166904
The plant respond to photo-periods due to the presence of:
1 phytochromes
2 stomata
3 enzymes
4 phytohormones
Explanation:
A The plant respond to photo-periods due to the presence of phytochromes. It is universally present in green plants and is mainly responsible for photomorphogenetic changes and developmental
[WB JEE-2006
Plant growth and development
166905
The production of the flowers in response to light hours in a day is
1 Photoperiodism
2 Photatropism
3 Phototaxis
4 Photokinesis
Explanation:
A The production of flowers in response to light hours in a day is called photoperiodirm. Photoperiodism is an important adaptation that helps plants to flower at the right time of year. This ensures that the plants are able to reproduce when conditions are most favorable.
[AP EAPCET-23.05.2023
Plant growth and development
166906
The site of perception of light in plants during photoperiodism is
1 Leaf
2 Shoot apex
3 Stem
4 Axillary bud
Explanation:
A Photoperiodism refers to the responses related to the lengths of dark and light periods the site of perception of photoperiod is leaves. The hormone florigen, which are responsible for flowering, induces flowering as it migrates from leaves to shoot apical on induction of required photoperiods.
[NEET-2021]
Plant growth and development
166935
Pigment involved in the perception of the photo periodic stimulus is :
1 cytochrome
2 phytochrome
3 chlorophyll
4 carotenoids
Explanation:
B Pigment involved in the perception of the photoperiodic stimulus is phytochrome. It is universally present in green flowering plants. It is mainly responsible for photomorphogenetic changes and development process in them.
[Rajasthan PMT-1998]
Plant growth and development
166909
Exposure to light inhibits the process of germination in the seeds of following plant:
1 Allium
2 Lactuca
3 Capsella
4 Tobacco
Explanation:
A Exposure to light inhibits the process of germination in the seeds of Allium plant. Plants are classified into two categories depending on their responses to light for germination. Those plants that require light to germinate have been named positive photoblastic. The process of development of new plant that originates from the embryo present in the seed is called germination.
166904
The plant respond to photo-periods due to the presence of:
1 phytochromes
2 stomata
3 enzymes
4 phytohormones
Explanation:
A The plant respond to photo-periods due to the presence of phytochromes. It is universally present in green plants and is mainly responsible for photomorphogenetic changes and developmental
[WB JEE-2006
Plant growth and development
166905
The production of the flowers in response to light hours in a day is
1 Photoperiodism
2 Photatropism
3 Phototaxis
4 Photokinesis
Explanation:
A The production of flowers in response to light hours in a day is called photoperiodirm. Photoperiodism is an important adaptation that helps plants to flower at the right time of year. This ensures that the plants are able to reproduce when conditions are most favorable.
[AP EAPCET-23.05.2023
Plant growth and development
166906
The site of perception of light in plants during photoperiodism is
1 Leaf
2 Shoot apex
3 Stem
4 Axillary bud
Explanation:
A Photoperiodism refers to the responses related to the lengths of dark and light periods the site of perception of photoperiod is leaves. The hormone florigen, which are responsible for flowering, induces flowering as it migrates from leaves to shoot apical on induction of required photoperiods.
[NEET-2021]
Plant growth and development
166935
Pigment involved in the perception of the photo periodic stimulus is :
1 cytochrome
2 phytochrome
3 chlorophyll
4 carotenoids
Explanation:
B Pigment involved in the perception of the photoperiodic stimulus is phytochrome. It is universally present in green flowering plants. It is mainly responsible for photomorphogenetic changes and development process in them.
[Rajasthan PMT-1998]
Plant growth and development
166909
Exposure to light inhibits the process of germination in the seeds of following plant:
1 Allium
2 Lactuca
3 Capsella
4 Tobacco
Explanation:
A Exposure to light inhibits the process of germination in the seeds of Allium plant. Plants are classified into two categories depending on their responses to light for germination. Those plants that require light to germinate have been named positive photoblastic. The process of development of new plant that originates from the embryo present in the seed is called germination.
166904
The plant respond to photo-periods due to the presence of:
1 phytochromes
2 stomata
3 enzymes
4 phytohormones
Explanation:
A The plant respond to photo-periods due to the presence of phytochromes. It is universally present in green plants and is mainly responsible for photomorphogenetic changes and developmental
[WB JEE-2006
Plant growth and development
166905
The production of the flowers in response to light hours in a day is
1 Photoperiodism
2 Photatropism
3 Phototaxis
4 Photokinesis
Explanation:
A The production of flowers in response to light hours in a day is called photoperiodirm. Photoperiodism is an important adaptation that helps plants to flower at the right time of year. This ensures that the plants are able to reproduce when conditions are most favorable.
[AP EAPCET-23.05.2023
Plant growth and development
166906
The site of perception of light in plants during photoperiodism is
1 Leaf
2 Shoot apex
3 Stem
4 Axillary bud
Explanation:
A Photoperiodism refers to the responses related to the lengths of dark and light periods the site of perception of photoperiod is leaves. The hormone florigen, which are responsible for flowering, induces flowering as it migrates from leaves to shoot apical on induction of required photoperiods.
