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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.
can you give brief diagram of the tracheal system of cockroach?
What happens to a denatured enzyme regarding its functionality? How can that result be explained with the help of the lock and key model? According to the lock and key model th
What is the excretory organ of an agama lizard?
Glyceraldehyde has a one asymmetric carbon atom the central one and so two stereoisomers which is also known as optical isomers are possible, which is two forms of glyceraldehyde,
Explain Use of food Additives - method of food preservation? Food additives may be defined as substances added intentionally to food, generally, in small quantities to improve
MERIT AND DEMERIT OF FERTILITY MEASUREMENT
The conduction of impulse in a nerve fibre is. a electrochemical process. Maximum speed of transmission of nerve impulse can be 13 metre/second due to axoplasm is much resistant to
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