Tag: chemical coordination in plants

• The plant growth regulators (PGRs) or phytohormones are small, simple molecules of diverse chemical composition. For example, auxins, gibberellins, cytokinins, abscisic acid, and ethylene.
• NAA (naphthalene acetic acid) and 2, 4-D (2, 4-dichlorophenoxyacetic)are synthetic auxins.
• 6-Benzylaminopurine, benzyl adenine, BAP  is a first-generation synthetic cytokinin that elicits plant growth and development responses, setting blossoms and stimulating fruit richness by stimulating cell division.
  
• Hence 2,4-D, NAA, BAP  are synthetic phytohormone.
• So, the correct answer is '2,4-D, NAA, BAP '.

Pytohormone which causes mobalization of nutrients is cytokinin and  it also helps in the formation of new leaves and chloroplast. 

A- Phytohormones are plant hormones. These are organic substances which are produced in the plants. They bring about total control over growth and other physiological functions in the organism.

•  Plant hormones/phytohormones are numerous organic chemical substances that control the growth and differentiation of plant cells, tissues, and organs.
  
• Plant enzymes are both organic and inorganic nature. They are not involved in the regulation of growth directly.
  
• The plasma membrane regulates the transport of materials entering and exiting the cell. so option A is the correct answer.
  

Phytohormones are produced by plants, that regulate germination, growth, metabolism, or other physiological activities.

Phytohormones are also called as plant hormones. These are chemicals which play important role in growth and development of plants. These are involved in various physiological processes of plants like growth, flowering, fruiting, shoot and root development, etc. Phytohormones liks auxin, cytokinin act as growth promoter whereas hormones like abscisic acid, ethylene act as growth inhibitor. 

Phytohormone is the plant hormone that is involved in various processes of plants. Hormones like gibberellin induce flowering and abscisic acid inhibits flowering in plants. In plants, flowering is controlled by light and dark periods (photoperiod) and temperature in specific environments. Plant generally requires either long day or cold condition for flowering.