問題一覧
1
Plantae classified into two what are they
cryptogammae and phanerogamme
2
What is cryptogamme
plants which they do not have flowers or seeds
3
What is phanerogammae
plants which has flowers and seeds are called phanerogammae
4
Cryptogammae are classified into 3 what are they
thallophyta, brayophyta, pteridophyta
5
What is thallophyta
largest group in plant kindom
6
Example for thallophyta
algea and lichen
7
3 points about algea
they are autotropic contain chlorophyll study of algae are called phycology
8
Study of fungi is called
mycology
9
Rhodophyceae group members are commonly called
red algea
10
Metal used for control algea are called
copper
11
What is bryophyta plants
its is the first group of land plants no xylem, phloem, true roots, stem and leaves its is the amphibian catagory of plant kingdom example :- mosses
12
Amphibian catagory of of plant kindom is
bryophyta
13
Example for pteridophyta
ferns, azolla, marsilea
14
Reproduction of ferns through
spores
15
Thallophyta യിൽ നിന്നും bryophyta യിൽ നിന്നും pteridophyta എങ്ങനെ വത്യാസ പെട്ടിരിക്കുന്നു
it has separate leaves stem and root
16
Phanerogammae are classified into two what are they
gymnosperms angiosperms
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Whats in gymnosperms
naked seeds
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What is angiosperms
coated seeds
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angiosperms are classified into two
monocotyledons dicotyledon
20
Monocotyledons plant roots are
fibres root
21
Dicotyledon plant roots are
tap roots
22
Two type of venation on plant leaves
parallel venation reticulate venation
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Parallel venation present in which type
monocotyledons
24
Venation present in dicotyledon plans
reticulate venation
25
Study of different parts of plant is called
morphology
26
Roots are developed from
radicle
27
Stems are developed from
plumule
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3 type of roots
tap root fibrous root adventitous root
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2 points about plant stem
stems are developed from plumule they are phototropic
30
4 plant stem modifications
tuber - potato bulb - onion, garlic corm colocasia rhizome - turmeric ginger
31
Cactus spines are developed from
leaves
32
Reproductive part of plant or tree is
flower
33
What is inflorescence
ath arrangement of flowers in a floral axis
34
The arragement of flowers in the floral axis is called
inflorescence
35
Male sex orgen in flower
androecium
36
Female sex organ in flower
gynoecium
37
What is androecium
anther + filament is called
38
Another name of androecium
stamen
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Where is pollen grains are seen
anther
40
Advantitious roots are seen on mangrove
pneumatophores
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Another name of gynoecium
carpel
42
What is carpel
combination of stigma style ovary is called
43
What is pollination
transfer of pollen grains from stigma to overy is called pollination
44
What are 2 type of pollination
self pollination cross pollination
45
3 stages of reproduction process in plants
pollination, fertilization, seed dispersal
46
Wind വഴിയുള്ള പോളിനേഷൻ അറിയപ്പെടുന്നത്
anemophiy
47
Water വഴിയുള്ള പോളിനേഷൻ അറിയപ്പെടുന്നത്
hydrophily
48
Insects വഴിയുള്ള പോളിനേഷൻ അറിയപ്പെടുന്നത്
entomophily
49
Birds വഴിയുള്ള പോളിനേഷൻ അറിയപ്പെടുന്നത്
ornithophily
50
Bats വഴിയുള്ള പോളിനേഷൻ അറിയപ്പെടുന്നത്
chiropterophily
51
Other vertebrates വഴിയുള്ള പൊള്ളിനേഷൻ അറിയപ്പെടുന്നത്
zoophily
52
Snail വഴിയുള്ള പോലീനേഷൻ അറിയപ്പെടുന്നത്
malacophily
53
Ants വഴിയുള്ള പോളിനേഷൻ അറിയപ്പെടുന്നത്
myrmecophily
54
After fertizilation overy convert to form
fruit
55
After fertilization ovule convert to form
seed
56
Nutritive tissue for the gowing embryo in plants
endosperm
57
The process of Fruit developed from ovary without fertilization is called
asexual reproduction
58
root, stem, and leaves of some plants grow new plants through process
vegetative propagation / vegetative reproduction
59
Example for vegetative propagation of plants through leaves
bryophyllum
60
Development of fruit without fertilization is called
parthenocarpy
61
Parthenocarpy വഴിയുണ്ടാവുന്ന fruit അറിയപ്പെടുന്നത്
virgin fruit
62
Parthenocarpy വഴിയുണ്ടാവുന്ന fruit ന്റെ പ്രത്യേകത
seed less
63
Plant growth hormones
auxins cytokinins gibberellins
64
Plant growth inhibitors hormones
ethylene abscissic acid
65
Auxin hormone is discovered by
charles darwin
66
Plant bend towards light due do ( hormone name )
auxin
67
Auxin hormone cconcentration on plants
concentration high at top and low at bottom
68
Chemically auxin
IAA ( indole 3 acetic acid ) IBA ( indole butyric acid )
69
First discovered plant hormone
auxin
70
Functions of cytokinin hormone
helps in rapid cell division.. cytokinins helps to increase mitosis activity
71
Hormone that help break seed dormancy
gibberlin
72
Abscisic acid ന്റെ purpose എന്താണ്
seed dormancy
73
Plant hormone that exsist in gaseous state
ethylene
74
Plant hormone that help for ripening of fruit
ethylene
75
Gas used for artificial ripening
enthylene
76
Chemical used for artifical ripening of fruit
calcium carbide
77
Hormone that produced in injured plant
traumatin
78
Hormone that helps in flowering of plants
florigens
79
Plant tissue are classified into two
meristematic, permanent
80
Meristematic plant tissue classified into 3 whats are they
apical, intercalary, lateral,
81
What is the purpose of apical meristem
it is found in tip of the plant. the purpose is used to increae length of the plant
82
What is lateral meristem?
it is found in the sides of the plant. to increase width of the plant
83
What is the purpose of intercalary meristem?
it help to the stem enlongation in plants
84
Permanent plant tissue are classified into two
simple and complex
85
Simple plant tissue are classified into 3 what are they
parenchyma, collenchyma, sclerenchyma
86
Complex plant tissue are classified into two
xylem and pholem
87
What is parenchyma
this tissue is used to build soft part in plant. help in photosynthesis and food storage
88
Tissue that offer flexibility with the structural framework and mechanical support in plants
collenchyma
89
Tissue that seen in dead cells
sclerenchyma
90
Plant tissue that seen in covering of seeds and nuts
sclerenchyma
91
Sclerenchyma walls are thickened due to
lignin
92
Collenchya tissues are thickened at the corners with
cellulose and pectin
93
What is the purpose of xylem
it is a vessel that conduct water and mineral from root to stem and leaves
94
What is the purpose of phloem
conduct food prepared by leaves to different parts of the plant
95
Gaseous exchange in plants takes place through
stomata
96
Stomata found in
under the leaf
97
What is transpiration
process of escape of water from leaf to the atmosphere in the form of water vapour through stomata
98
Plants get water through roots is called
capillarity
99
The process of get rid of excess water in the plants
transpiration
100
Purpose of guard cell
regulate the rate of transpiration by opening and closing the stomata