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Reproduction in plants

Reproduction in plants

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Question 1
The method of reproduction in unicellular organisms like amoeba and bacteria in which they split into two equal halves and produce new ones is called________
A
fragmentation
B
binary fission
C
budding
D
spore formation
Question 2
In sexual reproduction of flowering plants, the first event involved in this is _______
A
fertilization
B
germination
C
regeneration
D
pollination
Question 3
Which of the following statement is true?
A
Thin-walled non-mobile spores are called zoospores.
B
A motile asexual spore produced by some algae, bacteria and fungi are Akinetes.
C
Uninucleate, non-motile, asexual spores produced by fungs are called conidia.
D
Thick-walled vegetative cells produced by algae during adverse conditions are called aplanospores
Question 4
The fertilized ovary is a fruit. The fruit that develops from a single flower with multicarpellary, apocarpous superior ovary is____________
A
Aggregate fruit
B
Composite fruit
C
Simple fruit
D
Multiple fruit
Question 5
If a water soaked seed is pressed, a small drop of water comes out through the_______
A
stomata
B
lenticels
C
micropyle
D
radical
Question 6
The mango fruit is called a stone fruit because it has________
A
skinny epicarp
B
stony mesocarp
C
fleshy endocarp
D
hard endocarp
Question 7
Pick out the wrong statement.
A
In a dicot seed there is a short longitudinal whitish ridge called the raphae.
B
The minute opening in a dicot seed is known as micropyle.
C
The rudimentary stem portion is known as radical.
D
The rudimentary root portion is called radical.
Question 8
Consider the following statements regarding the dispersal of fruits and seed by wind and select the correct answer.
A
Fruits and seeds are dispersed with a sudden jerk by an explosive mechanism.
B
The fruits of tridax carry a persistent calyx modified into pappus
C
The fruits of xanthium have sharp pointed stiff hooks
D
The mesocarp of coconut is fibrous.
Question 9
The product of triple fusion which acts as nutritive tissue for the development of an embryo is ________
A
zygote
B
placenta
C
scutellum
D
endosperm
Question 10
The disadvantage of self-pollination is _______
A
There is no wastage of pollen grains
B
The seeds are less in number
C
Self-pollination is sure in bisexual flowers
D
flowers need not depend on agents of pollination
Question 11
The flower is important to a plant because it helps in_________
A
attracting
B
production of nectar
C
pollination
D
sexual reproduction
Question 12
The essential organs of the flower are________
A
Calyx and Corolla
B
Androecium and Gynoecium
C
Calyx and Androecium
D
Corolla and Gynoecium
Question 13
Cross pollination is important for producing________
A
new varieties of plants
B
plants with better growth
C
disease resistant plant
D
all of the above
Question 14
Anemophily occurs in______
A
Vallisneria
B
Grass
C
Coconut
D
Datura
Question 15
Which of the following structure/ arrangement favours entamophily?
A
Pollen grains with wings and feathery stigma
B
Colourful petals and nectar secretion
C
A bunch of flowers with less pollen
D
Pollen grains with mucous covering
Question 16
Post-fertilization, the changes into a/an________
A
seed
B
fruit
C
endosperm
D
pericarp
Question 17
Which of the following is correctly matched?
A
False fruit-mango
B
Multiple fruit-apple
C
Aggregate fruit-polyalthia
D
Caryopsis-banana
Question 18
Identify the mismatched pair.
A
Legume-Dry dehiscent fruit
B
Cypsela- Dry indehiscent fruit
C
Pome- Fleshy fruit
D
Regma- Resembles legume
Question 19
Conversion of milk into curd takes place by __________
A
Lactobacillus
B
Acetobacter
C
Streptococcus
D
Staphylococcus
Question 20
These algae undergoes fragmentation and each fragment grows into a new individual_____________
A
Diatoms
B
Spirogyra
C
Moss
D
Funaria
Question 21
Hydra reproduce by_________
A
Binary fusion
B
Fragmentation
C
Stem cutting
D
Budding
Question 22
_________ is the male part of a flower.
A
Ovary
B
Stigma
C
Androecium
D
Carpels
Question 23
Gynoecium has three parts namely__________
A
astigma, pollen and ovary
B
stigma, style and ovary
C
anther, filament and pollen
D
filament, stamen and stigma
Question 24
Self pollination is also known as _______
A
autogamy
B
autochory
C
allogamy
D
allograft
Question 25
There is no wastage of pollen grain when ________ takes place.
