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10Plants require hormones for growth and development.
Plant hormones are nutrients for plants.
Plants respond to light, gravity and touch.
Plant hormones act as chemical messengers.
Hormones are needed in all parts of plant at the same time.
Auxin is produced mainly at the tip of shoot.
Phototropism is the growth of plant towards light.
Cytokinin is found in high amount in root tip and fruits.
Environmental factors do not affect plant growth.
Improper use of plant hormones may cause health problems.
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Which hormone is responsible for ripening of fruit?
Which hormone causes apical dominance in plants?
Which hormone is involved in ripening of fruit and abscission of leaf?
Which hormone helps the shoot grow towards light?
What type of response is shown by plants towards light?
Which hormone is commonly used in tissue culture?
Plant hormones are mainly required for:
Which part of plant produces most growth hormones?
Which factor directly affects plant growth internally?
Excessive use of plant hormones in crops may cause:
Hormones that regulate plant growth are called ______ growth hormones.
Plant hormones are ______ messengers.
Growth of sunflower towards light is called ______.
Auxin is produced at the tip of ______.
Cytokinin is found in ______ and fruits.
Internal factor affecting plant growth is ______.
Plants respond to environmental ______.
Tissue culture uses a mixture of ______ and cytokinin.
Excess use of plant hormones may create ______ hazards.
Plant hormones help in growth and ______.