Q.1.
Which of the following statement is true for abscisic acid ?
-
0%
a) Acts as weedicide
-
0%
b) Inhibits transcription of gene
-
0%
c) Reduces senescence
-
100%
d) Opens stomata
Q.2.
Give full form of 2-4-D
-
0%
a) 2-4 dichloro butyric acid
-
0%
b) 2-4 dichloro nepthalic acetic acid
-
33%
c) 2-4 dichloro ethylenic acid
-
67%
d) 2-4 dichloro phenoxy acetic acid
Q.3.
Which are the part labelled as A, B and C sequentially in the figure ?
-
0%
a) Plumule, radicle, cotyledon
-
0%
b) Seed coat, cotyledon, plumule
-
50%
c) Seed coat, Endosperm, plumule
-
50%
d) Cotyledon, plumule, embryo
Q.4.
Which is the correct sequence for different phases of growth?
-
50%
a) Cell differentiation- cell elongation- cell formation
-
0%
b) Cell differentiation- cell formation- cell elongation
-
0%
c) Cell formation of cell differentiation- cell elongation
-
50%
d) Cell formation - cell elongation- cell differentiation
Q.5.
Demonstration of cytoplasmic movement in living cell can be observed in ........
-
50%
a) Leaf cells of tradescantia
-
0%
b) Cells of vascular bundle
-
50%
c) Onion cells
-
0%
d) Medullary cells
Q.6.
From the given below which is short-day plant ?
-
0%
a) Wheat
-
0%
b) Oat
-
0%
c) Paddy
-
100%
d) Opium
Q.7.
Ethylene is responsible for
-
0%
a) Flowering
-
0%
b) Formation of fruits
-
0%
c) Disease in roots
-
100%
d) Ripping of fruits
Q.8.
Which hormones are obtained from fungi and fish, respectively ?
-
67%
a) Gibberrelin and 2-4 D
-
0%
b) Gibberrelin and cytokinin
-
33%
c) IAA and IBA
-
0%
d) Gibberrelin and zeatin
Q.9.
Which of the following hormone is responsible for cell division ?
-
0%
a) IAA
-
0%
b) GA
-
50%
c) Abscisic acid
-
50%
d) Cytokinin
Q.10.
Which hormone is responsible for apical dominance?
-
100%
a) Auxin
-
0%
b) Ethylene
-
0%
c) Gibberrelin
-
0%
d) Cytokinin
Q.11.
In the absence of light, amount of which of the following is increased ?
-
0%
a) Absorption of mineral salts
-
0%
b) Absorption of water
-
50%
c) Elongation of internodes
-
50%
d) Ascent of sap
Q.12.
hich apparatus is used for measurement of growth ?
-
0%
a) Potometer
-
100%
b) Auxanometer
-
0%
c) Photometer
-
0%
d) Hydrometer
Q.13.
What is indicated by any of the developing plant if it increase / hyperactivity in lateral buds ?
-
50%
a) It stores more food
-
0%
b) It obtains more light
-
50%
c) Auxin decreases
-
0%
d) Cytokinin decreases
Q.14.
How gibberrelin accelerates seed germination ? (AIIMS 2005)
-
50%
a) Abscisic acid
-
0%
b) Absorption of water from hard seed coat
-
0%
c) By the synthesis of digestive juice
-
50%
d) By effecting rate of cell division
Q.15.
Which hormone affects the growth of plant in adverse climatic / environmental condition ?
-
50%
a) 2-4, D
-
0%
b) Ethylene
-
50%
c) Abscisic acid
-
0%
d) NAA
Q.16.
Motor cells of leaves and grass, shows which type of movement ? (AIIMS-1996)
-
50%
a) Osmotic movement
-
0%
b) Growth movement
-
0%
c) Locomotory movement
-
50%
d) Nastic movement
Q.17.
Which of the following type is improper for nastism ?
-
0%
a) Hydronasty
-
50%
b) Thermonasty
-
0%
c) Photonasty
-
50%
d) Phototropism
Q.18.
