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