Which of the following is not a plant hormone?
Thyroxin
Thyroxin is a hormone secreted by the thyroid gland in animals; it regulates basal metabolism, growth and development, and is not produced by plants. Gibberellins (stem elongation, seed-dormancy breaking), auxins (cell elongation, apical dominance) and cytokinins (cell division, delayed senescence) are all phytohormones. Hence thyroxin is the odd one out.
Which of the following has the highest protein content per gram?
______ part of xylem tissue in plants stores food.
In leaves transpiration takes place through ________.
The development of a fruit without fertilization is called ______.
_______ is the pattern of veins in the blade of a leaf.
Among plants, three different genera Solanum, Petunia and Datura are placed in which family?
Photosynthesis takes place in the presence of chlorophyll and _________.
The first formed primary xylem elements are called ___________.
Sexual reproduction in Algae that takes place through fusion of two similar size gametes is called?
Bryophytes are also called _________ of the plant kingdom.
Which of the following is a type of nutrition?
I. Heterotrophic
II. Autotrophic
Part of N 2cycle that is opposed to N 2fixation is:
Which among the following is the reproductive part of a plant?
Fibres (Adventitious) roots are found in :
In which Part of the flower does Meiosis take place ?