[NEET-2021]
Plant growth and development
166935
Pigment involved in the perception of the photo periodic stimulus is :
1 cytochrome
2 phytochrome
3 chlorophyll
4 carotenoids
Explanation:
B Pigment involved in the perception of the photoperiodic stimulus is phytochrome. It is universally present in green flowering plants. It is mainly responsible for photomorphogenetic changes and development process in them.
[Rajasthan PMT-1998]
Plant growth and development
166909
Exposure to light inhibits the process of germination in the seeds of following plant:
1 Allium
2 Lactuca
3 Capsella
4 Tobacco
Explanation:
A Exposure to light inhibits the process of germination in the seeds of Allium plant. Plants are classified into two categories depending on their responses to light for germination. Those plants that require light to germinate have been named positive photoblastic. The process of development of new plant that originates from the embryo present in the seed is called germination.
166904
The plant respond to photo-periods due to the presence of:
1 phytochromes
2 stomata
3 enzymes
4 phytohormones
Explanation:
A The plant respond to photo-periods due to the presence of phytochromes. It is universally present in green plants and is mainly responsible for photomorphogenetic changes and developmental
[WB JEE-2006
Plant growth and development
166905
The production of the flowers in response to light hours in a day is
1 Photoperiodism
2 Photatropism
3 Phototaxis
4 Photokinesis
Explanation:
A The production of flowers in response to light hours in a day is called photoperiodirm. Photoperiodism is an important adaptation that helps plants to flower at the right time of year. This ensures that the plants are able to reproduce when conditions are most favorable.
[AP EAPCET-23.05.2023
Plant growth and development
166906
The site of perception of light in plants during photoperiodism is
1 Leaf
2 Shoot apex
3 Stem
4 Axillary bud
Explanation:
A Photoperiodism refers to the responses related to the lengths of dark and light periods the site of perception of photoperiod is leaves. The hormone florigen, which are responsible for flowering, induces flowering as it migrates from leaves to shoot apical on induction of required photoperiods.
[NEET-2021]
Plant growth and development
166935
Pigment involved in the perception of the photo periodic stimulus is :
1 cytochrome
2 phytochrome
3 chlorophyll
4 carotenoids
Explanation:
B Pigment involved in the perception of the photoperiodic stimulus is phytochrome. It is universally present in green flowering plants. It is mainly responsible for photomorphogenetic changes and development process in them.
[Rajasthan PMT-1998]
Plant growth and development
166909
Exposure to light inhibits the process of germination in the seeds of following plant:
1 Allium
2 Lactuca
3 Capsella
4 Tobacco
Explanation:
A Exposure to light inhibits the process of germination in the seeds of Allium plant. Plants are classified into two categories depending on their responses to light for germination. Those plants that require light to germinate have been named positive photoblastic. The process of development of new plant that originates from the embryo present in the seed is called germination.
166904
The plant respond to photo-periods due to the presence of:
1 phytochromes
2 stomata
3 enzymes
4 phytohormones
Explanation:
A The plant respond to photo-periods due to the presence of phytochromes. It is universally present in green plants and is mainly responsible for photomorphogenetic changes and developmental
[WB JEE-2006
Plant growth and development
166905
The production of the flowers in response to light hours in a day is
1 Photoperiodism
2 Photatropism
3 Phototaxis
4 Photokinesis
Explanation:
A The production of flowers in response to light hours in a day is called photoperiodirm. Photoperiodism is an important adaptation that helps plants to flower at the right time of year. This ensures that the plants are able to reproduce when conditions are most favorable.
[AP EAPCET-23.05.2023
Plant growth and development
166906
The site of perception of light in plants during photoperiodism is
1 Leaf
2 Shoot apex
3 Stem
4 Axillary bud
Explanation:
A Photoperiodism refers to the responses related to the lengths of dark and light periods the site of perception of photoperiod is leaves. The hormone florigen, which are responsible for flowering, induces flowering as it migrates from leaves to shoot apical on induction of required photoperiods.
[NEET-2021]
Plant growth and development
166935
Pigment involved in the perception of the photo periodic stimulus is :
1 cytochrome
2 phytochrome
3 chlorophyll
4 carotenoids
Explanation:
B Pigment involved in the perception of the photoperiodic stimulus is phytochrome. It is universally present in green flowering plants. It is mainly responsible for photomorphogenetic changes and development process in them.
[Rajasthan PMT-1998]
Plant growth and development
166909
Exposure to light inhibits the process of germination in the seeds of following plant:
1 Allium
2 Lactuca
3 Capsella
4 Tobacco
Explanation:
A Exposure to light inhibits the process of germination in the seeds of Allium plant. Plants are classified into two categories depending on their responses to light for germination. Those plants that require light to germinate have been named positive photoblastic. The process of development of new plant that originates from the embryo present in the seed is called germination.
