Which hormone promotes cell elongation in young shoots through acid growth, involving activation of proton pumps and cell-wall loosening?
Auxin
Auxin promotes acid growth: proton pumps acidify the cell wall, enabling wall loosening and elongation. The specific mechanism distinguishes it from the broader growth effects of gibberellins.
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 ?