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Loading and Unloading of Sieve Tubes
In order to understand the loading of food from manufacturing leaf cells to sieve tubes we must examine the anatomy of a minor vein shown in Figure. We can see
Figure: A cross-section of a minor leaf vein. (MC-Mesophyll Cell, XE -Xylem Elements, SE-Sieve Element, TC-Transfer Cells, PP-Phloem Parenchyma cell.
a xylem vessel (X), two sieve elements (SE) which are relatively smaller than other cells and without cytoplasm, the modified companion cells or transfer cells (TC) with dense cytoplasm and phloem parenchyma (PP) which is less dense and vacuolated.
details of these blood groups
Timing and number of doses It has been common practice to give antibiotics at the time of anesthesia induction, which results in adequate serum and tissue levels of the drugs;
similarity between pisces & mammals about dirhynous condition......
What is the difference among double closed circulation and simple closed circulation? Double closed circulation, or closed circulation, is that in which the blood circulates by
Pectin The word pectin is derived from a Greek word which means to "congeal or solidify". Pectin is an acidic structural polysaccharide, found in fruit and vegetables and mainl
Why is an S strain of bacteria able to cause disease in mammals but a R strain is not? The slippery capsule stops the cells of the defence system from capturing and destroying
Embryos Prom Synergids The synergids, which usually degenerate prior to or soon after double fertilization, are reported to give rise to embryos in Argentine mexicana, Tamari
Explain the Penicillium - Fungi? Classification Kingdom - Mycetae Division - Amastigomycota Class - Ascomycetes Subclass - Plectomycetidae Order - Eurotiales
Explain about the Oral cavity and alimental-y tract? Various functional changes and decline in secretary function occur in the digestive tract with aging. These include: Or
Problem 1: What is Placebo and Nocebo? Describe the significance of Placebo in clinical trials. Definition of placebo and Nocebo Significance of Placebo in clinical t
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