Cell types forming xylem
Specify the cell types which form the xylem? Specify its main features?
Expert
The main cells of xylem involve tracheids and the vessel elements. The tracheids and the vessel elements are the dead cells which have lost their cytoplasm and only their cell wall saturated with the lignin (an impermeable biopolymer) remained. The tracheids form the tubes which communicate with the neighboring tubes through the pores; the vessel elements do not have pores but however they communicate with successive vessel element through perforations in their extremities.
this is my recerch sign and symptoms of blood cancer
Give a brief introduction of the term biological neuron model. And also describe how it is dissimilar from artificial neuron?
What are hormones which promote the release of female gamete through the follicle and at which day of menstrual cycle does such phenomenon occur? What is the name of this event?
Define the term Ensembl in Genome databases?
Define the term NAD? Also state the role of NAD molecule in the glycolysis?
Which germ layers present in the cnidarians? Which tissues of animal do they originate?
Which is the additional embryonic membrane whose purpose is to store nitrogen wastes of the embryo? Is this function existed in placental mammalian embryos?
Noncustomer Analysis Typically, to grow their share of a market, companies strive to retain and expand existing customers. This often leads to finer segmentation and greater tailoring of offe
Elucidate the term extraembryonic membranes?
Give a brief explanation of autotrophic beings. And also give a brief explanation of heterotrophic beings?
18,76,764
1939768 Asked
3,689
Active Tutors
1417090
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!