A
self pollination
B
cross pollination
C
self and cross pollination
D
none of the above
Question 26
Pollination by birds is called ________
A
Chiropterophily
B
Zoophily
C
Ornithophily
D
Anemophily
Question 27
In grass and pine, pollination takes place by ________
A
water
B
birds
C
wind
D
bat
Question 28
The fertilized egg is known as _______
A
zygote
B
embryo
C
seed
D
fruit
Question 29
The secondary nucleus is _______ in nature
A
haploid
B
diploid
C
triploid
D
neither haploid nor diploid
Question 30
The fruit wall is called________
A
epicarp
B
mesocarp
C
endocarp
D
pericarp
Question 31
Seedless grapes develop______
A
with the help of gametes
B
without the act of fertilization
C
after fertilization
D
from the endosperm
Question 32
Dry indehiscent fruits ______ open at maturity and the seeds are liberated by the secay of pericarp
A
split
B
do not split
C
sometimes split
D
mericarp
Question 33
In ________ the aggregate fruit has a cluster of fruitlets attached to a common stalk.
A
Annona squamosa
B
Paddy
C
Polyalthia
D
Coconut
Question 34
._______ is a simple fleshy fruit which develops from multicarpellary, superior  ovary with axile placentation.
A
Tomato
B
Orange
C
Apple
D
Mango
Question 35
In _______, the thalamus becomes fleshy and develops into an edible fruit.
A
apple
B
orange
C
cucumber
D
mango
Question 36
Paddy is an example of simple indehiscent ________ fruit known as_____
A
one seeded, caryopsis
B
many seeded, caryopsis
C
many seeded, syconus
D
one seeded, capsule
Question 37
The root sheath is _____
A
coleorrhiza
B
coleptile
C
chaff
D
scutellum
Question 38
The roots formed from the lower nodes of the stem are called_____
A
tap root
B
fibrous root
C
adventitious roots
D
root hairs
Question 39
seeds with two cotyledons________
A
monocotyledon
B
dicotyledon
C
embryo
D
radical
Question 40
Fruits of this plant carry a persistent calyx modified into a pappus which aids in the dispersal by wind________
A
coconut
B
tridax
C
drumstick
D
lotus
Question 41
Can a female sheep alone produce new young ones?
A
No, it needs a male sheep to produce young ones
B
It can produce ones of left its own
C
Vegetative propagation produce young ones
D
Through the aplanospores
Question 42
A seed dispersed by wind is called______
A
Autochory
B
Anemochory
C
Hydrochory
D
Zoochory
Question 43
Match the following.
  1. Berry                 a. Orange
  2. Hesperidium b. Cucumber
  3. Pome               c. Apple
  4. Pepo                 d. Tomato
A
2 4 3 1
B
3 1 4 2
C
3 4 2 1
D
1 4 2 3
Question 44
Match the following.
  1. Lomentum a. Coriandrum
  2. Cremocarp   b. Fig
  3. Sorosis         c. Acacia
  4. Syconus    d. Jack fruit
A
2 4 3 1
B
3 4 2 1
C
2 4 1 3
D
1 4 2 3
Question 45
Match the following.
  1. Aplanospores     a. Uninucleate, non-motile asexual
  2. Zoospore            s b. Secrete thick additional wall layer
  3. Akinetes             c. Non-motile, ovoid bodies
  4. Conidia               d. Motile, asexual, flagellum
A
4 3 2 1
B
3 4 2 1
C
2 4 1 3
D
1 4 2 3
Question 46
Match the following.
  1. Binary fission    a. Bryophyllum
  2. Fragmentation   b. Bacteria
  3. Budding               c. Penicillium
  4. Spore Formation d. Spirogyra
A
4 3 2 1
B
3 4 2 1
C
3 1 4 2
D
1 4 2 3
Question 47
Match the following.
  1. Multiple fruit      a. custard apple
  2. Aggregate fruit     b. allogamy
  3. Self pollination    c. autogamy
  4. Cross pollination   d . jack fruit
A
1 4 2 3
B
3 4 2 1
C
3 1 4 2
D
2 4 3 1
Question 48
Match the following.
  1. Calyx                 a. Stamens
  2. Androecium    b. Carpels
  3. Corolla            c. Sepals
  4. Gynoecium     d. Petals
A
1 4 2 3
B
3 4 2 1
C
2 4 1 3
D
2 4 3 1
Question 49
Match the following.
  1. Zoophily         a . Birds
  2. Hydrophily    b. Air
  3. Anemophily     c. Insects
  4. Ornithophily     d. Animals
  5. entamophily     e. Water
A
1 4 2 3 5
B
4 3 5 1 2
C
5 2 4 1 3
D
2 4 5 3 1
Question 50
Match the following.
  1. Achene a. Cashewnut
  2. Caryopsis b. Tridax
  3. Cypsela c. Paddy
  4. Nut d. Mirabilis
A
1 4 2 3
B
4 3 2 1
C
2 4 1 3
D
2 4 3 1
Question 51
Match the following.
  1. autochory a. Wind dispersal
  2. Anemochory b. Dispersal by water
  3. Hydrochory c. Dispersal by animals
  4. Zoochory d. Explosive mechanism
A
2 3 4 1
B
2 4 3 1
C
2 4 1 3
D
4 3 2 1
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