NEET Test Series from KOTA - 10 Papers In MS WORD
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BIOXI15: PLANT GROWTH AND DEVELOPMENT
338175
According to hypothesis, which substances are responsible for photoperiodism?
1 Flower itself
2 Abscisic acid
3 Gibberellins
4 Hormonal substance
Explanation:
It has been hypothesised that there is a hormonal substance(s) that is responsible for flowering. This hormonal substance migrates from leaves to shoot apices for inducing flowering only when the plants are exposed to the necessary inductive photoperiod.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338176
The photoperiod in plants is perceived at
1 Meristem
2 Flower
3 Floral buds
4 Leaves
Explanation:
Leaves are the main recipients of light energy and thus are the main player in photo period.
NCERT Exemplar
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338177
What is more important of these for flowering?
1 Light period
2 Dark period
3 Both (1) and (2)
4 None of these
Explanation:
The duration of light period as well as duration of dark period is of equal importance. Hence, it can be said that flowering in certain plants depends not only on a combination of light and dark exposures but also their relative durations.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338178
Observe the following diagram carefully and classify the plants with respect to photoperiodism____
1 P-Day neutral plants, Q- Short day plants, R- Long day plants
2 P- Long day plants, Q- Short day plants, R- Day neutral plants
3 P- Short day plants, Q- Long day plants, R- Day neutral plants
4 P-Short day plants, Q- Day neutral plants, R- long day plants.
Explanation:
The given diagram is showing photoperiodism : P- Long day, Q- short day and R- day neutral plants.
338175
According to hypothesis, which substances are responsible for photoperiodism?
1 Flower itself
2 Abscisic acid
3 Gibberellins
4 Hormonal substance
Explanation:
It has been hypothesised that there is a hormonal substance(s) that is responsible for flowering. This hormonal substance migrates from leaves to shoot apices for inducing flowering only when the plants are exposed to the necessary inductive photoperiod.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338176
The photoperiod in plants is perceived at
1 Meristem
2 Flower
3 Floral buds
4 Leaves
Explanation:
Leaves are the main recipients of light energy and thus are the main player in photo period.
NCERT Exemplar
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338177
What is more important of these for flowering?
1 Light period
2 Dark period
3 Both (1) and (2)
4 None of these
Explanation:
The duration of light period as well as duration of dark period is of equal importance. Hence, it can be said that flowering in certain plants depends not only on a combination of light and dark exposures but also their relative durations.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338178
Observe the following diagram carefully and classify the plants with respect to photoperiodism____
1 P-Day neutral plants, Q- Short day plants, R- Long day plants
2 P- Long day plants, Q- Short day plants, R- Day neutral plants
3 P- Short day plants, Q- Long day plants, R- Day neutral plants
4 P-Short day plants, Q- Day neutral plants, R- long day plants.
Explanation:
The given diagram is showing photoperiodism : P- Long day, Q- short day and R- day neutral plants.
338175
According to hypothesis, which substances are responsible for photoperiodism?
1 Flower itself
2 Abscisic acid
3 Gibberellins
4 Hormonal substance
Explanation:
It has been hypothesised that there is a hormonal substance(s) that is responsible for flowering. This hormonal substance migrates from leaves to shoot apices for inducing flowering only when the plants are exposed to the necessary inductive photoperiod.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338176
The photoperiod in plants is perceived at
1 Meristem
2 Flower
3 Floral buds
4 Leaves
Explanation:
Leaves are the main recipients of light energy and thus are the main player in photo period.
NCERT Exemplar
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338177
What is more important of these for flowering?
1 Light period
2 Dark period
3 Both (1) and (2)
4 None of these
Explanation:
The duration of light period as well as duration of dark period is of equal importance. Hence, it can be said that flowering in certain plants depends not only on a combination of light and dark exposures but also their relative durations.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338178
Observe the following diagram carefully and classify the plants with respect to photoperiodism____
1 P-Day neutral plants, Q- Short day plants, R- Long day plants
2 P- Long day plants, Q- Short day plants, R- Day neutral plants
3 P- Short day plants, Q- Long day plants, R- Day neutral plants
4 P-Short day plants, Q- Day neutral plants, R- long day plants.
Explanation:
The given diagram is showing photoperiodism : P- Long day, Q- short day and R- day neutral plants.
338175
According to hypothesis, which substances are responsible for photoperiodism?
1 Flower itself
2 Abscisic acid
3 Gibberellins
4 Hormonal substance
Explanation:
It has been hypothesised that there is a hormonal substance(s) that is responsible for flowering. This hormonal substance migrates from leaves to shoot apices for inducing flowering only when the plants are exposed to the necessary inductive photoperiod.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338176
The photoperiod in plants is perceived at
1 Meristem
2 Flower
3 Floral buds
4 Leaves
Explanation:
Leaves are the main recipients of light energy and thus are the main player in photo period.
NCERT Exemplar
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338177
What is more important of these for flowering?
1 Light period
2 Dark period
3 Both (1) and (2)
4 None of these
Explanation:
The duration of light period as well as duration of dark period is of equal importance. Hence, it can be said that flowering in certain plants depends not only on a combination of light and dark exposures but also their relative durations.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338178
Observe the following diagram carefully and classify the plants with respect to photoperiodism____
1 P-Day neutral plants, Q- Short day plants, R- Long day plants
2 P- Long day plants, Q- Short day plants, R- Day neutral plants
3 P- Short day plants, Q- Long day plants, R- Day neutral plants
4 P-Short day plants, Q- Day neutral plants, R- long day plants.
Explanation:
The given diagram is showing photoperiodism : P- Long day, Q- short day and R- day neutral plants.