Growth regulators are chemically ........
-
50%
a) Minerals
-
0%
b) Inorganic chemicals
-
50%
c) Organic chemicals
-
0%
d) Vitamins
Q.19.
What is initiative substance of IAA?
-
50%
a) Phehyl alamine
-
50%
b) Tryptophan
-
0%
c) Tyrosine
-
0%
d) Lucine
Q.20.
What is 2-4 D ?
-
50%
a) Weedicide
-
0%
b) Insecticide
-
50%
c) Rodenticide
-
0%
d) Wormicide
Q.21.
Which hormone is responsible for bolting ?
-
50%
a) Auxin
-
50%
b) Gibberrelin
-
0%
c) Cytokinin
-
0%
d) Ethylene
Q.22.
Which of the following physiological process performed by gibberrelic acid?
-
50%
a) Yellowing of young leaves
-
50%
b) Dwarfism of tall plant genetically
-
0%
c) Growth in size of stem and root formation
-
0%
d) Elongation of short plant genetically
Q.23.
Which hormone is synthesized by root and endosperm?
-
0%
a) Ethylene
-
50%
b) Cytokinin
-
50%
c) Gibberrelin
-
0%
d) Auxin
Q.24.
Match the list :
| Column I | Column II |
| (P) Lotus and sunflower | (i) Hydronasty |
| (Q) Crocus and tulip | (ii) Thigmonasty |
| (R) Due to turgidity of leauses | (iii) Thermonasty |
| (S) Mimosa | (iv) Photonasty |
-
0%
a) (P-iv), (Q-iii), (R-i), (S-iii)
-
50%
b) (P-i), (Q-ii), (R-iii), (S-iv)
-
0%
c) (P-ii), (Q-iii), (R-iv), (S-i)
-
50%
d) (P-i), (Q-iii), (R-ii), (S-iv)
Q.25.
Which of the following plant shows rotational movement ?
-
0%
a) Chlamydomonas
-
0%
b) Hydrilla
-
50%
c) Volvox
-
50%
d) Mucilagenous fungi
Q.26.
Which of the following show movement by chemical ?
-
0%
a) Male gametes of bryophytes and pteridophytes
-
0%
b) Male gamets of fungi and algae
-
100%
c) Male gametes of gymanosperm and and angiosperms
-
0%
d) Flower of tulip and croccus
Q.27.
Which hormone inhibits senescence of vegetative parts and plants ? Explanation is providede please click on
-
0%
a) Auxin
-
0%
b) Cytokinin
-
50%
c) Gibberrelin
-
50%
d) Abscisic acid
Q.28.
State the full form of IAA (NCRT 1974)
-
50%
a) Indole- 3 acetic anhydrase
-
50%
b) Indole-3 acetic acid
-
0%
c) Indole- 3 aceto acetate
-
0%
d) Indole-3 aceto-acetic
Q.29.
One plant group kept for 12 hrs in day and 12 hrs in night and flowering is observed in it. Another plant group is kept similarly for day - night period and for very short time light is given during dark period it do not flower. What is such type of plant called ? (CBSE 2004)
-
0%
a) Medium-day plants
-
100%
b) Long-day plants
-
0%
c) Day-neutral plants
-
0%
d) Short-day plants
Q.30.
If apical region of stem is removed from any plant, what is observed?
-
0%
a) Plant dies
-
50%
b) Lateral branches emerges
-
50%
c) New apical bud formation
-
0%
d) Length of main stem increases
Q.31.
Which of the following option shows an examples of cilliary movement ?
-
33%
a) Slime mould
-
0%
b) Chlamydomonas
-
0%
c) Zoo spores and Bryophyta
-
67%
d) All the three a, b, c
Q.32.
In which structure thigmonasty is observed in simple form ?
-
0%
a) Shoot apex
-
0%
b) Leaf apex
-
0%
c) Root apex
-
100%
d) Leaf tendril
Q.33.
