1 |
CNS is composed of |
Sensory neuron
Associative neuron
Dendrites
Motor neuron
|
2 |
How many type of receptors are present in skin. |
Three
Six
Five
Two
|
3 |
Nociceptors produce sensation of |
Touch
Pain
Warmth
Pressure
|
4 |
Pathway of passage of impulse during reflex action is called. |
Reflex
Reflex arc
Stimulus
Membrane potential
|
5 |
The sensation of pain is produced by |
Chemoreceptors
Photoreceptors
Nociceptors
Mechanoreceptors
|
6 |
The structure which respond are called. |
Effectors
Nerves
Receptors
Sense organs
|
7 |
Nissl's granules are group of. |
Mesosomes
Lysosomes
Ribosomes
chromosomes
|
8 |
Flowering is induced in pineapple by growth hormone called. |
Gibbereiline
Abscisic acid
Ethene
Cytokinins
|
9 |
Apical dominance is cause by. |
Gibberellins
Cytokinins
Auxins
Ethene
|
10 |
Selective weed killer |
2-4 D
I AA
NAA
IPA
|
11 |
Ethene induce flowering in |
Banana
Rose
Pine apple
Orange
|
12 |
The hormone which inhibits root growth is. |
auxins
gibberellins
Absclsic acid
Cytokinins
|
13 |
Promotes closing of stomata under conditions water stress. |
Etthene
Abscisic acid
Cytokinnins
Gibberellins
|
14 |
___ are indole acetic acid or its variants. |
auxins
Gibberellins
Cytokinine
Ethene
|
15 |
The plant hormone that inhibit the growth lateral shoots. |
Cytokine
Auxin
Gibberellin
Ethene
|
16 |
Etiolated plants grow without. |
Water
Light
O2
CO2
|
17 |
Galls are growth on a plant that are induced by |
Ticks
Protozoons
Parasites
Fungi
|