) of hardened endocarp with a seed (kernel) inside. Answer : (d)
Q.39
Type of stem structure present is Colocasia is ... ... [ AFMC 2010]
0%
a) Corm
0%
b) Bulb
0%
c) Rhizome
0%
d) Tuber
Explanation
Colocasia are herbaceous perennial plants with a large corm on or just below the ground surface. Answer : (a)
Q.40
A weed belonging to family Asteraceae which has spread in all parts of India is ... .... [ AIIMS 1992]
0%
a) Nicotiana
0%
b) Oryza
0%
c) Parthenium
0%
d) Hordeum
Explanation
In India, Parthenium is locally known as congress grass or gajar ghans. It belongs to family Asteraceae. Nicotiana is a genus belonging to family Solanaceae. Answer : (c)
Q.41
Velamen takes part in ... .. [CPMT 1991]
0%
a) Absorption of moisture from air
0%
b) Absorption of water from soil
0%
c) Exchange of gases
0%
d) Transpiration
Explanation
velamen is an outer layer of empty cells in the aerial roots of epiphytic orchids and aroids. These cells provide support, prevent water loss, and assist the plant in absorbing moisture from fog or humid air. Answer : (a)
Q.42
Which is correct arrangement of corolla in family papilionaceae .. .. [ BHU 2012 ]
0%
a) C1+(2)+2
0%
b) C1+2+(2)
0%
c) C1+2+2
0%
d)
Explanation
The corolla of family papilionaceae consists of 5 petals (unequal), the uppermost and the largest petal is known as standard or vexillum; the two free lateral petals are known as wings or alae; the anterior pair of united petals is termed keel or carnia, this encloses stamens and pistil. Hence, the correct arrangement of the corolla is 1+2+(2). Answer : (b)
Q.43
Which one of the following is a parasitic plant? .. .[ kerala 2002]
0%
a) Drosera
0%
b) Cuscuta
0%
c) Nepenthes
0%
d) Utricularia
Explanation
Cuscuta spp represent a unique group of holoparasitic dicotyledonous plants which can infect nearly all dicotyledonous species. Lacking roots and leaves, these parasitic plants are completely dependent on nutrients, carbohydrates and water from host plants. Answer : (b)
Q.44
Select the one, which is pitcher plant ... ... [ DPMT 1997]
0%
a) Drosera
0%
b) utricularia
0%
c) Sarracenia
0%
d) Aldrovanda
Explanation
The term "pitcher plant" generally refers to members of the Nepenthaceae and Sarraceniaceae families Answer : (c)
Q.45
Floral formula is that of ... ... [ CBSE 2009]
0%
a) Soybean
0%
b) Tobacco
0%
c) Tulip
0%
d) Sunn Hemp
Explanation
Answer : (b)
Q.46
Inflorescence of Cauliflower is ... ...[ Odisha 2011]
0%
a) Corymb
0%
b) Catkin
0%
c) Umbel
0%
d) Compound corymb
Explanation
Compound Corymb (Corymb of Corymbs), e.g., Pyrus, Cauliflower, Candytuft. In Cauliflower (Brassica oleracea vern. hotrytis, vern. Gobhi), the flowers remain undeveloped. Answer : (d)
Q.47
A plant with actinomorphic and hypogynous flowers, heterochlamydeous perianth, dorsified and extross anthers dehiscing transversely belongs to ... ... [ EAMCET 2009]
0%
a) Coronariae
0%
b) Thalamiflorae
0%
c) Bicarpellatae
0%
d) Calyciflorae
Explanation
Answer : (b)
Q.48
A leaf is identified from ... ...[ JKCMEE 1999 ]
0%
a) Flat green lamina
0%
b) Presence of leaf blade and petiole
0%
c) Presence of axillary bud
0%
d) Occurrence of chlorophyll
Explanation
The axillary bud (or lateral bud) is an embryonic or organogenic shoot located in the axil of a leaf. Each bud has the potential to form shoots, and may be specialized in producing either vegetative shoots (stems and branches) or reproductive shoots (flowers). Answer : (c)
Q.49
Scutellum of Maize/Caryopsis is ... ... [ CBSE 2010]
0%
a) Cotyledon
0%
b) Endosperm
0%
c) Tegmen
0%
d) Testa
Explanation
The scutellum is a modified cotyledon, or seed leaf. Answer : (a)
Q.50
Inferior ovary occurs in .. ... [ CPMT 1995]
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a) Cruciferae
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b) Compositae
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c) Malvaceae
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d) Ranunculaceae
Explanation
An inferior ovary lies below the attachment of other floral parts. Flowers with inferior ovaries are termed epigynous. Some examples of flowers with an inferior ovary are orchids (inferior capsule), Fuchsia (inferior berry), banana (inferior berry), Asteraceae or Compositae (inferior achene-like fruit, called a cypsela) and the pepo of the squash, melon and gourd family, Cucurbitaceae. Answer : (b)
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