What is agent Orange ? (CBSE 1998, AIMS 1999)
-
0%
a) Insectide which is biodegradable
-
0%
b) Colour used in tube light
-
0%
c) Weedicide with dioxin
-
100%
d) Chemical used in luminiscent plant
Q.34.
Which of the hormone is synthetic ? ( AIIMS 1996,)
-
0%
a) GA2
-
0%
b) GA3
-
50%
c) IAA
-
50%
d) 2-4 D
Q.35.
Which chemical induces formation of adventitious roots ?
-
33%
a) Cytokinins
-
33%
b) Gibberrelin
-
0%
c) Abscisic acid
-
33%
d) IAA
Q.36.
Spiral developement of tendrils?
-
67%
a) Thigmotropism
-
0%
b) Thermotropism
-
33%
c) Hydrotropism
-
0%
d) Phototropism
Q.37.
What is the direction of tropism ?
-
50%
a) Directional
-
0%
b) Straight
-
50%
c) Undirectional
-
0%
d) Oblique
Q.38.
Match the list :
| Column I | Column II |
| (P) Plasmodium of slime mould | (i) Ciliary movement |
| (Q) Chlamydomonas algae | (ii) Circular movement |
| (R) protoplasm of tradenschantia leaf | (iii) Rotational movement |
| (S) Protoplasm of hydrilla | (iv) Amoeboid movement leaves |
-
50%
a) (P-i), (Q-ii), (R-iii), (S-iv)
-
50%
b) (P-iv), (Q-iii), (R-iv), (S-i)
-
0%
c) (P-iv), (Q-i), (R-ii), (S-iii)
-
0%
d) (P-iv), (Q-ii), (R-i), (S-iii)
Q.39.
One plant group kept for 12 hrs in day and 12 hrs in night and flowering is observed in it. Another plant group is kept similarly for day - night period and for very short time light is given during dark period it do not flower. What is such type of plant called ? (CBSE 2004)
-
0%
a) Medium-day plants
-
100%
b) Short-day plants
-
0%
c) Long-day plants
-
0%
d) Day-neutral plants
Q.40.
Which hormone is responsible for growth of leaf-apex ?
-
50%
a) IAA
-
50%
b) Zeatin
-
0%
c) Gibberrelin
-
0%
d) Ethylene
Q.41.
What is the required temperature for growth in most of the plants?
-
0%
a) 20-30°C
-
50%
b) 15-20°C
-
0%
c) 10-15°C
-
50%
d) 35-40°C
Q.42.
Name the hormone responsible for activity of chlorophyll in leaves.
-
0%
a) Gibberrelin
-
50%
b) Cytokinin
-
50%
c) ABA
-
0%
d) Ethylene
Q.43.
Vernalization is
-
0%
a) Daily photo period
-
100%
b) Effect of photoperiod on the growth of plant, which results flowering
-
0%
c) Rapid growth in low temperature
-
0%
d) Growth graph related to light
Q.44.
Which of the following is used to enhance colour of fruits and more juice in fruits unnaturally?
-
0%
a) kinetin
-
50%
b) Sodium chloride
-
0%
c) IAA
-
50%
d) Ethylene gas
Q.45.
With, what nutation is related ?
-
50%
a) Induced curvature movement
-
0%
b) Autonomous movement
-
50%
c) Autonomous curvature movement
-
0%
d) Induced movement
Q.46.
By which physiological process water enters into seed coats of seed ?
-
100%
a) Plasmolysis
-
0%
b) Imbibition
-
0%
c) Endosmosis
-
0%
d) Diffusion
Q.47.
If temporary light is made available for dark phase of long day plant, what is observed ?
-
0%
a) Flowering will not occur
-
0%
b) No change
-
50%
c) Decreasing in flowering
-
50%
d) Increase in flowering
Q.48.
What is the rate of respiration during seed germination ?
-
50%
a) Rapid
-
50%
b) Steady
-
0%
c) Slow
-
0%
d) Zero
Q.49.
Where is phytochrome pigment present ?
-
0%
a) Bryophyta
-
0%
b) Fungi
-
33%
c) Algae
-
67%
d) Phanerogams