The precipitation and temperature conditions in terrestrial regions are affected by transpiration. The pace of transpiration is directly... View Article
When sugar is converted into starch in guard cells, the stomatal pores completely close. During night time, carbon dioxide liberated during the... View Article
Always, water moves from low DPD to high DPD. Solutes and water enter through the root hair during absorption of water by roots. Once water is... View Article
Root tips mainly absorb water from soil. The two independent mechanisms involved in water absorption in plants are active and passive water... View Article
Movement of solutes or organic food from one to another structure in the soluble form is the translocation of solutes. For instance, from leaves... View Article
In pure water, chemical potential or water potential is arbitrarily zero bar. Solute potential or osmotic potential indicates the impact of the... View Article
Water occurs in the following different forms in the soil - gravitational water, free water, hygroscopic water, capillary water and chemically... View Article
Zelitch proposed that glycolic acid takes form in the guard cells. It is formed under the influence of low concentration of carbon dioxide.... View Article
The rate of salt absorption increases when the temperature increases. However, this is to some limit as absorption of salt is hindered at high... View Article
Potometer or transpirometer is used to measure the transpiration rate. It is a long glass tube, side tube at right angles. A plant shoot sample... View Article
Water uptake is due to transpiration and photosynthesis. Potometer or transpirometer is an apparatus or instrument using which the rate of... View Article
Phloem proteins or P-proteins are elements found in phloem sieve tubes in large quantities. They are involved in sealing off the sieve cell by... View Article
Stomata are prime structures for transpiration. The leaf and stem epidermis are supplied with many stomata. Stomatal transpiration is the... View Article
Different ions from the soil are transported actively into roots' vascular tissues. Water goes as per the potential gradient, increasing the... View Article
Following are the differences between guard cells and epidermal cells - Epidermal cells are irregularly structured while guard cells have a... View Article
Facilitated division or transport is the spontaneous passing of ions or molecules across a biological layer passing via particular transmembrane... View Article
When turgidity grows in two guard cells that surround each stomatal pore or aperture, the thin exterior wall bulges, forcing the inner walls into... View Article
At each of the poles of cells, a complete chromosome set comes together. To create two new nuclei, a membrane is formed around each chromosome... View Article
During prophase, chromosomes condense into X-shaped structures. Each of the chromosomes comprises two sister chromatids that have identical... View Article
Meiosis reduces the chromosome number by half. The diploid cell entering mitosis will divide, producing two diploid daughter cells. Diploid cells... View Article
