CBSE Questions for Class 11 Medical Biology Morphology Of Flowering Plants Quiz 6 - MCQExams.com

In which family, oblique ovary is found?
  • Solanaceae
  • Liliaceae
  • Compositae
  • Cruciferae
Allium cepa is example of the family 
  • Cruciferae
  • Liliaceae
  • Solanaceae
  • Compositae
The inflorescence in Gramineae is a
  • Raceme
  • Spike
  • Spikelet
  • Thyrsus
Root apex is sub-terminal because it is
  • Covered by root hairs
  • Covered by root cap
  • Covered by epidermis
  • Under the soil
Verticillaster inflorescence is the characteristic of family
  • Cucurbitacae
  • Rubiaceae
  • Labiatae
  • Asteraceae
Ornamental plant tulip belong to which of the following family?
  • Asterceae
  • Brassicaceae
  • Solanaceae
  • Liliaceae
In Gramineae the perianth is represented by smaIl scaly lodicules which are generally
  • Two
  • Three
  • Four
  • Five
Perianth of Gramineae is termed
  • Tepal
  • Ligule
  • Lodicule
  • Spur
Epipetalous stamens and axile placentation is found in
  • Cruciferae
  • Leguminosae
  • Malvaceae
  • Liliaceae
Capitulum inflorescence is found in
  • Compositae (Asteraceae)
  • Cruciferae (Brassicaceae)
  • Solanaceae
  • Malvaceae
Which of the following part of cauliflower is used as vegetable?
  • Terminal bud with immature leaves
  • Unripe inflorescence
  • Fruit
  • Swollen stem
Velamen or spongy tissue are found in
  • Breathing roots
  • Parasitic roots
  • Tuberous roots
  • Epiphytic roots
Leguminosae is important for
  • Vegetables
  • Pulses
  • Oils
  • Fibres
Transition of exarch bundles of root to endarch bundles of stem occurs in
  • Epicotyl
  • Hypocotyl
  • Apical bud
  • Coleoptile
In colocasia, .......... is modified to store the food. 
  • Stem
  • Root
  • Leaves
  • Flowers
'Quiescent centre' is found in:
  • Leaf tip
  • Shoot tip
  • Root tip
  • Flower
Number of female flowers in a cyathium inflorescence is
  • 1
  • 2
  • 3
  • Several
Plants growing on high walls or on tall trees obtain water from:
  • The source on which they are growing
  • The land
  • Water bodies
  • The moisture present in the atmosphere
Tendrils are 
  • Stems modified to store the food
  • Stems modified into coiled wires
  • Stems modified into prop roots
  • Roots modified to perform photosynthesis
Inflorescence having unisexual sessile flowers is
  • Spike
  • Spikelet
  • Catkin
  • Raceme
An example of a plant that lives in water is
  • Opuntia
  • Hydrilla
  • Touch-me-not
  • Calotropis
............ develops into embryo.
  • Micropyle
  • Chalaza
  • Zygote
  • Pollen grain
The portion of stem present between two nodes is called _________.
  • Axil
  • Internode
  • Axillary bud
  • Apical bud
Inflorescence in which flowers develop from different places of the peduncle reach the same level, is
  • Catkin
  • Corymb
  • Umbel
  • Raceme.
Cells which carry minerals from roots to leaves are made of 
  • Cells which can divide
  • Cells which cannot grow
  • Cells which perform photosynthesis
  • All of the above
Roots breathe through
  • Stomata
  • Lenticels
  • Spiracles
  • Root hair
Pistils are also called 
  • Calyx
  • Corolla
  • Androecium
  • Gynoecium
Identify the wrong statement.
  • A plant that bears male, female and bisexual flowers is polygamous
  • Actinomorphic flower can be dissected into two equal halves from any plane
  • Superior ovary is found in hypogynous flowers
  • Side of the flower towards the bract is called posterior side
Oil yielding legume is _____________.
  • Carthamus
  • Glycine max
  • Ricinus
  • Vigna sinesis
The most important function of inflorescence is to help in
  • Dispersal of seeds
  • Help in fertilization
  • Attracting insects for pollination
  • Forming large number of fruits
Spathe is present in the flowers of
  • Banana
  • Rice
  • Marigold
  • Sunflower
The thing that is common between gourd, passion flower and grapevine is 
  • They all have roots modified to store food.
  • They all have prop roots.
  • They all have tendrils.
  • They all have leaves modified as thorns.
A racemose type of inflorescence with its main axis almost flat is called ____________.
  • Corymb
  • Umbel
  • Spike
  • Capitulum
Which one of the following statements is correct ? 
  • In tomato, fruit is a capsule
  • Seeds of orchids have oil-rich endosperm
  • Placentation in primose is basal
  • Flower of tulip is a modified shoot
You are part of a scientific expendition that has ventured deep into the Amazon rain forest. You spot a tree with branches spread over a large area. What can you conclude about the root structure of the tree?
  • It is dicotyledonous
  • It is monocotyledonous
  • It may be either monocotyledonous or dicotyledonous
  • There is no correlation between foliage and root structure
Fruit formed from an inflorescence is
  • Simple fruit
  • Pseudo carp
  • Composite fruit
  • Aggregate fruit
Seeds which are used as Jeweller's weight ______________.
  • Xanthium
  • Abrus precatorius
  • Calotropis
  • Thespasia
Which is true ________________________.
  • Umbel is racemose inflorescence where stalked flowers aggregate on a flat receptacle
  • In receme the main axis is shortened and flowers are borne acropetally
  • Spadix is a pendulous spike with main axis much flattened
  • Spike is a racemose inflorescence having sessile flowers.
Which of the following manufactures the food and supplies it to other floral parts?
  • Sepals
  • Petals
  • Anther
  • Stigma
The fleshy, flat, leaf like green structures in cactus plants are
  • Modified leaves with thorns
  • Modified flowers which perform photosynthesis
  • Stems modified to thorns
  • Stems modified to synthesise food by photosynthesis
The roots of a turnip plant are swollen and fleshy because
  • They store water
  • They are swollen to give extra strength to the root system
  • They store food
  • None of the above
Tendrils are
  • Stems modified to store the food
  • Stems modified into coiled wires
  • Stems modified into prop roots
  • Roots modified to perform photosynthesis
The stem is modified to store the food in
  • Potato
  • Carrot
  • Turnip
  • Dahlia
When the filament of anther is fixed at a point about the middle of the connective and the movement is free in the sac is called as ______
  • Versatile
  • Basifixed
  • Adnate
  • Dorsifixed
To prevent the loss of water, the leaves of cactus plants are modified into
  • Scaly leaves
  • Tendrils
  • Spines
  • Prop roots
Inflorescence of Ficus is
  • Spike
  • Hypanthodium
  • Raceme
  • Verticillaster
............ root system is present in most of the dicot plants.
  • Fibrous
  • Tap
  • Tuberous
  • Stilt
Calotropis is the botanical name for
  • Lotus
  • Jasmine
  • Milkweed
  • Oleander
In monocots, ............ root system is observed.
  • Tap root
  • Fibrous root
  • Both A & B
  • Adventitious roots
State whether the following statement is true or false.
Hydrotropism is important for plants.
  • True
  • False
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